Lab Exercise 11_ The Integumentary System

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Miami Dade College, Kendall *

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2/6/24, 9:11 PM Lab Exercise 11: The Integumentary System https://session.masteringaandp.com/myct/assignmentPrintView?assignmentID=10289610 1/32 Lab Exercise 11: The Integumentary System Due: 11:59pm on Friday, April 19, 2024 You will receive no credit for items you complete after the assignment is due. Grading Policy A message from your instructor... Overview 1. To test your readiness for Lab Exercise 8, take the Pre-lab Quiz. 2. Use Practice Anatomy Lab to review, practice, and master the names and locations of anatomical structures. 3. After completing the lab, take the Post-lab Quiz to check your mastery of the topics. If your instructor has created a class and you have joined it, then your results from the Pre- and Post-lab Quizzes and the PAL Lab Practical Exam will report to your instructor's gradebook. You can always see your own results by clicking on the Gradebook tab. Please take advantage of Pearson's Tutoring Services if you need additional help. Pre-lab Quiz Lab Manual Exercise 11 Pre-lab Quiz Question 1 Part A If a needle pierced your forearm, what is the order of epidermal layers the needle would pass through? ANSWER: Lab Manual Exercise 11 Pre-lab Quiz Question 2 Part A The dermis . ANSWER: Lab Manual Exercise 11 Pre-lab Quiz Question 3 Part A Which muscles attached to hair follicles cause "gooseflesh?" ANSWER: granulosum, basale, spinosum, corneum basale, spinosum, granulosum, corneum corneum, granulosum, spinosum, basale basale, spinosum, granulosum, lucidum, corneum is where melanocytes are found lacks sensory corpuscles and glands has two layers is avascular
2/6/24, 9:11 PM Lab Exercise 11: The Integumentary System https://session.masteringaandp.com/myct/assignmentPrintView?assignmentID=10289610 2/32 Lab Manual Exercise 11 Pre-lab Quiz Question 4 Part A Bella stepped on a thumbtack that penetrated to the second layer of epidermis, which cells were damaged? ANSWER: Lab Manual Exercise 11 Pre-lab Quiz Question 5 Part A Which of the following is a skin receptor for touch? ANSWER: BSC2085L Chapter 008 Pre-lab Quiz-001 Part A Which of the following organs are NOT found in the integumentary system? ANSWER: arrector pili skeletal muscle arrector integument arrector folliculi basale lucidum granulosum spinosum tactile Pacinian corpuscles lamellated corpuscles free nerve ending Sudoriferous glands Epiphyseal line Sensory receptors Hair Fingernails Sebaceous glands
2/6/24, 9:11 PM Lab Exercise 11: The Integumentary System https://session.masteringaandp.com/myct/assignmentPrintView?assignmentID=10289610 3/32 BSC2085L Chapter 008 Pre-lab Quiz-002 Part A In the skin, the visible outermost layer of cells is dead. ANSWER: BSC2085L Chapter 008 Pre-lab Quiz-003 Part A The integumentary system contributes to homeostasis by maintaining body temperature, and allowing you to respond to external stimuli. ANSWER: BSC2085L Chapter 008 Pre-lab Quiz-004 Part A Which vitamin is produced in the skin following exposure to ultraviolet light? ANSWER: BSC2085L Chapter 008 Pre-lab Quiz-005 Part A What is one of the two main structural layers of the skin? ANSWER: True False True False Vitamin D Vitamin B Vitamin A Biotin Melanin Hypodermis Epidermis Subcutaneous
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2/6/24, 9:11 PM Lab Exercise 11: The Integumentary System https://session.masteringaandp.com/myct/assignmentPrintView?assignmentID=10289610 4/32 A message from your instructor... Activity 1: Epidermis and Dermis Art-labeling Activity: Structure of a Hair Identify the structures along the long axis of a hair follicle. Part A Drag the labels onto the long axis of a hair follicle. ANSWER: Art-labeling Activity: Sebaceous Glands, Sweat Glands, and Follicles Label the sebaceous glands, sweat glands, and follicles. Part A Drag the correct label to the appropriate structure of the sebaceous glands, sweat glands, and follicles. ANSWER: Help Reset Hair root Hair papilla Hair shaft Connective tissue sheath Sebaceous gland Hair bulb Arrector pili muscle
2/6/24, 9:11 PM Lab Exercise 11: The Integumentary System https://session.masteringaandp.com/myct/assignmentPrintView?assignmentID=10289610 5/32 Art-labeling Activity: Organization of the Epidermis Identify the epidermal layers. Part A Drag the labels onto the epidermal layers. ANSWER: Help Reset Help Reset Apocrine sweat gland Sebaceous gland Epidermis Merocrine sweat gland Dermis Subcutaneous layer (hypodermis) Ducts Sebaceous follicle Stratum lucidum Stratum granulosum Stratum basale Stratum spinosum Stratum corneum Basement membrane
2/6/24, 9:11 PM Lab Exercise 11: The Integumentary System https://session.masteringaandp.com/myct/assignmentPrintView?assignmentID=10289610 6/32 Lab Manual Exercise 11 Post-lab Quiz Question 1 Part A Keratinocytes are important cells in the epidermis because they . ANSWER: Lab Manual Exercise 11 Post-lab Quiz Question 2 Part A Which of the following layers of the epidermis is responsible for cell division and replacement? ANSWER: Lab Manual Exercise 11 Post-lab Quiz Question 3 Part A The papillary layer of the dermis consists of areolar tissue containing numerous collagen and elastic fibers. Folds in the tissue are called . ANSWER: Lab Manual Exercise 11 Post-lab Quiz Question 4 Part A What is the pigment that protects deeper cells of the skin from harmful UV radiation? ANSWER: are able to reproduce sporadically as needed protect the skin from UV rays produce a fibrous protein that gives the skin protective properties take about 2-3 days to migrate to the surface of the skin stratum spinosum stratum basale stratum corneum stratum granulosum reticular papillae sebaceous glands hair follicles dermal papillae
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2/6/24, 9:11 PM Lab Exercise 11: The Integumentary System https://session.masteringaandp.com/myct/assignmentPrintView?assignmentID=10289610 7/32 Lab Manual Exercise 11 Post-lab Quiz Question 5 Part A In thick skin, what is the extra layer of cells in the epidermis? ANSWER: BSC2085L Chapter 008 Activity 1 Epidermis and Dermis-007 Part A What type of tissue is the epidermis composed of? ANSWER: BSC2085L Chapter 008 Activity 1 Epidermis and Dermis-008 Part A Which layer of skin contains folds of connective tissue that result in the appearance of fingerprints? ANSWER: BSC2085L Chapter 008 Activity 1 Epidermis and Dermis-009 melanocytes keratinocytes keratin melanin stratum granulosum stratum lucidum stratum basale stratum corneum Stratified squamous epithelium Stratified cuboidal epithelium Simple squamous epithelium Pseudostratified squamous epithelium Stratified columnar epithelium Papillary layer Subcutaneous layter (hypodermis) Reticular layer
2/6/24, 9:11 PM Lab Exercise 11: The Integumentary System https://session.masteringaandp.com/myct/assignmentPrintView?assignmentID=10289610 8/32 Part A Which of the following warning signs, called the "ABCD's" of skin cancer, is correctly described? (Mark all that apply.) ANSWER: A message from your instructor... Activity 2: Accessory Structures of the Skin Lab Manual Exercise 11 Post-lab Quiz Question 6 Part A Which of the following are the two types of sudoriferous (sweat) glands? ANSWER: Lab Manual Exercise 11 Post-lab Quiz Question 9 Part A Acne is a disorder associated with ___________. ANSWER: Lab Manual Exercise 11 Post-lab Quiz Question 10 Part A Which type of burn destroys the entire epidermis and portions of the dermis but does not injure hair follicles and gland in the dermis? ANSWER: A = asymmetry B = border C = color D = diameter mammary and merocrine eccrine and apocrine mammary and sebaceous sebaceous and merocrine sweat glands merocrine sebaceous glands mammary glands
2/6/24, 9:11 PM Lab Exercise 11: The Integumentary System https://session.masteringaandp.com/myct/assignmentPrintView?assignmentID=10289610 9/32 BSC2085L Chapter 008 Activity 2 Accessory Structures of the Skin-001 Part A Which type of gland produces sweat? ANSWER: BSC2085L Chapter 008 Activity 2 Accessory Structures of the Skin-002 Part A Which type of gland can become clogged with oil and bacteria, forming a pimple or acne? ANSWER: BSC2085L Chapter 008 Activity 2 Accessory Structures of the Skin-003 Part A What is the bodily secretion that functions to lubricate the hair and skin and has antibacterial properties? ANSWER: fourth-degree burn third-degree burn first-degree burn second-degree burn Sudoriferous gland Ceruminous gland Endocrine gland Holocrine gland Sebaceous gland Sudoriferous gland Merocrine gland Endocrine gland Apocrine gland Sebaceous gland Sebum Keratin Melanin Sweat Eleidin
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2/6/24, 9:11 PM Lab Exercise 11: The Integumentary System https://session.masteringaandp.com/myct/assignmentPrintView?assignmentID=10289610 10/32 BSC2085L Chapter 008 Activity 2 Accessory Structures of the Skin-004 Part A Which of the following is the muscle that is attached to a hair follicle and causes "goosebumps" to form when it is contracted? ANSWER: BSC2085L Chapter 008 Activity 2 Accessory Structures of the Skin-005 Part A After being burned in the kitchen by hot oil, Sally, who was in a great deal of pain, went to the emergency room. Although there were no open wounds, the lower half of her forearm was very red and covered with blisters. How would you classify her burn? ANSWER: A message from your instructor... General Exercise Content Art-labeling Activity: Components of the Integumentary System Label the layers of the cutaneous membrane and accessory structures. Part A Drag the labels onto the diagram to identify the layers of the cutaneous membrane and accessory structures. ANSWER: Hair root plexus Vellus Lunula Hyponychium Arrector pili Second-degree burn Fourth-degree burn First-degree burn Third-degree burn
2/6/24, 9:11 PM Lab Exercise 11: The Integumentary System https://session.masteringaandp.com/myct/assignmentPrintView?assignmentID=10289610 11/32 A message from your instructor... Practice Anatomy Lab 3.0: Anatomical Models > Integumentary System PAL: Models > Integumentary System > Lab Practical > Question 1 Part A Identify the indicated structure. ANSWER: Help Reset Pressure receptor Reticular layer of the dermis Papillary layer of the dermis Epidermis Touch receptor Sebaceous gland
2/6/24, 9:11 PM Lab Exercise 11: The Integumentary System https://session.masteringaandp.com/myct/assignmentPrintView?assignmentID=10289610 12/32 PAL: Models > Integumentary System > Lab Practical > Question 3 Part A Identify the highlighted structure. ANSWER: PAL: Models > Integumentary System > Lab Practical > Question 5 Part A
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2/6/24, 9:11 PM Lab Exercise 11: The Integumentary System https://session.masteringaandp.com/myct/assignmentPrintView?assignmentID=10289610 13/32 Identify the highlighted structure. ANSWER: PAL: Models > Integumentary System > Lab Practical > Question 6 Part A Identify the highlighted layer. ANSWER:
2/6/24, 9:11 PM Lab Exercise 11: The Integumentary System https://session.masteringaandp.com/myct/assignmentPrintView?assignmentID=10289610 14/32 PAL: Models > Integumentary System > Lab Practical > Question 7 Part A Identify the highlighted layer. ANSWER: PAL: Models > Integumentary System > Lab Practical > Question 10 Part A
2/6/24, 9:11 PM Lab Exercise 11: The Integumentary System https://session.masteringaandp.com/myct/assignmentPrintView?assignmentID=10289610 15/32 Identify the highlighted structures. ANSWER: PAL: Models > Integumentary System > Lab Practical > Question 12 Part A Is the highlighted layer of the skin keratinized or non-keratinized? ANSWER:
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2/6/24, 9:11 PM Lab Exercise 11: The Integumentary System https://session.masteringaandp.com/myct/assignmentPrintView?assignmentID=10289610 16/32 PAL: Models > Integumentary System > Quiz > Question 1 Part A Which structure is highlighted? ANSWER: PAL: Models > Integumentary System > Quiz > Question 2 Part A sudoriferous gland hair root arrector pili muscle hair bulb
2/6/24, 9:11 PM Lab Exercise 11: The Integumentary System https://session.masteringaandp.com/myct/assignmentPrintView?assignmentID=10289610 17/32 Which structure is highlighted? ANSWER: PAL: Models > Integumentary System > Quiz > Question 8 Part A papillary layer of dermis duct of eccrine gland stratum corneum Meissner's corpuscle
2/6/24, 9:11 PM Lab Exercise 11: The Integumentary System https://session.masteringaandp.com/myct/assignmentPrintView?assignmentID=10289610 18/32 Identify the layer indicated in the figure above. ANSWER: PAL: Models > Integumentary System > Quiz > Question 10 Part A epidermis papillary layer of dermis reticular layer of dermis hypodermis
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2/6/24, 9:11 PM Lab Exercise 11: The Integumentary System https://session.masteringaandp.com/myct/assignmentPrintView?assignmentID=10289610 19/32 Which structures would you expect to find in the highlighted layer? ANSWER: PAL: Models > Integumentary System > Quiz > Question 13 Part A free nerve endings only adipose tissue only blood vessels, free nerve ending, and receptor cells blood vessels only
2/6/24, 9:11 PM Lab Exercise 11: The Integumentary System https://session.masteringaandp.com/myct/assignmentPrintView?assignmentID=10289610 20/32 What is secreted by the highlighted structure? ANSWER: PAL: Models > Integumentary System > Quiz > Question 14 Part A mucus cerumin sebum sweat
2/6/24, 9:11 PM Lab Exercise 11: The Integumentary System https://session.masteringaandp.com/myct/assignmentPrintView?assignmentID=10289610 21/32 Which layer is highlighted? ANSWER: PAL: Models > Integumentary System > Quiz > Question 15 Part A stratum spinosum stratum basale stratum granulosum stratum lucidum
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2/6/24, 9:11 PM Lab Exercise 11: The Integumentary System https://session.masteringaandp.com/myct/assignmentPrintView?assignmentID=10289610 22/32 What is produced by the highlighted structures? ANSWER: A message from your instructor... Practice Anatomy Lab 3.0: Histology > Integumentary System PAL: Histology > Integumentary System > Lab Practical > Question 6 Part A Identify the highlighted region of the skin. sebum semen sweat cerumen
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2/6/24, 9:11 PM Lab Exercise 11: The Integumentary System https://session.masteringaandp.com/myct/assignmentPrintView?assignmentID=10289610 23/32 ANSWER: PAL: Histology > Integumentary System > Lab Practical > Question 8 Part A Identify the highlighted region of the skin. ANSWER: PAL: Histology > Integumentary System > Lab Practical > Question 11 Part A Identify the highlighted structure. ANSWER:
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2/6/24, 9:11 PM Lab Exercise 11: The Integumentary System https://session.masteringaandp.com/myct/assignmentPrintView?assignmentID=10289610 24/32 PAL: Histology > Integumentary System > Lab Practical > Question 12 Part A Identify the highlighted structure. ANSWER: PAL: Histology > Integumentary System > Lab Practical > Question 13 Part A Identify the highlighted structure. ANSWER: Core Lab Coaching Activity: Integumentary System
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2/6/24, 9:11 PM Lab Exercise 11: The Integumentary System https://session.masteringaandp.com/myct/assignmentPrintView?assignmentID=10289610 25/32 The skin seals the body in a protective barrier. There are two principal tissue layers in the skin: a superficial layer of epithelium called the epidermis and a deeper layer of connective tissue, the dermis. The epidermis consists of a stratified squamous epithelium organized into many distinct layer, or strata, of cells. Dermis is a thick layer of irregularly arranged connective tissue that supports and nourishes the epidermis, and secures the integument to the underlying structures. The dermis is divided into two layers: papillary and reticular. Within the reticular layer lie various accessory structures. Part A - Layers of Epidermis What are the five layers (strata) of the epidermis found in the thick skin? Drag and drop the terms on the left to label the layers of the epidermis. You did not open hints for this part. ANSWER: Part B - Epidermal Cell Properties The cells of the epidermis each have certain morphological characteristic and function(s). Study the cell properties of the epidermis. Select the correct cell type matching the description. You did not open hints for this part. ANSWER: Help Reset Stratum granulosum Stratum corneum Stratum spinosum Stratum basale Basement membrane Stratum lucidum
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2/6/24, 9:11 PM Lab Exercise 11: The Integumentary System https://session.masteringaandp.com/myct/assignmentPrintView?assignmentID=10289610 26/32 Part C - Dermal Layers and the Accessory Structures. Dermis is a thick layer of irregularly arranged connective tissue that supports and nourishes the epidermis and secures the integument to the underlying structures. The dermis is divided into two layers: papillary and reticular. Within the reticular layer lie various accessory structures such as hair follicles, sebaceous and sweat glands, and nerve fibers. Drag and drop the labels onto the diagram of the dermis. You did not open hints for this part. ANSWER: Part D - Functions of the Accessory Structures of the Skin The dermis is composed of various accessory structures that collectively maintain the overall functionality of the integument. These structures include hair follicles, sebaceous and sudoriferous glands, various sensory nerve fibers, and nails. Match the term with the appropriate description. You did not open hints for this part. ANSWER: Reset Help Stratum spinosum Stem cells in the stratum basale Keratinocytes Stratum lucidum Stratum granulosum Melanocytes Stratum corneum : Makes up the majority of the cells in the epidermis and synthesize and accumulate keratin. : Cells with rapid mitotic cell division. : Variations in skin color are due to the presence of these types of cells. : Epidermal layer containing cells connected by desmosomes. : Epidermal cells with visible granules responsible for synthesizing keratohyalin and help to reduce water loss. : Transparent epidermal layer only found in the palm of the hands and sole of the feet. : Forms the most superficial layers of the epidermis. Help Reset Papillary layer Hypodermis Exposed hair shaft Sebaceous gland Touch receptor Pore of sweat gland Pressure receptor Arrector pili muscle Sweat gland duct Sweat gland Hair follicle Reticular layer
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2/6/24, 9:11 PM Lab Exercise 11: The Integumentary System https://session.masteringaandp.com/myct/assignmentPrintView?assignmentID=10289610 27/32 Part E - Functions of the Accessory Structures of the Skin The dermis is composed of various accessory structures that collectively maintain the overall functionality of the integument. These structures include hair follicles, sebaceous and sudoriferous glands, various sensory nerve fibers, and nails. Match the term with the appropriate description. You did not open hints for this part. ANSWER: Exercise 11 Review & Practice Sheet: Integumentary System Review & Practice Sheet Section A Part A Reset Help Apocrine sudoriferous glands Vellus hairs Merocrine sudoriferous glands Sebum Terminal hairs Sebaceous glands Intermediate hairs Hair : Glands that secrete sebum. : Sweat glands becoming active after puberty and found in the axillary and the groin regions. : Type of sweat glands found throughout most of the dermis. : Type of hair found on the scalp, eyebrows and eyelashes. : Oily substance that coats the hair shafts to reduce brittleness. : Type of hair that covers much of the skin and has a 1Cpeach fuzz 1D feel to it. : Type of hair that covers the arms and the legs. : Structure that can also act as a sensory receptor. Reset Help Lunula Arrector pili Free edge Hair root plexus Cuticle Matrix Exposed hair shaft Nail root : Structure that warps around the base of each hair follicle and is sensitive to movement of the hair. : Structure in the hair follicle that goes under mitotic cell division to elongate the hair. : Visible portion of the hair. : Contraction of this muscle will cause goose bumps. : Half moon shape structure near the cuticle. : Part of the nail responsible for nail growth. : Area of the nail that extends past the end of the digit. (French manicurist typically polish this area white) : Dead part of the skin, which is composed of stratum corneum, at the base of lunula.
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2/6/24, 9:11 PM Lab Exercise 11: The Integumentary System https://session.masteringaandp.com/myct/assignmentPrintView?assignmentID=10289610 28/32 Label the structures of the integument. ANSWER: Part B Label the structures of the integument. ANSWER: Part C Label the hair structures. ANSWER: Help Reset Help Reset Sweat glands Hair papilla Arrector pili muscle Hair bulb Hair root Hair follicle Lamellated corpuscles Sebaceous gland Hair shaft Tactile corpuscle Stratum lucidum Sweat gland Reticular layer Stratum basale Stratum corneum Artery Stratum spinosum Stratum granulosum Papillary layer
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2/6/24, 9:11 PM Lab Exercise 11: The Integumentary System https://session.masteringaandp.com/myct/assignmentPrintView?assignmentID=10289610 29/32 Part D Label the nail structures. ANSWER: Review & Practice Sheet Section B Part E Drag and drop the terms at the left to match the appropriate descriptions at the right. ANSWER: Help Reset Help Reset Dermis Arrector pili muscle Hair follicle Epidermis Sweat gland Sebaceous glands Matrix Hyponychium Dermis Nail body Root Eponychium Free edge Epidermis Nail bed
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2/6/24, 9:11 PM Lab Exercise 11: The Integumentary System https://session.masteringaandp.com/myct/assignmentPrintView?assignmentID=10289610 30/32 Review & Practice Sheet Section C Part F Drag and drop the terms at the left to complete the following statements. ANSWER: Art-labeling Activity: Sweat and Sebaceous Glends Reset Help Apocrine sweat gland Stratum lucidum Keratin Stratum corneum Sebaceous gland Stratum basale Merocrine sweat gland Corneocytes Reticular layer Arrector pili Papillary layer The is a layer that produces new keratinocytes. is a type of sweat gland that is associated with hair follicles. The has a function in thermoregulation. is a deep layer of dermis. The is a folded layer of dermis located next to the epidermis. is a protein in hair and nails. The is a layer that is only found in areas of thick skin. is a type of gland that produces sebum. are dead cells of the epidermis. is a muscle that is attached to hair follicles. is the most superficial layer of epidermis. Reset Help eponychium reticular keratinocytes carotene stratum germinativum accessory lucidum sebaceous melanocytes apocrine Hair and nails are produced by the layer of the epidermis. The yellow-orange pigment of the skin is . The cuticle around a nail is called the . glands produce wax. The living cells in the epidermis are called . Nails, hair, and glands are considered structures of the skin. Dense irregular connective tissue is found in the layer of the dermis. The gland that lubricates hair within follicles is the gland. A layer found only in thick skin is the stratum . The pigment melanin is produced by cells in the epidermis called .
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2/6/24, 9:11 PM Lab Exercise 11: The Integumentary System https://session.masteringaandp.com/myct/assignmentPrintView?assignmentID=10289610 31/32 Part A Drag the labels to the appropriate location in the figure. ANSWER: Lab Manual Exercise 11 Post-lab Quiz Question 8 Part A Which glands secrete an oily substance that coats the hair shafts and the epidermal surface? ANSWER: Lab Manual Exercise 11 Post-lab Quiz Question 7 Part A What is the whitish portion of the proximal nail body where blood vessels do not show through the layer of keratinized cells? ANSWER: Help Reset merocrine glands mammary glands sebaceous glands sweat glands Sebaceous follicle Sweat gland ducts Sweat pore Hypodermis Dermis Apocrine sweat gland Sebaceous gland Epidermis Merocrine sweat gland
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2/6/24, 9:11 PM Lab Exercise 11: The Integumentary System https://session.masteringaandp.com/myct/assignmentPrintView?assignmentID=10289610 32/32 Score Summary: Your score on this assignment is 0.0%. You received 0 out of a possible total of 100 points. nail body eponychium lunula nail root
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