Anatomy Lab Homework 3 (1)

Page 75-76, Pre-lab. 1. The tissues that cover external and internal body surfaces are? - Answer: epithelial 2. The cells with a flat shape are named? - Answer: squamous 3. The basal surface of epithelial tissue cells attaches to the? - Answer: basement membrane 4. If a structure cut has a circular appearance when observed, the section was a? - Answer: cross-section 5. Which of the following is not a function of epithelial tissues? - Answer: bind and support 6. Which of the following epithelial tissues is more than one cell layer thick? - Answer: transitional 7. Which of the following epithelial tissues does not have all cells resting on the basement membrane? - Answer: stratified squamous 8. The study of tissues is called histology. - Answer: true 9. The basement membrane is composed of cells. - Answer: false Page 93, Pre-lab. 1. Which muscle tissue is under conscious control? - Answer: skeletal 2. Which of the following organs lacks smooth muscle? - Answer: heart 3. Which muscle tissue lacks striations? - Answer: smooth 4. Which of the following conduct actions potentials? - Answer: neurons 5. Muscles of facial expressions are? - Answer: skeletal muscles 6. Which muscle tissue is multinucleated? - Answer: skeletal 7. Intercalated discs represent the junctions where cardiac muscle cells fit together. - Answer: true 8. Both cardiac and skeletal muscle cells are under voluntary control. - Answer: false Page 98, Part B.

1. Nervous tissue: coordinates, regulates and integrates body functions. 2. Cardiac muscle: contains intercalated discs. 3. Smooth muscle: muscle that lacks striations. 4. Cardiac muscle: striated and involuntary. 5. Skeletal muscle: striated and voluntary. 6. Nervous tissue: contains neurons and neuroglia. 7. Skeletal muscle: muscle attached to bones. 8. Cardiac muscles: muscle that composes heart. 9. Smooth muscle: moves food through the digestive tract. 10. Nervous tissue: conducts impulses along cellular processes. 11. Skeletal muscle: muscle under conscious control. 12. Smooth muscle: muscle of blood vessels and iris. Page 99-100, Pre-lab. 1. Which of the following is not a function of the integumentary system? - Answer: movement 2. The two distinct skin layers are the? - Answer: epidermis and dermis 3. Apocrine sweat glands are located in ____ regions of the body. - Answer: axillary and genital 4. The hypodermis is composed of ____ tissues. - Answer: adipose connective and stratified squamous epithelial. 5. The ____ of the epidermis is only present in thick skin. - Answer: stratum lucidum 6. Frequent cell division occurs in the ____ of the epidermis. - Answer: stratum basale 7. The greatest concentration of melanin is in the dermis. - Answer: false 8. Thick skin of the palms and soles contains five strata of the epidermis. - true Page 106, Part B, #1 1. How does the skin of your palm differ from that on the back (posterior) of your hand? - Answer: The skin on our palm is considered thicker because it does not contain hair follicles which means it has an extra layer of skin compared to the back of our hand which does have hair follicles. Page 107, #3,4,6 State the specific location of melanin observed in dark skin. - Answer: The basal layer of the epidermis.