bartleby

Videos

Question
Book Icon
Chapter 7, Problem 1.1BGL
Summary Introduction

To label: The skin structure.

Introduction: The integumentary system includes skin, the largest organ that covers the entire body. The skin is made up of multiple layers, the outer epidermis, the middle dermis, and the inner hypodermis layers. The epidermis contains cells, such as Merkel cells, Langerhans cells, keratinocytes, and melanocytes. The function of the epidermis is to act as a barrier against the pathogens. The dermis layer provides nutrients to the epidermal layer and connects the epidermal layer with the innermost hypodermis.

Expert Solution & Answer
Check Mark

Answer to Problem 1.1BGL

Pictorial representation:

Laboratory Manual for Anatomy and Physiology, 6e Loose-Leaf Print Companion with WileyPLUS Blackboard Card Set, Chapter 7, Problem 1.1BGL

Parts of the skin

Explanation of Solution

The skin and its associated structures play many important roles in the body that includes protection, production of vitamin D, excretion, and maintenance of body temperature. The skin structure includes dermal papillae, epidermis, papillary layer of the dermis, the reticular layer of the dermis, and the hypodermis.

Dermal papillae: It is the folding of the dermal papillary layer that increases the surface area of the skin.

Epidermis: It is the outermost layer of the skin, chiefly composed of keratinocytes (nearly 95%). It is a tough layer and acts as a good barrier.

Papillary layer: This layer lies next to the epidermis, and it is the sublayer of the dermis. It is composed of the dermal papillae and areolar connective tissue.

Reticular layer: The layer next to the papillary layer is the reticulate layer that is made up of dense irregular connective tissue that provides strength and elasticity.

Hypodermis: It is the deepest layer of skin that is also called subcutaneous layer.

The basement membrane lies between the epidermis and the dermal papillae of the dermis.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!
Students have asked these similar questions
The diagram below illustrates a quorum sensing pathway from Staphylococcus aureus. Please answer the following questions. 1. Autoinduction is part of the quorum sensing system. Which promoter (P2 or P3) is critical for autoinduction? 2)This staphylococcus aureus grows on human wounds, causing severe infections. You would like to start a clinical trial to treat these wound infections. Please describe: a) What molecule do you recommend for the trial. Why? b) Your trial requires that Staphylococcus aureus be isolated from the wound and submitted to genome sequencing before admittance. Why? What are you testing for?  3) If a mutation arises where the Promoter P3 is constitutively active, how would that influence sensitivity to AIP? Please explain your rationale. 4) This pathway is sensitive to bacterial cell density. Describe two separate mutation that would render the pathway active independent of cell density. Briefly explain your rationale. Mutation 1 Mutation 2
There is currently a H5N1 cattle outbreak in North America. According to the CDC on Feb 26*: "A multistate outbreak of HPAI A(H5N1) bird flu in dairy cows was first reported on March 25, 2024. This is the first time that these bird flu viruses had been found in cows. In the United States, since 2022, USDA has reported HPAI A(H5N1) virus detections in more than 200 mammals." List and describe two mechanisms that could lead to this H5N1 influenza strain evolving to spread in human:  Mechanisms 1: Mechanisms 2: For the mutations to results in a human epidered they would need to change how the virus interacts with the human host. In the case of mutations that may promote an epidemic, provide an example for: a protein that might incur a mutation: how the mutation would change interactions with cells in the respiratory tract (name the receptor on human cells) List two phenotypic consequence from this mutation that would increase human risk
You have a bacterial strain with the CMU operon: a) As shown in the image below, the cmu operon encodes a peptide (Pep1), as well as a kinase and regulator corresponding to a two-component system. The cmu operon is activated when Pep 1 is added to the growth media. Pep1 is a peptide that when added extracellularly leads to activation of the Cmu operon. Pep1 cmu-kinase cmu-regulator You also have these genetic components in other strains: b) An alternative sigma factor, with a promoter activated by the cmu-regulator, that control a series of multiple operons that together encode a transformasome (cellular machinery for transformation). c) the gene cl (a repressor). d) the promoter X, which includes a cl binding site (and in the absence of cl is active). e) the gene gp (encoding a green fluorescence protein). Using the cmu operon as a starting point, and assuming you can perform cloning to rearrange any of these genomic features, how would you use one or more of these to modify the…
Knowledge Booster
Background pattern image
Biology
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.
Similar questions
SEE MORE QUESTIONS
Recommended textbooks for you
Text book image
Human Anatomy & Physiology (11th Edition)
Biology
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:PEARSON
Text book image
Biology 2e
Biology
ISBN:9781947172517
Author:Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:OpenStax
Text book image
Anatomy & Physiology
Biology
ISBN:9781259398629
Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa Stouter
Publisher:Mcgraw Hill Education,
Text book image
Molecular Biology of the Cell (Sixth Edition)
Biology
ISBN:9780815344322
Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter Walter
Publisher:W. W. Norton & Company
Text book image
Laboratory Manual For Human Anatomy & Physiology
Biology
ISBN:9781260159363
Author:Martin, Terry R., Prentice-craver, Cynthia
Publisher:McGraw-Hill Publishing Co.
Text book image
Inquiry Into Life (16th Edition)
Biology
ISBN:9781260231700
Author:Sylvia S. Mader, Michael Windelspecht
Publisher:McGraw Hill Education
The Integumentary System, Part 1 - Skin Deep: Crash Course Anatomy & Physiology #6; Author: CrashCourse;https://www.youtube.com/watch?v=Orumw-PyNjw;License: Standard youtube license