SEELEY'S ANATOMY+PHYSIOLOGY
12th Edition
ISBN: 9781260172195
Author: VanPutte
Publisher: RENT MCG
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Chapter 5, Problem 7RAC
Summary Introduction
Introduction:
The skin is composed of two main tissue layers: the epidermis and the dermis. The epidermis is the outer layer of the skin and composed of stratified squamous epithelial tissue. The dermis is a layer of connective tissue on which the epidermis rests.
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The function of melanin in the skin is toa. lubricate the skin.b. prevent skin infections.c. protect the skin from ultraviolet light.d. reduce water loss.e. help regulate body temperature
In addition to protection (physical and chemical barrier), the skin serves other functions. Which of the following is another vital function of the skin?
a.It absorbs vitamin C so that the skin will not be subject to diseases.
b.The cells of the epidermis store glucose as glycogen for energy.
c.It aids in the transport of materials throughout the body.
d.It converts modified epidermal cholesterol to a vitamin D precursor important to calcium metabolism.
As individuals age, the number of collagen fibers that are found in the dermis of
the skin decreases. What are the results of decreased collagen fibers in the
dermis?
Select all that apply.
A
The skin loses firmness and becomes wrinkled
B The skin develops necrosis and slowly begins to die.
C The inflammation levels in the skin increase drastically.
The wound healing process in the skin is slower.
Chapter 5 Solutions
SEELEY'S ANATOMY+PHYSIOLOGY
Ch. 5.1 - Provide on example for each function of the...Ch. 5.2 - From deepest to most superficial, name and...Ch. 5.2 - Prob. 3AYPCh. 5.2 - Prob. 4AYPCh. 5.2 - Prob. 5AYPCh. 5.2 - How do gentic factors, exposure to sunlight, and...Ch. 5.2 - How do carotene, blood flow, oxygen content, and...Ch. 5.2 - Prob. 8AYPCh. 5.2 - Prob. 9AYPCh. 5.2 - What are cleavage lines, and how are they related...
Ch. 5.3 - Name the types of tissue forming the subcutaneous...Ch. 5.3 - Prob. 12AYPCh. 5.3 - Prob. 13AYPCh. 5.4 - When and where are Ianugo, vellus, and found in...Ch. 5.4 - Prob. 15AYPCh. 5.4 - Prob. 16AYPCh. 5.4 - Describe the ports of a hair follicle. How the...Ch. 5.4 - Prob. 18AYPCh. 5.4 - Prob. 19AYPCh. 5.4 - Prob. 20AYPCh. 5.4 - Prob. 21AYPCh. 5.4 - Which glands of the skin are responsible for...Ch. 5.4 - Name the ports of a nail. Which Port produces most...Ch. 5.4 - Prob. 24AYPCh. 5.5 - In what ways does the skin provide protection?Ch. 5.5 - Prob. 26AYPCh. 5.5 - Prob. 27AYPCh. 5.5 - Prob. 28AYPCh. 5.5 - Prob. 29AYPCh. 5.6 - Prob. 30AYPCh. 5.7 - Compared with young skin, why is aged skin more...Ch. 5.7 - Prob. 32AYPCh. 5.7 - Prob. 33AYPCh. 5.7 - Prob. 34AYPCh. 5 - If a splinter penetrates the skin of the palm of...Ch. 5 - Prob. 2RACCh. 5 - Prob. 3RACCh. 5 - Prob. 4RACCh. 5 - Prob. 5RACCh. 5 - Prob. 6RACCh. 5 - Prob. 7RACCh. 5 - Prob. 8RACCh. 5 - Prob. 9RACCh. 5 - Prob. 10RACCh. 5 - Prob. 11RACCh. 5 - Prob. 12RACCh. 5 - Prob. 13RACCh. 5 - Prob. 14RACCh. 5 - Prob. 15RACCh. 5 - Smooth muscles that are attached to hair follicles...Ch. 5 - Prob. 17RACCh. 5 - For questions 17-19, match the type of gland with...Ch. 5 - Prob. 19RACCh. 5 - Prob. 20RACCh. 5 - Prob. 21RACCh. 5 - Prob. 22RACCh. 5 - Which of these processes increase (s) heat loss...Ch. 5 - Prob. 24RACCh. 5 - The skin of infants is more easily penetrated and...Ch. 5 - Melanocytes are found primarily in the stratum...Ch. 5 - The rare of water loss from the skin of a hand was...Ch. 5 - It has been several weeks since George has...Ch. 5 - Prob. 5CTCh. 5 - Why are your eyelshes not a foot long? Your...Ch. 5 - Pulling on hair can be quite painful, hyet cutting...Ch. 5 - A patient has an ingrown toenail, in which the...Ch. 5 - Defend or refute the following statement:...Ch. 5 - Harry, age 55, went to a health fair and had a PSA...
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- Which one of the following is NOT a function of the integumentary system? a. Regulation of body temperature by controlling blood flow b. Protection against abrasion and UV light c. Excretion of small amounts of waste products d. Vitamin A production with exposure to UV light Detection of heat, cold, pressure, and pain sensationsarrow_forwardMark the following statements as true or false. If a statement is false, correct it to make a true statement.a. Melanocytes account for the bulk of the epidermis. b. Keratinocytes begin life in the stratum corneum and gradually are pushed into the stratum basale. c. Dendritic cells are phagocytes of the immune system that protect the skin and deeper tissues from invasion by pathogens. d. Merkel cells produce the pigment melaninarrow_forwardMark the following statements as true or false. If a statement is false, correct it to make a true statement. a. The primary skin pigment is melanin, which is derived from the amino acid tyrosine. b. Melanin is produced by melanocytes and covers the nuclei of neighboring dendritic cells. c. Carotene is a brown-black pigment that accumulates in the stratum corneum. d. Increased amounts of blood flowing through the dermis lead to pallor in the skin. e. Hemoglobin is a pigment found in red blood cells, and its color depends on the oxygen level of the blood.arrow_forward
- Which of the following statements about melanocytes and keratinocytes is true? a. Melanocytes are in the dermis and keratinocytes are in the epidermis b. Melanocytes produce pigment but keratinocytes do not. c. Both cell types produce waterproofing material. d. Both cell types divide and die as they move away from their blood supply.arrow_forwardWhich of the following skin cells alert the immune system to pathogens?a. fibroblastsb. melanocytesc. keratinocytesd. dendritic cellse. tactile cellsarrow_forwardWhich of the following associations is INCORRECT? A. Keratinocytes; found in the stratum spinosum B. Langerhans cells; immune cells C. Melanocytes; typically found in the stratum corneum D. Adipocytes; fat cells E. None of the abovearrow_forward
- Epidermis is a/an: Select one: a. Avascular layer for calcium absorption. b. Stratified layer with keratinocytes. c. Connective layer with collagen. d. Squamous layer with mucus. e. Vascular layer for vitamin D synthesis.arrow_forward1. A) A major function of the skin is protection from ______. A. abrasion B. ultraviolet light C. entry of a microorganism D. dehydration E. All of the above B) What is one important function of melanin? A. Resets the diurnal biological clock B. Increases the amount of blood vessels C. Causes the skin to become cooler D. Absorbs harmful radiation E. Strengthens the skin or eyes C) Most of the cells of the epidermis are ________________. A. fibroblasts B. keratinocytes C. macrophages D. Langerhans cells D) The epidermis is nourished by diffusion from capillaries in the ___________. A. papillary layer of the dermis B. hypodermis C. epidermis D. reticular layer of the dermis E) Cell division occurs in which layer of the epidermis? A. Stratum lucidum B. Stratum corneum C. Stratum basale D. Stratum granulosum F) Which of the following is NOT…arrow_forwardThe hands and feet experience high amounts of abrasion. It contains so called thick skin having 5 epidermal strata. Which epidermal layer in thick skin consists of non-dead cells? a. stratum corneum b. stratum lucidum c. stratum granulosum d. a and b e. a, b, and carrow_forward
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