Test 2- Study Guide

Question 1

cutaneous membrane– two main components

Answer 1

epidermis and dermis

Question 2

superficial layer; keratinized stratified squamous epithelium resting on basement membrane

Answer 2

epidermis

Question 3

deep to epidermis and basement membrane; loose connective tissue and dense irregular connective tissue

Answer 3

dermis

Question 4

accessory structures embedded in cutaneous membrane

Answer 4

sweat glands, sebaceous glands, hair, and nails

Question 5

is avascular, relies on diffusion of oxygen and nutrients from blood vessels in deeper dermis;

Answer 5

epidermis

Question 6

about 50% of ____ cells are too far from adequate blood supply to sustain life; superficial layers are made up entirely of dead cells

Answer 6

epidermis

Question 7

deep to dermis, not part of skin; anchors skin to deeper structures like muscles and bone; made of loose connective and adipose tissue; has abundant blood supply

Answer 7

hypodermis

Question 8

relies on negative feedback loops for maintenance of stable internal temperature

Answer 8

thermoregulation

Question 9

internal body temperature is determined mostly by:

Answer 9

muscle activity and chemical reactions (metabolism)

Question 10

detects increase in body temperature in skin and internal body fluids

Answer 10

sensory receptors (thermoreceptors)

Question 11

_____ in hypothalamus acts as thermostat (______ _____ ); receives input from thermoreceptors; process and responds to inputs

Answer 11

control center, thermoregulatory center

Question 12

sweating glands are stimulated to release sweat; water carrier heat when its evaporates, so evaporating sweat produces cooling effect

Answer 12

control center stimulates sweating