Integumentary

Question 1

skin

Answer 1

the major organ of the integumentary system

Question 2

Functions of the integumentary system

Answer 2

Acting as a mini-excretory system; urea, salts, and water are lost when we sweat
Performing important metabolic duties, such as producing proteins important
to our immunity
Synthesizing vitamin D for the body
Containing the cutaneous sense organs (part of the nervous system that is in
the dermis), which allow us to sense and enjoy the external environment
Playing an important role in regulating heat loss from the body surface (a func-tion of its abundant capillary network under the control of the nervous system)

Question 3

The skin has two distinct regions—

Answer 3

the superficial epidermis composed of epi-thelium, and a underlying connective tissue dermis

Question 4

Immediately deep to the dermis

Answer 4

the hypo-dermis, or subcutaneous tissue (primarily adipose tissue),
which is not considered part of the skin.

Question 5

the avascular epidermis is a keratinized stratified
squamous epithelium consisting of four distinct cell types and
four or five distinct layers:

Answer 5

stratum basale, stratum spinosum (spinal), stratum granulosum (granular), stratum, lucidum, stratum corneum,