BIOS 251 Final Exam Study Guide
Anatomy Questions And Answers All Verified
List all functions of the integumentary system - Correct
... [Show More] Ans-Protection
Sensation
Temperature regulation
Excretion
Compare between thin and thick skin and identify the stratum is is only found in thick skin - Correct AnsThick skin contains the epidermis, dermis, and subcutaneous layer. The main difference between thick
and thin skin is in presence of stratum lucidum in thick skin. Stratum lucidum is a translucent layer of
flattened keratinocytes held together by desmosomes. The skin found on soles and palms.
Identify the types of fibers account for the strength and flexibility of the dermis - Correct Ans-A net-like
structure of elastin fibers and collagen fibers surrounds the reticular dermis. These fibers support your
skin's overall structure, as well as allow it to move and stretch.
Describe the composition of the following layers of tissue:
Epidermis
Dermis
Hypodermis - Correct Ans-Epidermis is the outermost and thinnest primary layer of skin composed of
several layers of stratified squamous epithelium.
Dermis is deeper and thicker of the two primary skin layers and composed largely of connective tissues.
Dermis is considered the "true layer" of skin.
Hypodermis is the bottom layer of skin in your body. The hypodermis contains collagen, fibers, adipose
tissue (fat cell), connective tissue, larger nerves and blood vessels. It also includes macrophages , cells
that are part of the immune system and help keep your body free of intruders.
Identify the functions of the following glands:
Eccrine glands
Sudoriferous glands
Merocrine glands
Apocrine glands
Sebaceous glands - Correct Ans-Eccrine glands are most numerous important, and widespread of the
sweat glands. They function throughout life and assist in body heat regulation.
Sudoriferous glands are that secrete sweat to the outside of the body(sweat glands); also assist in body
temperature regulation.
Merocrine glands release fluid through exocytosis
Ex: salivary glands
Apocrine glands are sweat glands in the groin and underarm areas that secrete thicker sweat, that
produce odor when come in contact with bacteria on the skin [Show Less]