Integumentary System

Question 1

First layer of skin

Answer 1

Epidermis; superficial layer; provides protection; Langerhan’s Cells signal immune system; stratified squamous epithelium.

Question 2

Second layer of skin

Answer 2

Dermis; strength and toughness of skin; skin tone; supplied by arteries and they form a cutaneous plexus; supplied by afferent nerve endings that are sensitive to, touch, temperature, and pain.

Question 3

Third layer of skin

Answer 3

Subcutaneous tissue; composed of loose connective tissue and stored fat; contains sweat glands, superficial blood vessels, lymphatic vessels, and cutaneous nerves.

Question 4

Fourth layer of skin

Answer 4

Deep fascia; dense connective tissue that surrounds all structures, muscles, blood vessels, bone; forms compartments; compartmentalization allows for greater vascular pressure on venous system.