Integumentary

Question 1

Skin

Answer 1

. The skin, or cutaneous membrane, is a sheet-like organ composed of the Epidermis & Dermis.

Question 2

Epidermis

Answer 2

• the outermost layer of the skin consisting of a thin sheet of stratified squamous epithelium

Question 3

Dermis

Answer 3

– deeper and thicker than the epidermis and is largely made up of connective tissue

Question 4

subcutaneous tissue or hypodermis are…

Answer 4

The layers of the skin are supported by a thick layer of loose connective tissue and fat.

Question 5

FUNCTIONS OF THE SKIN - Protection

Answer 5

. first line of defense against disease-causing microbes
. keratin protects against physical tears, cuts, chemical injury ; prevents excessive fluid loss
. melanin absorbs UV rays from the sun

Question 6

FUNCTIONS OF THE SKIN - Temperature regulation

Answer 6

• through sweat evaporation and radiation

Question 7

FUNCTIONS OF THE SKIN - Sense Organ

Answer 7

receptors in the skin make it possible for the body to detect sensations of light touch, pressure, pain, heat & cold

Question 8

FUNCTIONS OF THE SKIN - Excretion

Answer 8

• of water and waste products (ammonia, uric acid, urea) is achieved through perspiration.

Question 9

FUNCTIONS OF THE SKIN - Synthesis of Vitamin D

Answer 9

• is another function of the skin. Vitamin D is necessary for the absorption of calcium in the gastrointestinal tract.