Anatomy+Physio: Test on Unit 3 (11/21)

Question 1

Function of the skin
T
V
P
A
S
S

Answer 1

T-Thermoregulation
V-Vitamin D production
P-Protection
A-Absorption of nutrients
S-Secretions
S-Sensations

Question 2

Physiology

Answer 2

Thermoregulation – sweat glands are distributed throughout the integumentary system to assist in cooling the body off in homeostasis

Question 3

Vitamin D

Answer 3

Vitamin D Synthesis – using sunlight, the skin is capable of creating Vitamin D for the body- Vit D is essential for healthy bones- Can’t absorb CALCIUM without it.

Question 4

Protection

Answer 4

• provides a barrier to fluid loss from the body; intact skin prevents the entry of microorganisms into the body; melanin absorbs UV, preventing harm to layers below
  -Protects the DNA in Keratinocytes
  -Protective Barrier

Question 5

Absorption

Answer 5

Medicine can be administered through the skin (patch).

Question 6

Secretions

Answer 6

Through exocrine glands and sebaceous glands
-WATER
-SEBUM- OIL TO LUBRICATE AND -WATERPROOF THE SKIN.
-SALTS- CHANGES pH OF SKIN —SURFACE TO INHIBIT BACTERIA
WASTE- NITROGEN WASTE

Question 7

Sensation

Answer 7

sensory receptors.

Question 8

Melanin+Melanocytes

Answer 8

Melanin is contained in Melanas

Question 9

How we Tan

Answer 9

When we put ourselves in the sun, its rays activate the cells that secrete melanin. This pigment absorbs the radiation and makes us brown. It’s a defence mechanism to DNA damage.

Question 10

Types of burns

Answer 10

First Degree Burn (first layer)
Kills superficial cells of epidermis
Injures deeper layers of epidermis, papillary dermis

Second Degree Burn (2 layers)
Kills superficial & deeper cells of epidermis, can affect dermis
Can injure reticular layer of dermis; does not affect accessory structures

Third Degree Burn (3 layers)
Kills all epidermal & dermal cells
Injures hypodermis, deeper tissues, organs

Question 11

Rule of nine

Answer 11

Rule of nine is a rule that allows emergency doctors able to quickly assess the degree and amount of your skin that is burned

Arms: each side is 4.5%
Head: each side is 4.5%
legs: each side is 9%
torso: each side is !8%

Question 12

Skin Cancer