Lesson 10, Chapter 1

Question 1

Protection

Answer 1

A quality that skin has when it functions as a barrier

Question 2

Keratinocytes

Answer 2

Cells in the skin that secrete keratin

Question 3

Keratin

Answer 3

A substance in the skin that allows it to act as a physical barrier

Question 4

Dehydration

Answer 4

A lower than normal level of water in the body

Question 5

Temperature regulation

Answer 5

A quality that skin has to help keep your body temperature within a normal range

Question 6

Hypothalamus

Answer 6

A structure in the brain that detects the temperature of the blood that flows

Question 7

Constrict

Answer 7

Make smaller

Question 8

Frostbite

Answer 8

The freezing of tissues

Question 9

Dilate

Answer 9

Make larger

Question 10

Sweat glands

Answer 10

Glands in your skin that secrete water to cool you down

Question 11

Urea and ammonia

Answer 11

Waste products of the breakdown of proteins

Question 12

Vitamin D

Answer 12

A vitamin that the skin produces when exposed to uv rays

Question 13

Calcitriol

Answer 13

A hormone the kidneys produce from Vitamin D.

Question 14

Blood reservoir

Answer 14

An organ that contains more blood than it requires for its own needs.

Question 15

nternal hemorrhage

Answer 15

Internal bleeding.

Question 16

Sensory apparatus

Answer 16

An organ that detects sensation.

Question 17

Sensory receptors

Answer 17

Structures in the skin that detect sensations like pain, temperature, pressure, and touch.

Question 18

Tactile defensiveness

Answer 18

A condition that causes someone to be abnormally sensitive to touch.