THE SKIN

Question 1

Name three important functions of the skin.

Answer 1

keeps the body from dehydration, the suns rays, regulates body temperature.

Question 2

Name the three layers of the skin.

Answer 2

Epidermis, Dermis, lower subcutaneous layer.

Question 3

The Epidermis is divided into three layers:

Answer 3

The cornified layer, the granular layer, the basal layer .

Question 4

explain: the cornified layer

Answer 4

top layer made up of dead cells. contains keratin.

Question 5

explain; the granular layer

Answer 5

made of cells produced by the malphighian layer. it is a layer of dying cells.

Question 6

explain: the basal layer

Answer 6

intermost layer which produces new cells. cells contain melanin which protect us from the uv rays.

Question 7

The dermis is made up of connnective tissue, name them:

Answer 7

capillaries, sweat glands, sebaceous glands, sensory nerve cells, hair follicles.

Question 8

Function of capillaries

Answer 8

supply skin with food and oxygen and help control body temperature through hot and cold temperatures

Question 9

function of sweat glands

Answer 9

produces sweat which cools the body through evaporation.

Question 10

function of sebaceous glands

Answer 10

produce oily sebum that keeps the skin soft and supple and protects against the entry of bacteria and pathogens into the body.

Question 11

function of sensory nerve cells

Answer 11

to feel external stimuli such as pain, heat, touch.

Question 12

function of hair follicles

Answer 12

produce hairs that are made up of keratin. each hair originates from a follicle that produces a hair shaft.

Question 13

another name for the subcutaneous layer:

Answer 13

The Hypodermis

Question 14

function of the subcutaneous layer

Answer 14

consists of fatty tissue that is well supplied the blood vessels and nerves. this layer stores and releases fat in response to a variety of stimuli.