skin

Question 1

Define dermatology?

Answer 1

It is deales with the study of skin, its nature, structure, and functions.

Question 2

Briefly describe healthy skin?

Answer 2

It should free of visible signs of disease infection or injury. It should be slightly moist, soft, and flexible. fine and grainy

Question 3

Name the main divisions of the skin and the layers within each division.

Answer 3

Epidermis

The dermis

Question 4

The stratum corneum:
#1

Answer 4

The outer layer of the skin, the cell are concisely be shed and replaced by cells coming to the surface under them

Question 5

Stratum lucid:
#2

Answer 5

The clear layer under the stratum corneum. The thicker on the hands and feet, because it clear light can pass through it.

Question 6

Stratum granulosum:
#3

Answer 6

It composed of cells that look like granules and are filled with keratin.

Question 7

Stratum spinosum:
#4

Answer 7

The spiny layer just above germinativum the spiny layer is where the process of skin cell shedding begins

Question 8

Stratum germinative:
#5

Answer 8

It the deepest of the epidermis. It produces new epidermis skin cells and is responsible for the growth of the epidermis. It contains a special cells melanocytes, which produces dark skin pigment called melanin.

Question 9

The papillary layer :
#1

Answer 9

it contains the dermal papillae, which are small cone-shaped elevation at the base of the hair follicles

Question 10

The reticular:
#2

Answer 10

It the deeper layer of the dermis that supplies the skin with all of its oxygen and nutrients.

• Fat cells
• Blood vessels
• Sebaceous glands (oil )
• Suboriferous glands ( sweat )
• Hair follicles
• Arrector pili muscles
• Nerve ending

Question 11

Subcutaneous tissue:
#3

Answer 11

Its the fatty tissue found below the dermis. It provides cushion for the skin.

Question 12

Epidermis: top layer of skin ( in-order )

Answer 12

stratum corneum
Stratum lucid
Stratum granulosum
Stratum spinosum
Stratum germinative

Question 13

The dermis: the bottom layer of skin ( in-order )

Answer 13

The papillary layer
The reticular
Subcutaneous tissue

Question 14

List the three types of nerve fibers found in the skin.

Answer 14

Motor nerve fibers:
are distributed to the arrector pili muscles attached to the hair follicles. Motor nerves carry impulses from the brain to the muscles.

Sensory nerve fibers:
they react to heat cool, touch pressure, and pain

Secretory nerve fibers:
are distributed to the sudoriferous (sweat ) and sebaceous glands (oil)

Question 15

Name the two types of glands contained within the skin and describe their functions.

Answer 15

the sudoriferous (sweat ):
so your body sweats out extra salt and chemicals from the body, the whole body has them, regulates body temperature and eliminates wastes from the body. 

sebaceous glands (oil): 
are connected to the hair follicles, there are found in the hole body expected the hands and feet. The face and scalp are where they are larger. They have little sacks with ducts that open into the follicle. These glands secrete sebum ( a fatty or oily substance )

Question 16

What are collagen and elastin?

Answer 16

in the dermis; there is collagen and elastin. There are made up of flexible protein fibers and they make 70% of the dermis.
Collagen: it gives the skin form and strength, when they are healthy they allow the skin to stretch, wrinkles and sagging are often the results of collagen fibers losing their strength.
Elastin: is a protein base similar to collagen that forms elastic tissue. It is interwoven with the collagen fibers. It gives the skin flexibility and elasticity.

Question 17

Explain how collagen and elastin can be weakened.

Answer 17

Collagen and elastin can be weakened due to age, lack of moisture, and developmental damage such as UV light or changes in weight.

Question 18

What are the six important functions of the skin?

Answer 18

1. Protection
2. Sensation: feeling, heat, cold, touch, pressure and pain.
3. Heat regulation
4. Excretion: getting ride of sweat
5. Secretion: produce of oil and lubes the skin making it soft.
6. absorption

Question 19

What are the six classes of nutrients the body needs and how are they obtained?

Answer 19

Carbohydrates 
Vitamins 
Fats 
Minerals 
Proteins 
Water 
All obtained by eating and drinking. Cant not be made by the body enough.

Question 20

What are the five basic food groups?

Answer 20

Grain
Dairy???????
Vegetables 
Protein foods 
Fruits

Question 21

Name four vitamins that can help the skin and describe how they help.

Answer 21

vitamin A, C, D, E

Question 22

Vitamin A:

Answer 22

helps with the health and function and repair of skin cells

Question 23

Vitamin C:

Answer 23

proper repair of skin and tissues. Speed up healing proses importing to help with the aging process, and help the production of collagen

Question 24

Vitamin D:

Answer 24

you need vitamin D for vitamin C and help rapid skin repair

Question 25

Vitamin E:

Answer 25

helps protect the skin from the harmful effect of sun UV light

Question 26

What is the one essential item that no person can live without and why is it essential to the skin and body?

Answer 26

Water: make the cells healthy helps get rid of toxins and wasted regulars the body temp and helps with proper digestion.