Integumentary system

Question 1

Skin

Answer 1

An aggregation of tissues that performs a certain function (organ)

Question 2

Skin Facts

Answer 2

Carries out a specialized function, Occupies (3000sq in) in area, also know as the cutaneous membrane.

Question 3

Skin functions

Answer 3

regulates body temperature, protection, sensory reception, excretion + secretion, synthesis and storage of nutrients, immunity

Question 4

what can change temperature

Answer 4

sweating, blood flow

Question 5

What vitamin does the skin produce

Answer 5

Vitamin D

Question 6

cells involved in immunity

Answer 6

Langerhans & Granstein cells

Question 7

Kerationocytes

Answer 7

cell responsible for waterproofing the skin

Question 8

Melanocytes

Answer 8

cell responsible for skin color

Question 9

Nonpigmented Granular Dendrocytes

Answer 9

cell Involved in immune response

Question 10

part of the epidermis that has 5 layer is called

Answer 10

“strata”

Question 11

5 layers of the epidermis

Answer 11

1.stratum corenum
2.stratum lucidum
3.stratum granulosum
4. stratum spinosum
5.stratum basale

Question 12

how is skin color determined

Answer 12

determined by the interaction of pigments in the Epidermis and the blood flow in the dermis

Question 13

carotene pigment

Answer 13

orange and yellow pigment

Question 14

melanin pigment

Answer 14

yellow brown or black pigment

Question 15

albinism

Answer 15

lack of melanin

Question 16

vitiligo

Answer 16

Patchy white spots due to loss of pigment.

Question 17

Keratinization

Answer 17

The synthesis of Vitamin D using skin pigment and small amounts of ultraviolet radiation

Question 18

Freckles

Answer 18

concentration of melanin in patches

Question 19

Melanoma

Answer 19

skin cancer

Question 20

Dermis

Answer 20

Contains numerous blood vessels, nerves, glands, and hair follicles. Also split into two divisions, papillary and reticular layer.

Question 21

papillary layer of dermis

Answer 21

Contains loose connective tissue, capillaries, nerves and Contains Fraction Ridges, and form fingerprints.

Question 22

reticular layer of dermis

Answer 22

has Strength, Extensibility, Elasticity. contains Striae- Silver/White streaks, (stretch marks) and Elastic & Collagen Fibers.

Question 23

hypodermis

Answer 23

Subcutaneous (fat) Layer, made of loose connective and adipose tissue

Question 24

hypodermis function

Answer 24

Allows the other layer to anchor to the body. is an Energy reserve & Shock Absorber. has Large Blood Vessels (good for administering needles) “hypodermic needle”.

Question 25

three types of cancer

Answer 25

basal cell carcinoma, squamous cell carcinoma, and malignant melanomas

Question 26

hair

Answer 26

Made of dead skin cells and protein

Question 27

hair function

Answer 27

Protects from heat and foreign objects, sensory

Question 28

Hair Follicle

Answer 28

Structure below the skin that produces hair.

Question 29

hair root

Answer 29

Portion of hair that anchors it to the skin.

Question 30

hair shaft

Answer 30

Portion that sticks out of the surface of the skin.

Question 31

Hair Papilla

Answer 31

Connective tissue containing capillaries and nerves.

Question 32

Arrector Pili

Answer 32

Smooth muscle around the follicle that allows hair to stand up

Question 33

nail

Answer 33

Plates of tightly packed, hard cells of the epidermis

Question 34

nail bed

Answer 34

Area of the epidermis directly under the cover of the nail

Question 35

nail root

Answer 35

Under the surface of the skin, its is a fold of epithelial tissue from the stratum corneum. Location of nail production.

Question 36

Cuticle

Answer 36

Exposed nail nearest to the nail root it is a portion of the stratum corneum that extends over the exposed nail

Question 37

lunula

Answer 37

Pale crescent shading near the cuticle

Question 38

three types of glands

Answer 38

oil, sweat, wax

Question 39

sebaceous gland(holocrine)

Answer 39

Oil gland that secretes a lipid onto the surface of the skin • Sebum • Acne

Question 40

two types of Sudoriferous Gland(sweat)

Answer 40

apocrine and merocrine

Question 41

apocrine

Answer 41

Discharge their product into the hair follicles in the armpit, around the nipples, and in the groin.

Question 42

mecrocrine

Answer 42

Discharge their product or secretion onto the surface of the skin.

Question 43

Abrasion

Answer 43

Results from scraping against a solid object, bleeding can be slight.

Question 44

incision

Answer 44

Linear cut produced by sharp objects, bleeding can be severe if deep vessels are damaged.

Question 45

laceration

Answer 45

Jagged, Irregular tear in the skin’s surface, bleeding can be severe, lacerations are prone to infection.

Question 46

puncture

Answer 46

Results from slender, pointed object piercing the epithelium. Little bleeding.