Chapter 6 Integumentary Sytsem

Question 1

Integumentary system

Answer 1

Consists of the skin, accessory structures and some muscles and nerves

Question 2

What is the body’s largest organ

Answer 2

Skin

Question 3

Dermatology

Answer 3

Medical specialty for diagnosis and treatment of integumentary symptom

Question 4

Epidermis

Answer 4

Superficial thin portion of skin composed of only epithelial tissue

Question 5

Dermis

Answer 5

Deeper thicker portion of skin composed of connective tissue and some muscle and nervous tissue

Question 6

5 layers of epidermis

Answer 6

1. Stratum cornerman-most superficial
   2.stratum lucidum
2. Stratum granulosum
   4, stratum spinosum
3. Stratum basale -deepest layer

Question 7

Keratinization

Answer 7

Formation of superficial layers of cells filled with keratin

Question 8

Papillary layer

Answer 8

Superficial layer of the dermis

Question 9

Reticular layer

Answer 9

Deeper layer of the dermis

Question 10

Subcutaneous layer

Answer 10

Contains veins and arteries, helps stabilize position of the skin

Question 11

Carotene

Answer 11

Yellow orange pigment that’s found in orange vegetables

Question 12

Melanin

Answer 12

Brown black pigment produced by melanocytes of the stratus germinativum

Question 13

Hermoglobin

Answer 13

Red pigment in the blood that carries oxygen

Question 14

Does the number of melanocytes vary in people

Answer 14

No only the amount of melanin being produced varies making people skin tones vary

Question 15

Albanian

Answer 15

Inability to produce melanin making skin appear white

Question 16

Jaundice

Answer 16

Skin appears yellow due to liver not breaking down pigment properly

Question 17

Freckles

Answer 17

Flat melanized patches

Question 18

Moles

Answer 18

Elevated melanized patches often with hair

Question 19

Hemangiomas

Answer 19

Birthmarks,noatcges of discoloured skin caused by benign tumor of dermal capillaries

Question 20

Hair

Answer 20

Composed of columns of dead kerantized cells bonded with proteins

Question 21

Medulla

Answer 21

Inner layer of hair

Question 22

Cortex

Answer 22

Middle layer of hair

Question 23

Cuticle

Answer 23

Outer layer of hair

Question 24

What surrounds the root of each hair

Answer 24

Hair follicle which has a bulb at its base

Question 25

Nails

Answer 25

Plates of tightly packed hard keratinized epidermal cells

Question 26

Nail root

Answer 26

Proximal portion of nail burried in a fold of skin

Question 27

Sebaceous glands

Answer 27

Secrete sebum, a mixture of fat cholesterol proteins salts and pheromones

Question 28

Acne

Answer 28

Bacterial inflammation of sebaceous glands

Question 29

Eccrine sweat glands

Answer 29

Secrete watery sweat with some solutes directly on the skin surface

Question 30

Apocrine sweat glands

Answer 30

Secrete watery substance but with some lipids and proteins released in hair follicles

Question 31

Ceruminous glands

Answer 31

Secrete cerumen-ear wax to protect the ear canal

Question 32

Mammary glands

Answer 32

Produce milk

Question 33

First degree burn

Answer 33

Involves only the epidermis

Question 34

Second degree burn

Answer 34

Destroys epidermis and possibly parts of the dermis

Question 35

Third degree burn

Answer 35

Destroys epidermis, dermis and possibly sub Q layer. Destroys nerve endings

Question 36

Skin graft

Answer 36

Used to regenerate skin in the case of severe burn