Integumentary System

Question 1

integumentary system consists of …

Answer 1

nails, hair, sweat glands, and sebaceous glands

Question 2

what are the 2 layers of the cutaneous?

Answer 2

dermis and epidermis

Question 3

What is the name of the layer that deals with fat storage?

Answer 3

subcutaneous layer (hypodermis)

Question 4

What is the largest organ in the body?

Answer 4

skin

Question 5

What types of tissues does the integument consist of?

Answer 5

epithelial
connective
smooth
nervous

Question 6

the _____________ tissue serves to protects underlying body layer

Answer 6

epithelial

Question 7

the ________________ tissues contain blood vessels that provide nutrients, strength, and resilience to the skin

Answer 7

connective

Question 8

the _______________ muscle tissue controls both blood vessel diameter and hair position

Answer 8

smooth

Question 9

the _______________________ tissue supports and monitors sensory receptors in the skin

Answer 9

nervous

Question 10

skin is water __________________, but not water ___________.

Answer 10

resistant
proof

Question 11

The two distinct layers of the skin are the epidermis and dermis. The layer of __________________________ __________________ epithelium is epidermis. Then the dermis is the deeper layer of dense __________________ __________________ tissue.

Answer 11

stratified squamous

irregular connective

Question 12

deep to the dermis is a layer of areolar and adipose connective tissue called the subcutaneous layer, or __________________

Answer 12

hypodermis

Question 13

What are the 5 layers of the epidermis?

Answer 13

TOP

stratum corneum
stratum lucidum
stratum granulosum
stratum spinosum
stratum basale

BOTTOM

Question 14

What layer is where cells are created and are one cell layer thick?

Answer 14

stratum basale

Question 15

What layer is made up of keratinocytes and varies on size or depth depending on location (2-5/7 layers thick)

Answer 15

stratum spinosum

Question 16

what layer is more block-like and is 3-5 cell layers? Transformation of live to dead cells…

Answer 16

stratum granulosum

Question 17

what layer is more water resistant and above the granulosum? Cells are flatter when cells die

Answer 17

stratum lucidum

Question 18

What is the most impermeable layer and very thick?

Answer 18

stratum corneum

Question 19

How many weeks would it take for a wound to heal?

Answer 19

4 weeks

Question 20

What is a melanocyte and where is it?

Answer 20

produces melanin (pigment)
spinosum

Question 21

what is an epidermal dendritic (langerhans) cell and where is it?

Answer 21

helps fight infections and localized immune response

spinosum

Question 22

What are tactile and merkel cells and where are they?

Answer 22

pain perception and pressure (touch)

spinosum

Question 23

Where is thick skin found and what does it not have?

Answer 23

palms and soles

no hair

Question 24

TRUE OR FALSE

All 5 epidermal strata are in the thick skin

Answer 24

TRUE

Question 25

What layer does the thin skin lack? What does it contain then?

Answer 25

stratum lucidum hair follicles, sebaceous glands, and sweat glands

Question 26

Functions of skin:

Answer 26

Protection prevention of water loss temp regulation metabolic regulation immune defense sensory reception excretion

Question 27

How does blood impact skin color?

Answer 27

working out = bring blood to skin to help with circulation skin = pale skin because blood is drawn to organs

Question 28

Where is melanin stored?

Answer 28

melanocytes

Question 29

how does carotene impact skin

Answer 29

orange

Question 30

what are Formed from large folds and valleys of both DERMAL and EPIDERMAL tissue?

Answer 30

FRICTION RIDGES Increase friction

Question 31

nevus/moles are created from ___________ while freckles are _____________________.

Answer 31

moles= over growth of melanocytes freckles - sun produces over production of melanin

Question 32

what are the 2 types of hemangioma?

Answer 32

capillary (strawberry) cavernous (port wine)

Question 33

what is composed of cells of connective tissue proper and primarily of collagen fibers, although both elastic and reticular fibers are also present. – Allows skin to stretch and gives form to skin

Answer 33

dermis

Question 34

Is the epidermis avascular or vascular?

Answer 34

avascular

Question 35

What is more superficial? Papillary layer or reticular layer?

Answer 35

papillary

Question 36

what are tension lines in the skin identify the predominant orientation of collagen fiber bundles

Answer 36

lines of cleavage

Question 37

What types of incisions heal more quickly? what is slow?

Answer 37

quickly = parallel slowly = perpendicular

Question 38

The dermis has extensive _________________. – monitor sensory receptors in the dermis and epidermis, and control both blood flow and gland secretion rates * _________________________________________________ cells perceive touch sensations, and work with a variety of other sensory nerve endings in the skin.

Answer 38

innervation Tactile corpuscles and tactile (Merkel)

Question 39

What are scale-like modification of epidermis?

Answer 39

nails

Question 40

nails are hard derivatives from the ______________________________ layer

Answer 40

stratum corneum layer (not individual cells)

Question 41

what is found almost everywhere on the body except the palms of the hands, the sides and soles of the feet, the lips, the sides of the fingers and toes, and portions of the external genitalia

Answer 41

hair

Question 42

Functions of hair:

Answer 42

protection hear retention facial expressions sensory reception visual identifications chemical signal dispersal (pheromone)

Question 43

hair color is the result of what?

Answer 43

the synthesis of melanin in the matrix adjacent to the papillae

Question 44

Loss of melanin in hair leads to ___________

Answer 44

gray hair

Question 45

what is another name for sudoriferous glands?

Answer 45

sweat

Question 46

what is the name for oil glands

Answer 46

sebaceous

Question 47

what glands produce ear wax?

Answer 47

ceruminous

Question 48

aging causes wrinkles and less resilience so...

Answer 48

immune response is diminished