Integument & Barriers to Infection

Question 1

The __________ is the hypodermis, dermis, and epidermis

Answer 1

Integument

Question 2

Thick skin has ______ layers while thin skin has ____ layers

Answer 2

5, 4

Question 3

The raised area between the dermis and epidermis is called

Answer 3

Dermal or epidermal ridges

Question 4

What are the 5 layers of the integument?

Answer 4

Stratum corneum, stratum lucidum (only in thick), stratum granulosum, stratum spinosum, stratum basale

Question 5

The most mitotically active layer is the stratum _________

Answer 5

Basale

Question 6

What 2 problems arise from basale?

Answer 6

Psoriasis and melanoma

Question 7

In the stratum _________, keratin aggregates to form _____________

Answer 7

Spinosum, tonofilaments

Question 8

The stratum spinosum and the stratum basale form the ______________ layer which is often the thickest layer

Answer 8

Malphigan

Question 9

The stratum ___________ is made of flattened cells that contain granules.

Answer 9

Granulosum

Question 10

_________ granules are basophil and cystine and histadine rich and assemble keratin into bundles

Answer 10

Keratohyalin

Question 11

________ granules are lipid rich and serve as a barrier to water and foreign material

Answer 11

Lamellar

Question 12

The stratum _________ is translucent and has no organelles

Answer 12

Lucidum

Question 13

The stratum __________ is made of fully keratinized cells called _________

Answer 13

Corneum, squames

Question 14

__________ produce keratin and house ___________

Answer 14

Keratinocytes, melanin

Question 15

__________ produce melanin and transfer it to keratinocytes.

Answer 15

Melanocytes

Question 16

_________ is a pigment that protein that protects nuclei from UV radiation

Answer 16

Melanin

Question 17

___________ helps produce melanin and is UV sensitive

Answer 17

Tyrosinase

Question 18

The most common cells in the stratum spinosum

Answer 18

Langerhans

Question 19

Langerhans cells function as

Answer 19

APC

Question 20

The ______ layer of the dermis is the superficial layer while the ________ layer is deeper

Answer 20

Papillary, reticular

Question 21

Free nerve endings are responsible for

Answer 21

Temperature, touch, itching, and pain

Question 22

_______________ are elliptical shaped and detect light touch or low frequency stimuli and are numerous in ______ ________ and _________

Answer 22

Meissner corpuscle, fingertips, palms, soles

Question 23

________________ are oval shaped and detect coarse touch, vibration, or pressure

Answer 23

Pacinian

Question 24

The ________ portion of glands produces what is going to be secreted while the _______ portion serves as a way to move it

Answer 24

Acinus, duct

Question 25

Sweat glands or sudoriferous glands are characterized as _________ ( ___________ ).

Answer 25

Eccrine, merocrine

Question 26

Sebaceous glands are associated with ____________

Answer 26

Hair follicle

Question 27

Sebaceous glands produce ________ via ___________ secretion

Answer 27

Sebum, holocrine

Question 28

Eccrine sweat produce sweat which is used for _________

Answer 28

Thermoregulation

Question 29

Apocrine glands use ____________ secretion which produces a milky sweat which responds to hormones

Answer 29

Merocrine

Question 30

The hair shaft is made of the _______ (the core of hair shaft), __________ (middle layer of hair shaft), and _____________(outer layer of hair shaft)

Answer 30

Medulla, cortex, cuticle

Question 31

The nail _______ is the most proximal region of the ______ _______. The _______ is crescent shaped white

Answer 31

Root, nail plate, lunula