Tissues/Integumentary System

Question 1

Integumentary system

Answer 1

consist; SKIN, HAIR, NAILS, sev. GLANDS

Question 2

Epidermis

Answer 2

OUTERMOST Superficial layer (Stratified squamous = PROTECTION)

Question 3

Stratum basale

Answer 3

single layer attached to Basement membrane; DEEPEST layer

Question 4

Melanocytes

Answer 4

cell; produce Melanin

Question 5

Melanin

Answer 5

skin Pigment from Melanocytes

Question 6

Stratum spinosum

Answer 6

layer; cells ABOVE the Strata basale

Question 7

Stratum granulosum

Answer 7

layer; Keratohyalin granules accumulate in cells

Question 8

Keratohyalin

Answer 8

Granule (Secretory vesicle) precursor of Keratin (locate; OUTERMOST Epidermis)

Question 9

Stratum lucidum

Answer 9

transparent band of flat DEAD Keratinocytes (locate; Thick Skin)

Question 10

Stratum corneum

Answer 10

tough OUTERMOST layer of KERATINIZED cells

Question 11

Keratinocytes

Answer 11

cells; produce Keratin

Question 12

Keratin

Answer 12

protein; PROTECTIVE

Question 13

Dermis

Answer 13

structural integrity of Skin

Question 14

Papillary Layer

Answer 14

Areolar C.T. w/Collagen & Elastic fibers

Question 15

Papillae

Answer 15

bumps; interlock w/Epidermis & provide Adhesion between 2 layers

Question 16

Reticular Layer

Answer 16

COLLAGEN fibers = STRENGTH & RESISLENCY to SKIN + ELASTIC fibers = STRETCH

Question 17

Tactile (Meissner) corpuscles

Answer 17

Light touch receptor; in UPPER Dermis

Question 18

Tactile (Merkel) discs

Answer 18

Light touch receptor; in UPPER Dermis & LOWER Dermis

Question 19

Lamellar (Pacinian) corpuscles

Answer 19

receptor; sense PRESSURE (Vibration, Skin)

Question 20

Warm/Cool receptors

Answer 20

sense TEMP. (in comfortable temp = both receptors FIRE)

Question 21

Pain receptors

Answer 21

Naked nerve endings; respond to ENVIRONMENTAL stimuli + skin temp. BEYOND range of receptors FIRE ( in DERMIS)

Question 22

Hypodermis

Answer 22

SUBCUTANEOUS layer; DEEP in Skin

Question 23

Sudoriferous (sweat) gland

Answer 23

ECCRINE & APOPCRINE glands produce SWEAT

Question 24

Merocrine (eccrine) gland

Answer 24

ECCRINE, TEMP. Sensitive (soles of FEET, PALM, FOREHEAD)

Question 25

Apopcrine sweat gland

Answer 25

Activate after PUBERTY- BO (ARMPITS, GROIN)

Question 26

Mammary gland

Answer 26

SWEAT glands that SECRETE Milk

Question 27

Ceruminous (earwax) gland

Answer 27

Modified APOPCRINE glands in OUTER ear canal, SECRETE Cerumen

Question 28

Sebaceous (oil) gland

Answer 28

SECRETE Oily material (Sebum)

Question 29

Sebum

Answer 29

Oily material

Question 30

Hair follicle

Answer 30

produce Kernatized cells

Question 31

Hair

Answer 31

produced by Hair follicles (Filamentous strands of DEAD Kernatized cells)

Question 32

Shaft

Answer 32

PROJECTS from Skin

Question 33

Root

Answer 33

DEEPER & enclosed by FOLLICLE

Question 34

Hair bulb

Answer 34

Actively GROWS

Question 35

Medulla

Answer 35

CENTRAL part of Hair

Question 36

Cortex

Answer 36

ENCLOSE Medulla

Question 37

Cuticle

Answer 37

ABOVE the Cortex

Question 38

Determinate hair

Answer 38

GROWS to certain LENGTH & STOPS

Question 39

Indeterminate hair

Answer 39

Cont. to GROW regardless of Length

Question 40

Piloerector muscle

Answer 40

(Arrector pili) SMOOTH muscle attaching to follicle to Dermis (Contract to cause GOOSE bumps)

Question 41

Nail body

Answer 41

Visbile ATTACHED part of Nail

Question 42

Free Edge

Answer 42

OVERHANGS the Fingertip

Question 43

Eponychium

Answer 43

CUTICLE, Thickened layer of Skin at BASE of Nail

Question 44

Nail root

Answer 44

UNDERNEATH Eponychium, area that Produces rest of Nail BODY

Question 45

Nail bed

Answer 45

layer; DEEP to Nail body

Question 46

Lunule

Answer 46

Small White Crescent(Base of Nail)

Question 47

Hypochium

Answer 47

area UNDER Free edge of Nail

Question 48

Nail groove

Answer 48

on each SIDE of Nail

Question 49

Nail fold

Answer 49

RIDGE Above Groove