Integumentary system

Question 1

integumentary system elements

Answer 1

Hair, nails, sweat glands, sebaceous glands, mammary glands

Question 2

Cutaneous membrane

Answer 2

Epidermis
Dermis
papillary
reticular
hypodermis (not considered part of integument)

Question 3

Epidermis cells

Answer 3

Keratinocytes(produce tough protein)
melanocytes(melanin, pigment)
merkel cells (sensory)
langerhans (macrophages)

Question 4

layers of epidermis

Answer 4

Stratum corneum
Stratum lucidum
Stratum granulosum
Stratum spinosum
Stratum basale

Question 5

Stratum basale (Germinativum layer)

Answer 5

Deepest part of epidermis
Contains basal cells and melanocytes
Also contains Merkel cells where the body lacks hair
progenitor site
Forms the dermal ridges (finger prints)

Question 6

Stratum Spinosum

Answer 6

part of epidermis
Contains keratinocytes and langerhans cells

Question 7

Stratum Granulosum

Answer 7

part of epidermis
contains keratinocytes

Question 8

Stratum lucidum

Answer 8

part of epidermis only found in thick skin (palms and soles)

Question 9

Stratum corneum

Answer 9

Part of the epidermis
interlocking, dehydrated dead cells

Question 10

Papillary layer

Answer 10

Part of the Dermis
loose connective tissue
Capillaries
axons of neurons

Question 11

Reticular layer

Answer 11

Part of the Dermis
hair follicles and sensors
sweat and sebaceous glands
Blood vessels

Question 12

Stretch marks

Answer 12

When the elasticity of skin isn’t enough the reticular layer breaks

Question 13

Cutaneous plexus

Answer 13

Part of the dermis
made of veins and arteries
these brach and move superficially to make the sub papillary plexus

Question 14

Hypodermis/subcutaneous layer

Answer 14

Contains
Hair follicles, glands, nails
fat tissue and BV

Question 15

Hair structure

Answer 15

Pit that holds the Hair shaft, has sebaceous glands near surface and Arrector pili muscle.

Question 16

Lanugo Hair

Answer 16

unpigmented hair that only develops when born to 3 months

Question 17

Vellus hair

Answer 17

covers most of body

Question 18

Terminal hair

Answer 18

head, eyebrows and eyelashes

Question 19

Sweat glands

Answer 19

Apocrine
ceruminous
mammary
eccrine
All except eccrine secrete into hair follicles

Question 20

Sebaceous glands

Answer 20

Secrete sebum to lubricate
everywhere but thick skin
concentrated on upper back, face and forehead
main cause of ache

Question 21

Sebaceous follicles

Answer 21

large collection that secretes directly to skin not onto the hair follicles

Question 22

Apocrine glands

Answer 22

Sweat glands
secrete hormones (around armpit and nipples
made of myoepithelial cells

Question 23

Merocrine (eccrine) glands

Answer 23

sweat glands
secrete sweat to cool body direct to skin
found all over body in high conc in thick skin
made of myoepithelial cells

Question 24

Mammary glands

Answer 24

sweat glands sub apocrine type
produce milk

Question 25

Ceruminous glands

Answer 25

sweat glands sub apocrine type
secrete waxy substance in to ear canal

Question 26

hyponychium

Answer 26

skin right under the tip of the nail

Question 27

eponychium

Answer 27

cuticle skin

Question 28

lunula

Answer 28

white part of nail