integumantary system #2

Question 1

What is the primary function of hair

Answer 1

Prectection

Question 2

is the shaft of the hair living or dead cells

Answer 2

dead

Question 3

Is the hair follicle part of the dermis or epidermis?

Answer 3

epidermis, while most is located in the dermis, it is surrounded by epidermal cells (part of stratum basale)

Question 4

Anatomy of a hair folicle from most superficial to deepest

Answer 4

Shaft
Root
Bulb

Question 5

Pulls hair so it goes more straight up. Can be stimulated in response to emotional states such as fear or rage. Also stimulated in the cold

Answer 5

Arrector pili muscle

Question 6

What can hair help with

Answer 6

protection
heat retention
facial expression
visual identification
chemical signal dispersal (phermones)

Question 7

Where are phermones released

Answer 7

hair (pili)

Question 8

what organ in the nose picks up the scent of phermones

Answer 8

vomernasal organ

Question 9

What do phermones do

Answer 9

aide in sexual attraction
help with syncing of menstrual cycles

Question 10

What causes white or grey hair

Answer 10

caused by lack of melanin in stratum basal when hair is being formed in the hair follicle

Question 11

What causes different types of hair color

Answer 11

the different cells in the stratum basale

Question 12

What can cause hair loss

Answer 12

dietary deficiencies
high fever
radiation
drugs
genetics
changes in hormonal levels
aging

Question 13

These produce sweat to help regulate body tempurature

Answer 13

sudoriferous glands

Question 14

These produce milk

Answer 14

mammary glands

Question 15

this is the hormone that causes the body to produce milk in the mammary glands

Answer 15

prolactin

Question 16

These produce cerumin (ear wax) and help ear cannal stay hydrated and moist

Answer 16

Ceruminous glands

Question 17

These make sebum to keep hair supple and in good condition

Answer 17

Sebaceous glands

Question 18

What are some causes of burns

Answer 18

heat
radiation
chemicals
electricity

Question 19

Signs of a superficial (first-degree) burn

Answer 19

blanching in the skin
pain
vasodilation
redness due to more blood flow in area

Question 20

Signs of partial thickness (second-degree) burns

Answer 20

burn through the epidermis
very painful
blisters
fluid rushes to area
redness

Question 21

Signs of full-thickness (third-degree) burns

Answer 21

-Burn through epidermal and dermal layers
-not painful due to nerve endings in dermis being burned
-have to worry about fluid retention and infection

-usually a skin graft is needed

Question 22

What is a skin graft

Answer 22

taking healthy skin from area of body and placing it in burned/damaged area

Question 23

What are the 2 ways that damaged tissues are usually repaired in the body

Answer 23

Regeneration
Fibrosis

Question 24

Regeneration healing

Answer 24

replacement of damaged or dead cells with same cell type

Question 25

Fibrosis healing

Answer 25

when regeneration is not possible because part of the organ is too severely damaged or its cells lack the capacity to divide, the body fills in the gap with scar tissue in a process known as “fibrosis”

Question 26

what is granulation tissue

Answer 26

tissue that fills in the gaps of deeper wounds

Question 27

3 ways how to keep a wound healing

Answer 27

warm
moist
clean

Question 28

this disease is often caused by the bacterium staphylococcus aureus

Answer 28

Impetigo

Question 29

this is occationally confused with intentionally caused burns, but it is actually caused by the bacterium staphylococcus aureus

Answer 29

Scalded skin syndrome

Question 30

What are some causes that aging has on the skin

Answer 30

thin skin
sag
wrinkle
more susceptible to infection
become drier
more susceptible to skin cancer
hairs lose their pigmentation

Question 31

Liver spots

Answer 31

benign growth of melanocytes