ch5 integumentary system and body membranes

Question 1

Body membranes

Answer 1

epithelial membranes and connective tissue membranes.

Question 2

Epithelial membrane types

Answer 2

cutaneous membrane ( skin)
serous membranes, and
mucous membranes.

Question 3

two types of serous membranes:

not open

Answer 3

parietal, which lines the walls of body cavities on the inside
visceral, which covers the organs found in body cavities.(its within the parietal)

Question 4

pleura have parietal and visceral layers..

Answer 4

in the thoracic cavity and cover the lungs.

Question 5

peritoneum has parietal and visceral layers…

Answer 5

which line the walls of the abdominal cavity

Question 6

Mucous membranes

Answer 6

line the body surfaces that open directly to the exterior. These produce mucus, which is a thick secretion that keeps the membranes soft and moist.
nose mouth vagina
cilia traps, protects, and projects to get rid of foriegn material

Question 7

Connective tissue membranes

Answer 7

lubricant called synovial fluid. Examples of these connective tissues are synovial membranes in spaces between joints and in the lining of bursal sacs. kneecap/patella

Question 8

The skin has two primary layers:

Answer 8

the epidermis is the outermost and thinnest primary layer of the skin.
and the dermis is composed largely of connective tissue.

Question 9

stratum germinativum

Answer 9

growth of new skin where mitosis occurs

is the innermost layer of cells that continually reproduce, pushing new cells toward the surface

Question 10

deepest epidermal layer is responsible for

Answer 10

production of the pigment, which gives color to the skin.

NOT subcutaneous tissue

Question 11

dermis

Answer 11

is composed largely of connective tissue.

also contains nerve endings, muscle fibers, hair follicles, sweat and sebaceous glands, and many blood vessels.

Question 12

upper papillary layer of the dermis

Answer 12

fingerprinting and improves grip for tool use and walking.

Question 13

Deeper reticular layers of the dermis

Answer 13

network of tough collagenous, and stretchable elastic fibers. it decreases with age and contributes to wrinkle formation.

Question 14

accessory structure of the skin

Answer 14

hair, nails, receptors of the skin

Question 15

lanugo

Answer 15

soft hair of a fetus and newborn is called

Question 16

arrector pili

Answer 16

is a specialized smooth muscle that produces goose bumps and causes hair to stand up straight

Question 17

Meissner corpuscle

Answer 17

allows the skin to be capable of detecting light touch

Question 18

Pacini corpuscle

Answer 18

allows the detection of pressure.

Question 19

nails

Answer 19

produced by epidermal cells
visible part is called the nail body
crescent-shaped is the lunula.
The nailbed may change color with a change in blood flow.

Question 20

two types of skin glands:

Answer 20

the sweat or sudoriferous glands and the sebaceous glands.

Question 21

Sweat glands are subsequently broken into

Answer 21

eccrine and apocrine sweat glands.

Question 22

eccrine sweat glands

Answer 22

produce perspiration and assists the body in heat regulation.

Question 23

Apocrine sweat glands

Answer 23

in the axilla and genitalia.
thicker secretion
breakdown by the skin bacteria that produces odor.

Question 24

Sebaceous glands

Answer 24

secrete oil or sebum for the hair and skin.

Question 25

The skin has three main functions.

Answer 25

protection first line of defense against infection by microbes, ultraviolet rays from the sun, harmful chemicals, and cuts and tear.
temperature regulation.3,000 calories of body heat per day.
skin is an enormous sense organ. environment.

Question 26

burns

Answer 26

The body is divided into 11 areas of 9% each.
first-degree burn/partial-thickness,only the surface layers of the epidermis.
second-degree burn partial-thickness burn and involves the deep epidermal layers and always causes injury to the upper layers of the dermis.
third-degree full-thickness burn complete destruction of the epidermis and dermis. may involve muscle and bone risk of infection is increased