C4 - obj 7-9

Question 1

Describe the structure and function of cutaneous membranes

Answer 1

Structure: keratinized stratified squamous epithelium (epidermis) attached to a thick layer of areolar/dense connective tissue (dermis) which covers the body surface.

Function: protection/temp reg/sensation/metabolic funct/blood reservoir/excretion

Question 2

Describe the structure and function of mucous membranes

Answer 2

line passageways open to the exterior

Structure:  layers of epithelia (columnar/stratified squamous), 
lamina propria (areolar ct)
sometimes muscularis (smooth muscle)

Function: absorption, secretion, protection

Question 3

Describe the structure and function of serous membranes

Answer 3

line the insides of body cavities (parietal and visceral) that do not open to the exterior

Structure: layer of mesothelium (simple squamous) and
a layer of loose connective (areolar)

Function: minimize friction

Question 4

Parietal?

Answer 4

Petaining to the walls of a cavity

Question 5

Visceral?

Answer 5

Pertaining to an internal organ of the body or the inner part of a structure

Question 6

Define organ

Answer 6

Two or more tissues that carry out a specific function

Question 7

List examples of the regenerative capacity of different tissues (good-mod-weak)

Answer 7

Good - epithelial, bone
Moderate - smooth muscle, dense reg CT
Weak - cardiac muscle, nervous tissue in brain/spinal cord

Question 8

Pleurae

Answer 8

2 layers of serous membrane that line the thoracic cavity and cover the surface of the lung (pleurisy)

Question 9

Pericardium

Answer 9

Double layered sac enclosing the heart and forming its superficial layer; has fibrous and serous layers (pericarditis)

Question 10

Peritoneum

Answer 10

Serous membrane lining the interior of the abdominal cavity and covering the surfaces of the abdominal region (peritonitis)

Question 11

Serosa

Answer 11

The moist membrane found in closed ventral body cavities

Question 12

Outline the process of tissue repair involved in normal healing of a superficial wound.

Answer 12

Inflammation, organization restores blood supply, regeneration and fibrosis effect permanent repair

Question 13

Explain “inflammation”

Answer 13

severed vessels bleed, inflammatory chems released, local blood vessels become more permeable allowing wbc, fluid, clot proteins to seep in, clotting occurs

Question 14

Explain “organization restores blood supply”

Answer 14

Clot is replaced by granulation tissue which restores vascular supply, fibroblasts produce collagen fibers that bridge gap, macroph phago dead and dying cells and debris, surface epithelial multiply over granulation tissue

Question 15

Explain “regeneration and fibrosis effect permanent repair”

Answer 15

fibrosed area matures and contracts, epithlelium thickens, epithelium with underlying scar tissue is result.

Question 16

4 signs of inflammation

Answer 16

Redness, swelling (metabolic process of vasodilation) , pain, heat (metabolic process of increasing permeability)

Question 17

Steps in tissue repair?

Answer 17

Inflammation, organization restores blood supply, regeneration and fibrosis effect permanent repair