Membranes and Epithelial Membranes

Question 1

What are the three epithelial membranes associated with the human body?

Answer 1

1. cutaneous; 2. mucous; 3. serous

Question 2

Of the three epithelial membranes which are dry and which are wet?

Answer 2

Cutaneous is a dry membrane and is the skin. Mucous and serous are wet membranes.

Question 3

What are membranes?

Answer 3

Flat sheets of tissue that cover or line a part of the body

Question 4

What does an epithelial membrane consist of?

Answer 4

An epithelial tissue bound to an underlying connective tissue layer. In other words the epithelial membrane is the combination of the epithelial tissue and underlying connective tissue.

Question 5

What is the cutaneous membrane?

Answer 5

Also known as skin, dry membrane, covers the external surface of the body.

Question 6

Describe the epidermis and dermis of the skin?

Answer 6

The epidermis is keratinized stratified squamous epithelium. The dermis is loose (areolar) connective tissue and dense irregular connective tissue.

Question 7

Generally what kind of body cavities do mucous membranes line?

Answer 7

Those that open directly to the exterior.

Question 8

What kind of exocrine glands are usually associated with mucous membranes?

Answer 8

Goblet cells

Question 9

What kind of loose connective tissue is always associated with mucous membranes?

Answer 9

Lamina propria

Question 10

What is another name for serous membranes?

Answer 10

Serosa

Question 11

What body cavities do serous membranes generally line?

Answer 11

Body cavities that do not open directly to the exterior and organs that lie within that cavity.

Question 12

Describe the two tissues associated with serous membranes?

Answer 12

Mesothelium (simple squamous epithelium) and underlying loose (areolar) connective tissue.

Question 13

Is the overall serous membrane relatively tick or thin?

Answer 13

Thin

Question 14

Organs within the ventral body cavity are called what?

Answer 14

Viscera

Question 15

What are the two names for serous membranes based on what they line?

Answer 15

Parietal and visceral

Question 16

Define a parietal layer.

Answer 16

Serous membrane that lines the walls of the cavity

Question 17

Define visceral layer.

Answer 17

Serous membrane that adheres to the surface of the organ

Question 18

What is located between the parietal and visceral layers to reduce friction when the viscera move?

Answer 18

A thin layer of serous fluid

Question 19

What does parietal pleura and visceral pleura line?

Answer 19

The pleural cavity and the lung’s external surface

Question 20

What does parietal pericardium and visceral pericardium line?

Answer 20

The lining of the pericardial cavity and the heart’s external surface

Question 21

What does the parietal peritoneum and visceral peritoneum line?

Answer 21

The lining of the abdominopelvic cavity and the external surface of the viscera located in the abdominopelvic cavity