Body Cavities, Organs & Membranes (Questions - EXAM #2)

Question 1

What are body cavities?

Answer 1

Enclosed spaces that house and protect organs.

Question 2

What are the two main types of body cavities?

Answer 2

Dorsal body cavity and ventral body cavity.

Question 3

What are the components of the dorsal body cavity?

Answer 3

Cranial (head) cavity and vertebral cavity.

Question 4

Which organ is housed in the cranial cavity?

Answer 4

The brain.

Question 5

What is housed in the vertebral cavity?

Answer 5

The spinal cord.

Question 6

What are the subdivisions of the ventral body cavity?

Answer 6

Thoracic cavity, abdominal cavity, and pelvic cavity.

Question 7

What organs are found in the pericardial and pleural cavities?

Answer 7

The heart is in the pericardial cavity, and the lungs are in the pleural cavity.

Question 8

What organs are housed in the abdominal cavity?

Answer 8

Digestive organs

Question 9

What organs are found in the pelvic cavity?

Answer 9

The urinary bladder, reproductive organs, and rectum.

Question 10

What defines an organ?

Answer 10

An organ consists of two or more tissue types.

Question 11

How many major tissue types can an organ contain?

Answer 11

Many organs contain all four major tissue types: epithelial, connective, muscle, and nervous.

Question 12

What are membranes composed of?

Answer 12

Membranes consist of one or two tissue types, typically connective tissue with or without an attached epithelial tissue.

Question 13

What surfaces do membranes line?

Answer 13

Membranes line the inner and outer surfaces of the body and its organs.

Question 14

Where are mucous membranes found?

Answer 14

They line cavities of organs that open directly to the exterior, such as the digestive, respiratory, urinary, and reproductive systems.

Question 15

What are the two layers of mucous membranes?

Answer 15

The epithelial layer and the lamina propria.

Question 16

What is the function of goblet cells in mucous membranes?

Answer 16

Goblet cells secrete mucus.

Question 17

Where are serous membranes found?

Answer 17

They line closed body cavities like the abdominal and thoracic cavities.

Question 17

What is the lamina propria, and what is its role?

Answer 17

The lamina propria is a vascular connective tissue layer that nourishes epithelial cells.

Question 18

What are the two layers of serous membranes?

Answer 18

The parietal layer (against cavity wall) and the visceral layer (against organ).

Question 19

What fluid is secreted by serous membranes, and what is its purpose?

Answer 19

Serous fluid, which is slippery and reduces friction.

Question 20

What are the names of serous membranes based on location?

Answer 20

Pericardium (heart), pleura (lungs), and peritoneum (abdominal organs).

Question 21

Where are synovial membranes located?

Answer 21

In joints.

Question 22

What is unique about synovial membranes in terms of tissue type?

Answer 22

They consist of only one tissue type (areolar connective tissue) and have no epithelium

Question 23

Are synovial membranes considered organs?

Answer 23

No, because they contain only one tissue type.

Question 24

What type of epithelium makes up the skin?

Answer 24

Stratified squamous epithelium, also known as the epidermis.

Question 25

What types of connective tissue are found in the skin?

Answer 25

Areolar and dense irregular connective tissue, known as the dermis.