Cavities And Membrane

Question 1

What are the main body cavities?

Answer 1

The main body cavities are the thoracic cavity, abdominal cavity, and pelvic cavity.

Each cavity contains specific organs and structures essential for bodily functions.

Question 2

What are the subdivisions of the thoracic cavity?

Answer 2

The thoracic cavity is divided into the pleural cavities and the mediastinum.

The pleural cavities contain the lungs, while the mediastinum contains the heart, trachea, and esophagus.

Question 3

Define mucous membranes.

Answer 3

Mucous membranes are epithelial tissues that secrete mucus and line body cavities that open to the exterior.

They are found in areas such as the digestive, respiratory, and urogenital tracts.

Question 4

What is the function of serous membranes?

Answer 4

Serous membranes reduce friction between organs and the body wall, providing lubrication.

They line the thoracic and abdominal cavities and cover the organs within them.

Question 5

Where are cutaneous membranes located?

Answer 5

Cutaneous membranes are located on the skin, covering the entire body surface.

They provide protection and help regulate body temperature.

Question 6

What are synovial membranes?

Answer 6

Synovial membranes are connective tissue membranes that line the cavities of joints.

They secrete synovial fluid, which lubricates and nourishes the joint.

Question 7

Fill in the blank: The _______ membranes are responsible for lining body cavities that open to the exterior.

Answer 7

mucous

Question 8

True or False: Serous membranes are found in the joints of the body.

Answer 8

False

Serous membranes line the thoracic and abdominal cavities, not joints.

Question 9

What is a major function of mucous membranes?

Answer 9

To secrete mucus, which lubricates and protects the underlying tissues.

This is especially important in areas exposed to pathogens and environmental stress.

Question 10

Identify the primary role of synovial fluid.

Answer 10

To lubricate joints and reduce friction during movement.

It also provides nutrients to the cartilage within the joint.

Question 11

What type of membrane covers the heart?

Answer 11

Serous membrane (specifically, the pericardium).

The pericardium consists of an outer fibrous layer and an inner serous layer that reduces friction.