Body Cavities

Question 1

Dorsal Body Cavity

Answer 1

Protects the nervous system. Contains the cranial cavity and vertebral cavity

Question 2

Ventral Body Cavity

Answer 2

Houses internal organs. Two subdivisions, Thoracic and Abdominopelvic cavities, separated by the diaphragm

Question 3

Cranial Cavity

Answer 3

Protects the brain, subdivision of the dorsal cavity

Question 4

Vertebral Cavity

Answer 4

Protects the spinal cord, subdivision of the dorsal cavity

Question 5

Thoracic Cavity

Answer 5

Contains the heart and lungs. Made up of pericardial cavity, pleural cavities x2, and mediastinum.

Part of the Ventral cavity

Question 6

Abdominopelvic cavity

Answer 6

Contains the Abdominal and Pelvic cavities.

Part of the Ventral cavity

Question 7

Abdominal Cavity

Answer 7

Contains stomach, intestines,spleen and liver.

Part of the Abdominopelvic cavity, which is part of the ventral cavity.

Question 8

Pelvic Cavity

Answer 8

Contains bladder, reproductive organs and rectum.

Part of the Abdominopelvic cavity, which is part of the ventral cavity.

Question 9

Pleural Cavities

Answer 9

Each one surrounds one lung.

Part of the Thoracic cavity, which is in the ventral cavity.

Question 10

Mediastinum

Answer 10

Contains the pericardial cavity and surrounds other thoracic organs, etc oesophagus,trachea.

In the Thoracic Cavity, which is in the Ventral Cavity

Question 11

Pericardial Cavity

Answer 11

Encloses the heart.

In the Mediastinum cavity, which is in the thoracic cavity, which is in the ventral cavity.

Question 12

Serosa (the serous membrane)

Answer 12

Thin double-layered membranes that cover surfaces in the ventral body cavity.
Parietal serosa lines internal body cavity wals, Visceral serosa covers internal organs. Layers separated by a small cavity filled with serous fluid. Fluid secreted by both membranes.

Question 13

Parietal Membrane (serosa)

Answer 13

Part of double membrane, outer side that lines internal body cavity walls

Question 14

Visceral Membrane (serosa)

Answer 14

Part of double membrane, inner side that covers internal organs.

Question 15

Pericardium

Answer 15

The membrane around the heart, made up of Parietal and Visceral Membranes and filled with serous fluid.

Question 16

Pleurae

Answer 16

Membranes around the lungs.

Question 17

Peritoneum

Answer 17

Membranes that line the abdominopelvic cavity

Question 18

Cavities exposed to the environment (other)

Answer 18

• Oral and digestive
• Nasal
• Orbital
• Middle ear

Question 19

Cavities not exposed to enviroment (other)

Answer 19

Synovial (cavities around joints)