Chapter 1 - Body Cavities

Question 0

Pleural cavities

Answer 0

hold the lungs, located in the thoracic cavity. Each is lined by the pleura, a slippery, serous membrane to reduce friction and allow lungs to expand/recoil.

Question 1

Thoracic cavity

Answer 1

Surrounded by the chest wall and diaphragm. Contains the lungs and heart; associated organs of respiratory, cardiovascular, and lymphatic systems; inferior portion of esophagus; thymus. Subdivided into left and right pleural cavities. Separated by the mediastinum.

Question 2

Mediastinum

Answer 2

Separates the left and right pleural cavities. A mass of connective tissue that surrounds, stabilizes and supports the esophagus, trachea, thymus, and major blood vessels going to the heart. Also contains the pericardial cavity.

Question 3

Pleura

Answer 3

The serous membrane lining each pleural cavity

Question 4

Visceral pleura

Answer 4

Covers the outer surface of the lungs

Question 5

Parietal pleura

Answer 5

covers the mediastinal surface and inner body wall (PARIAH)

Question 6

Pericardial cavity

Answer 6

A small chamber that surrounds the heart. Divided into visceral and parietal pericardium.

Question 7

Abdominopelvic cavity

Answer 7

Extends from diaphragm to pelvis. Subdivided into abdominal cavity (superior) and pelvic cavity (inferior). Contains the peritoneal cavity.

Question 8

Peritoneal cavity

Answer 8

a potential space located in the abdominopelvic cavity. Lined by a serous membrane, the peritoneum.

Question 9

Peritoneum

Answer 9

A serous membrane that forms the potential space of the peritoneal cavity.

Covers superior portion of urinary bladder, the ovaries and uterus in females.

Question 10

parietal peritoneum

Answer 10

Lines the inner surface of the body wall

Question 11

visceral peritoneum

Answer 11

coves the organs enclosed in the peritoneal cavity

Question 12

abdominal cavity

Answer 12

Extends from inferior surface of diaphragm to superior margins of the pelvis.

Contains:
Liver, stomach, spleen, small intestine, & most of large intestine

Question 13

Retroperitoneal organs

Answer 13

Kidneys, pancreas

Question 14

Pelvic cavity

Answer 14

Portion of ventral body cavity that is inferior to abdominal cavity. Walls are formed by the bones of pelvis. A layer of muscle forms the floor.

Contains:
urinary bladder, various reproductive organs, distal portion of large intestines, and inferior portion of peritoneal cavity.

Female: Ovaries and uterus (in peritoneal cavity)
Male: Prostate gland and seminal glands

Question 15

Infraperitoneal

Answer 15

Visceral structures which extend inferior to the peritoneal cavity.

Includes:
urinary bladder, distal portions of ureters and large intestines

Question 16

Viscera

Answer 16

The internal organs that are partially or completely enclosed by the body cavities

Question 17

What are the two functions of body cavities?

Answer 17

1. Protect delicate organs from shock and impact

2. Permit significant changes in size and shape of internal organs

Question 18

Coleom

Answer 18

Also called the Ventral Body Cavity. Appears early in embryological development, contains the organs of the respiratory, cardiovascular, digestive, urinary, and reproductive systems. Gradually subdivided into three chambers within the thoracic cavity, and one in the abdominopelvic cavity. (Fig. 1-9)