Chapter 2

Dorsal body cavity

The space that lies within the skull and the spine

Ventral body cavity

Has more space and is the space in front of the body

Cranial cavity

The space inside the skull

What are the three innermost layers of the meninges from innermost to outermost

1. Pia Mater

2. Arachnoid

3. Dura Mater

Vertebral cavity

The space that contains the spine

What separates the superior and inferior portions of the ventral body cavity?

The inferior portion of the diaphragm

Thoracic cavity

Superior portion of the ventral body cavity

Mediastinum

Medial subdivision of the thoracic cavity. Contains the trachea and esophagus

Pleural cavities

The lateral portions of the mediastinum. Contains the lungs

Pericardial cavity

Cavity that surrounds the heart

abdominopelvic cavity

Inferior portion of the ventral body cavity

Abdominal cavity

Superior portion of the abdominopelvic cavity

Pelvic cavity

inferior portion of the abdominopelvic cavity

What organs are in the abdominal cavity?

• Stomach

• liver

• spleen

• pancreas

• intestines

• Kidneys

What are intraperitoneal organs called

They are organs that are covered by the visceral peritoneum completely

What are extraperitoneal organs

Organs that are not covered by visceral peritoneum

Extraperitoneal organs include

• Kidneys

• Adrenal gland

• Pancreas

What organs are in the pelvic cavity

• urinary bladder

• the rectum

• uterus

• ovaries

What cavities are located in the dorsal body cavity

• Cranial cavity

• Vertebral cavity

What cavities are located in the ventral body cavities

• Thoracic cavity

• Mediastinum cavity

• pericardial cavity

• pleural cavity

Cranial cavity

Contains the brain

Vertebral cavity

Contains the spinal cord

What cavity is in the mediastinum cavity?

The pericardial cavity

What organs are in the mediastinum

• Heart

• Trachea

• Esophagus

• Thymus Gland

• Great Vessels

What organ is specific to the Pericardial cavity

Contains the heart

What is the fibrous pericardium

The fibrous pericardium is the outermost layer of the pericardial sac that surrounds and protects the heart, providing structural support and preventing overexpansion.

Pleural cavity

Contains the lungs

Meninges

Membranes that wrap around the organs in the dorsal body cavity

Serous membrane

Membrane that wraps the organs of the ventral body cavity

Visceral serosa

the serous membrane that wraps the organs

Parietal serosa

The serous membrane that lines the body’s cavity wall

Serous fluid

Between the visceral serosa and parietal serosa. Lubricates the membranes

What are the membranes of the pericardial cavity called

visceral pericardium and parietal pericardium

What are the membranes of the pleural cavities called?

Visceral pleura and parietal pleura

What are the membranes of the abdominopelvic cavity called?

visceral peritoneum and parietal peritoneum

Mesenteries

Help the organs of the abdominopelvic cavity in place