Week 1 Body Cavities

Body Cavities

Compartments in the human body that house and protect internal organs.

Transverse Plane

A horizontal plane that divides the body into superior (above) and inferior (below) portions.

Sagittal Plane

A vertical plane that separates the body into left and right portions.

Coronal Plane

Also known as the frontal plane; separates the body into anterior (front) and posterior (back) portions.

Ventral Cavity

Contains the thoracic and abdominopelvic cavities.

Dorsal Cavity

Contains the cranial and vertebral cavities.

Abdominopelvic Quadrants

Divided into four quadrants: RUQ, LUQ, RLQ, LLQ.

Pleurae

Double-layered serous membrane surrounding the lungs.

Pericardial Cavity

Cavity that surrounds the heart.

Umbilical Region

Located at the center of the abdomen surrounding the umbilicus.

Epi- (prefix)

Means 'above'.

Hypo- (prefix)

Means 'below'.

Appendicitis

Inflammation of the appendix, often presenting with RLQ pain.

Diverticulitis

Condition involving pouch-like herniations in the colon, commonly affecting LLQ.

Plane (in anatomy)

An imaginary flat surface that separates organs or structures.

Section (in anatomy)

The portion or slice of the body formed by cutting along a plane.

Imaging Techniques

Techniques such as CT and MRI that rely on body planes.

Mediastinum

The central compartment of the thoracic cavity which contains the heart and major vessels.

Quadrant

One of the four sections of the abdominopelvic cavity.

Thoracic Cavity

Contains the heart and lungs.

Abdominal Cavity

Contains the stomach, intestines, spleen, and liver.

Pelvic Cavity

Contains urinary bladder, reproductive organs, and rectum.

The thoracic and abdominopelvic cavities are separated by the ——-

Diaphragm

Parietal layer

Lines cavity

Visceral layer

Covers organ