1. Directional orientation explains a particular view of a person.
Medial refers to the middle of the body.
Lateral refers to the sides of the body.
Superior, or cephalic, refers to a location near the head.
Inferior, or caudal, refers to a location near the feet.
Anterior, or ventral, refers to the front of the human body.
Posterior, or dorsal, refers to the back of the human body.

2. Directional planes are views of imaginary lines sliced through a person.
A sagittal section slices the body vertically into left and right sections.
A midsagittal section slices the body into equal left and right halves.
A frontal, or coronal, section slices the body vertically into anterior and posterior sections.
A transverse section slices the body horizontally into inferior and superior sections.

3. Body Regions and Cavities
Body regions are divided into general locations, abdominopelvic regions, and quadrants
Body regions are divided into general locations, abdominopelvic regions, and quadrants.
Abdominopelvic regions include nine sections that divide up the abdominal and pelvic portions of the body.
Quadrants section the abdominal region into four portions.
Chapter 1 – Overview of the Body

4. Body regions are divided into general locations, abdominopelvic regions, and quadrants.
Abdominopelvic regions include nine sections that divide up the abdominal and pelvic portions of the body.
Quadrants section the abdominal region into four portions.

5. Body Regions and Cavities
The human body is naturally divided into internal cavities
The human body is naturally divided into internal cavities.
The body cavities contain specific body structures.
Chapter 1 – Overview of the Body

6. 2 Main Cavities
1. Dorsal: (posterior)
2. Ventral: (anterior)
Dorsal Cavity has 2 cavities inside:
1. Cranial Cavity: formed by the skull, contains the brain.
2. Spinal or Vertebral Cavity: formed by the spine and contains the spinal cord.
Ventral Cavity
( 2 parts) separated by the diaphragm)
1. Thoracic: heart and lungs found here
2. Abdominal Cavity: liver, stomach, intestines