In: Nursing
(A) PLANES OF BODY:-
1. Coronal (frontal) plane:-
- it is a vertical plane running from side to side.
- it divides the body into anterior and posterior portions.
2. Sagittal (lateral) plane:-
- it is a vertical plane running from front to back.
- it divides the body or any of its parts into right and left
sides.
3. Axial(transverse) plane:-
-it is a horizontal plane.
-it divides the body or any of its parts into upper and lower
parts.
4. Median plane:- Sagittal plane through the midline of the
body.
- it divides the body or any of its parts into right and left
halves.
(B) BODY CAVITIES AND THEIR ORGANS:-
1. THORACIC CAVITY:-
- it is bounded laterally by the ribs and the diaphragm
caudally.
- It contains the heart, lungs, trachea, esophagus, large blood
vessels, and nerves.
2. ABDOMINAL CAVITY:-
- It is bounded cranially by the diaphragm, laterally by the body
wall, and caudally by the pelvic cavity.
- it contains most of the GIT, kidneys and adrenal glands.
3. PELVIC CAVITY:-
- It is bounded cranially by the abdominal cavity, dorsally by the
sacrum, and laterally by the pelvis.
- The pelvic cavity contains most of the urogenital system as well
as the rectum.
4. DORSAL CAVITY:-
-It contains organs lying more posterior in the body.
-it can be divided into two portions.
(i) upper portion (cranial cavity)- contain
brain,
(ii) lower portion (vertebral canal)- contain spinal cord.