body planes and cavities Flashcards
——- are cuts along imaginary lines known as ——-
sections, planes
Divides the body or organ into left and right parts.
This cut can be made anywhere along the body or organ, resulting in left and right portions of varying sizes.
SAGITTAL PLANE
Divides the body or organ into equal left and right parts.
FRONTAL (CORONAL) PLANE
This plane specifically cuts the body or organ into two symmetrical halves
MEDIAN (MID-SAGITTAL) PLANE
is a lengthwise cut that divides the body or organ into anterior (front) and posterior (back) parts.
This is also known as a coronal section
FRONTAL (CORONAL) PLANE
Two internal body cavities
Dorsal
Ventral
DORSAL BODY CAVITY consists of two subdivisions that are continuous with each other:
CRANIAL CAVITY
SPINAL CAVITY
is a horizontal cut that divides the body or organ into superior (upper) and inferior (lower) parts.
This is also referred to as a cross section.
TRANSVERSE (CROSS) PLANE
Located inside the skull, it houses and protects the brain.
CRANIAL CAVITY
Extends from the cranial cavity down to the end of the spinal cord.
The spinal cord, a continuation of the brain, is protected by the bony vertebrae that surround it.
SPINAL CAVITY
is much larger than the dorsal cavity and contains all structures within the chest and abdomen.
VENTRAL BODY CAVITY
VENTRAL BODY CAVITY is divided into two main subdivisions separated by the diaphragm:
THORACIC CAVITY
ABDOMINOPELVIC CAVITY
The superior portion, separated from the abdominal cavity by the diaphragm.
THORACIC CAVITY
It houses organs like the heart and lungs, which are protected by the ribcage.
THORACIC CAVITY
The ———, a central region within the thoracic cavity, separates the lungs and houses the heart, trachea, and other visceral organs.
mediastinum
Cavity inferior to the diaphragm
ABDOMINOPELVIC CAVITY
contains the stomach, liver, and other organs which are protected only by trunk muscles
Superior abdominal cavity
Contains the appendix, colon, small intestine, ureter, and major vein and artery to the right leg.
Right Lower Quadrant
contains reproductive organs, bladder, and rectum which are somewhat protected by the pony pelvis
Inferior pelvic cavity
ABDOMINOPELVIC CAVITY SUBDIVISIONS
4 QUADRANTS
Right Upper Quadrant
Left Upper Quadrant
Right Lower Quadrant
Left Lower Quadrant
Contains the liver, right kidney, gallbladder, a portion of the colon, and pancreas.
Right Upper Quadrant
Contains the stomach, left kidney, spleen, a portion of the colon, and pancreas.
Left Upper Quadrant
Contains the colon, small intestine, ureter, and major vein and artery to the left leg.
Left Lower Quadrant
9 REGIONS of abdominal cavity
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Right Hypochondriac Region
Epigastric Region
Left Hypochondriac Region
Right Lumbar Region
Umbilical Region
Left Lumbar Region
Right Iliac (Inguinal) Region
Hypogastric (Pubic) Region
Left Iliac (Inguinal) Region
Contains the liver, right kidney, gallbladder, and intestines.
Right Hypochondriac Region
