Human Body (Body Cavities) Flashcards
• Any fluid-filled space in a multicellular organism other than those of vessels
BODY CAVITIES
Human body cavity refers to the ventral body cavity because it is ___
largest
Body cavity contains
fluid
Why cavity contains fluid?
form of protection
Moves nutrients
2 essential functions of body cavity:
- Protect for our organs
* Permit changes in the size and shape of internal organs
2 DORSAL BODY CAVITY (POSTERIOR)
CRANIAL CAVITY
SPINAL CAVITY
protects brain
Houses the brain
CRANIAL CAVITY
spinal cord
Houses the spinal cord
SPINAL CAVITY
Cranial cavity is protected by the
skull
Spinal cavity is protected by the
vertebrae
Heart and lungs
Houses heart, lungs, and other organs
• Cavity superior to the diaphragm
Thoracic cavity
Thoracic cavity is protected by the
ribs
• Cavity inferior to the diaphragm
Abdominopelvic cavity
superior cavity that contains the stomach, liver, and other organs
abdominal cavity
abdominal cavity protected only by
trunk muscles
inferior cavity that contains reproductive organs, bladder, and rectum
pelvic cavity
pelvic cavity protected only by
bony pelvis
4 quadrants of Abdominopelvic Cavity Subdivisions
RUQ, RLQ, LLQ, LUQ
right upper quadrant(RUQ)
right lower quadrant (RLQ)
left lower quadrant (LLQ)
left upper quadrant (LUQ)
9 regions of Abdominopelvic Cavity Subdivisions
right hypochondriac
right lumbar
right illiac
epigastric
umbilical
hypogastric (or pubic)
left hypochondriac
left lumbar
left illiac
liver, stomach, pancreas, duodenum
epigastric
spleen, colon, liver, left kidney, small intestine
left hypochondriac
gallbladder, liver, right kidney
right hypochondriac
naval, duodenum, colon, kidneys, major abdominal vessels
umbilical
descending colon, left kidney, small intestine
left lumbar
cecum, ascending colon, liver, right kidney, small intestine
right lumbar
urinary bladder, small intestine, sigmoid colon, female reproductive organs
hypogastric (or pubic)
small intestine, descending colon, sigmoid colon
left illiac
appendix, cecum, small intestine
right illiac