Body Cavities Flashcards
What are the three body cavities?
Thoracic, abdominal, and pelvic
What is the membrane that lines the thoracic cavity called?
Pleura
Where is pleura found?
The thoracic cavity
What is the cranial boundary of the thoracic cavity?
Thoracic inlet
What is the dorsal boundary of the thoracic cavity?
Spinal muscles
What is the ventral boundary of the thoracic cavity?
Sternum
What is the caudal boundary of the thoracic cavity?
Diaphragm
What is the lateral boundary of the thoracic cavity?
Ribs
What is contained within the thoracic cavity?
- Heart
- Lungs
- Trachea
- Ribs
- Intercostal muscles
What is the membrane that lines the abdominal cavity called?
Peritoneum
Where is peritoneum found?
In the abdominal and pelvic cavities
What is the cranial boundary of the abdominal cavity?
Diaphragm
What is the dorsal boundary of the abdominal cavity?
Spinal muscles
What is the ventral boundary of the abdominal cavity?
Abdominal muscles
What is the lateral boundary of the abdominal cavity?
Abdominal muscles
What is the caudal boundary of the abdominal cavity?
Pelvic inlet
What is contained within the abdominal cavity?
- Digestive system
- Stomach
- Kidneys
- Reproductive system
- Spleen
- Urogenital
What membrane lines the pelvic cavity?
Peritoneum
What is the cranial boundary of the pelvic cavity?
Pelvic inlet
What is caudal the boundary of the pelvic cavity?
Opening of the caudal pelvis
What is the dorsal boundary of the pelvic cavity?
Sacrum/Spine
What is the ventral boundary of the pelvic cavity?
Pelvis (pubis/ischium)
What is contained within the pelvic cavity?
- Urinary bladder
- Prostrate
- Some reproductive organs
- Rectum
- Anal sacs
- Descending colon
How many body cavities do birds/reptiles have?
One
