Lecture 23 Flashcards
What does the large intestine consist of?
- Cecum
- Colon
- Rectum
What is the colon divided into?
- Ascending
- Descending
- Transverse
- Sigmoid
The ascending and descending colon are ____________
Retroperitoneal
The transverse and sigmoidal colon are _________
Intraperitoneal
What does the ileocecal valve do?
Regulates the passage of material into the cecum
Where is the appendix located?
It has a variety of locations
What is the teniae coli in the large intestine?
3 bands of longitudinal smooth muscle
What are the haustra in the large intestine
Series of pouches in the wall of the colon
What are the omental appendices
Sacs of fat
________invaginates to form intestinal glands
Mucosa
Epithelium in the anal columns
Simple columnar
Epithelium of the anal canal
Stratified squamous
What is the internal anal sphincter made of?
Smooth muscle, under involuntary control
What is the external anal sphincter
Skeletal muscle, under voluntary control
What does the movement of feces into the rectum stimulate?
Stretch receptors