| Question
|
Answer
|
Article
|
| Describe the position of the rectum.
|
- Dorsal to the reproductive organs, bladder and urethra
|
Link to Answer Article
|
| How is the rectogenital pouch formed?
|
- Reflection of the mesorectum onto the peritoneal peritoneum of the pelvic cavity
|
Link to Answer Article
|
| How is defeaction stimulated?
|
- Faeces in the rectum stimulate pressure sensitive cells which initiates the defeaction reflex
|
Link to Answer Article
|
| How is the conscious sensation for the need to empty the bowel produced?
|
- A forceful contraction of the rectum against the external anal sphincter
|
Link to Answer Article
|
| What happens if the conscious need to empty the bowel is ignored?
|
- The defeacation reflex is reduced until another mass movement occurs
|
Link to Answer Article
|
| What is the type of epithelium in the rectum?
|
|
Link to Answer Article
|
| What happens to the epithelium at the recto - anal junction?
|
- It changes from columnar to stratified squamous non-keratinised
|
Link to Answer Article
|
| What type of muscle forms external anal sphincter?
|
|
Link to Answer Article
|
| Which species appear to lack the ability to control the external anal sphincter?
|
- Ruminants and equine species
|
Link to Answer Article
|
