Seminar - Intro Flashcards
Name non-rodent characteristics of rabbits (5)
- Lighter skull structure
- Four incisors
- Enamel present on buccal and lingual surfaces of incisors
- Enamel is white
- All hypsodont teeth
Where are blood vessels located within the skin layers? What is unique about superficial fascia in the rabbit?
Immediately under the dermis (like the rat). Superficial fascia is well-differentiated due to elastic and dense collagen content (like mouse and GP)
How does the duodenum exit from the stomach? What is the clinical impact of this?
Exits at an acute angle. Prone to compression.
What characterizes lymphoid aggregates in the lamina propria?
Larger and more numerous distally
What is the structure of the ascending colon?
Long, coiled, with three taeniae forming three rows or sacculations.
Where is the fusus coli location?
Junction of transverse and distal colon.
What is the vertebral formula?
C7 T12 L7 S4 C16 (T 12-13, L 6-7)
Where do epaxial muscles attach?
Prominent Mamillary processes on lumbar vertebrae
How does the microstructure of bone differ from humans?
Vascular canals of osteons run parallel to long axis of bone, faster turnover.
How many lobes does the liver have? How is the rabbit unique?
Four lobes. Secretes large amount of bile.
Where is the gallbladder located?
Depression of caudal surface of right anterior lobule.
What does the rabbit gallbladder mainly secrete?
Biliverdin, instead of bilirubin like most mammals. Most non-mammals secrete biliverdin
What is the only laboratory animal with a single, separate pancreatic duct?
Rabbit
What does ligation of the pancreatic duct result in?
Distention of ductules and fibrosis, but does not eliminate proteolytic enzymes in duodenum. Maybe small pancreatic ducts that communicate with duodenum.
How is the rabbit kidney unique? (2)
- Renal tubules can be individually dissected with the basement membrane intact.
- Number of glomeruli increases after birth (like rat)
