Flashcards in L38: Pelvis I Deck (60)
Body walls are heterogeneous stratifications of different _____?
Dorsal, ventral, and lateral walls of pelvic cavity
Caudal wall of the pelvic cavity
What is boney pelvis consists of?
2 coxal bones + sacrum + 3-7 caudal vertebrae
What is pelvic girdle composed of?
2 coxal bones
What is coxal bone composed of?
ilium + pubis + ischium
Pelvic inlet vs pelvic outlet?
Pelvic inlet: pelvic entrance on border
Pelvic outlet: space used to peritoneal
Coxal bones act as external ____?
Sacral tuber is known as point of the ____?
Coxal tuber is known as point of the __?
Ischial tuber is known as the point of the ____?
Acetabulum is called the _____joint?
Boney pelvis results from the contribution of which 4 joints?*
1. Sacro-iliac joint
2. Pubic symphysis
4. Intervertebral joints (sacral and caudal vertebrae)
The diarthrosis of sacro-iliac joint has _____ movement.
Sacro-iliac joint reinforced by several ligaments? (4)
1. Ventral sacro-iliac ligament
2. Dorsal sacro-iliac ligament
3. Lateral sacro " "
4. Sacrotuberous ligament
Amphiarhtrosis of pubic symphysis acts as?
acts as "glue" of 2 coxal bones
The sacrotuberous ligament in large animals is what?
The most lateral layer of the pellvic wall, medial the gluteal muscles
In pelvis, most outer wall is the ?
Sacrotuberous ligament, which is narrow band of tissue
The element that constitutes joint of horse tail include what two structures?
intervertebral discs and connective tissue sheath
The muscules of pelvic roof is called?
The pelvic diaphragm has 2 muscles- what are they?
- Levator ani
The muscles of the pelvic floor (ungulates) is what?
in the sacrocaudalis ventralis, there are two portions (depressors of the tail)- what are they?
1. Lateralis (long depressor of tail)
2. Medialis (short depressor of tail)
What do the depressors of the tail do and what are they innervated by?
Flexion and lateral movements of the tail; caudal spinal nerve
In pelvic diaphragm in ungulates, there are two structures (movement of tail) what are they and what is their mode of action?
1. Coccygeus: flexion and lateral movements of the tail
2. Levator ani: reduce partial prolapse of anus at defecation
In pelvic diaphragm in ungulates, there are two structures (movement of tail) what are they each innervated by?
- Coccygeus- Caudal rectal and pudendal nerves
- Levator ani- Caudal rectal and pudendal nerves
What is the obturator internus innervated by and what is its action?
Innervated by ischiatic nerve
Action: rotates femur laterally
The levator ani of canivorans have what 3 bands in the levator ani? *
The levator ani of canivorans are innervated by what nerves?
Caudal rectal and pudendal nerves