L38: Pelvis I Flashcards Preview

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Flashcards in L38: Pelvis I Deck (60)
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1

Body walls are heterogeneous stratifications of different _____?

Tissue layers

2

Pelvis is?

Dorsal, ventral, and lateral walls of pelvic cavity

3

Perineum?

Caudal wall of the pelvic cavity

4

What is boney pelvis consists of?

2 coxal bones + sacrum + 3-7 caudal vertebrae

5

What is pelvic girdle composed of?

2 coxal bones

6

What is coxal bone composed of?

ilium + pubis + ischium

7

Pelvic inlet vs pelvic outlet?

Pelvic inlet: pelvic entrance on border
Pelvic outlet: space used to peritoneal

8

Coxal bones act as external ____?

Hallmarks

9

Sacral tuber is known as point of the ____?

Croup

10

Coxal tuber is known as point of the __?

Hip

11

Ischial tuber is known as the point of the ____?

Butt

12

Acetabulum is called the _____joint?

Coxofemoral

13

Boney pelvis results from the contribution of which 4 joints?*

1. Sacro-iliac joint
2. Pubic symphysis
3. Acetabulum
4. Intervertebral joints (sacral and caudal vertebrae)

14

The diarthrosis of sacro-iliac joint has _____ movement.

Limited

15

Sacro-iliac joint reinforced by several ligaments? (4)

1. Ventral sacro-iliac ligament
2. Dorsal sacro-iliac ligament
3. Lateral sacro " "
4. Sacrotuberous ligament

16

Amphiarhtrosis of pubic symphysis acts as?

acts as "glue" of 2 coxal bones

17

The sacrotuberous ligament in large animals is what?

The most lateral layer of the pellvic wall, medial the gluteal muscles

18

In pelvis, most outer wall is the ?

Sacrotuberous ligament, which is narrow band of tissue

19

The element that constitutes joint of horse tail include what two structures?

intervertebral discs and connective tissue sheath

20

The muscules of pelvic roof is called?

Sacrocaudalis ventralis

21

The pelvic diaphragm has 2 muscles- what are they?

- Levator ani
- Coccygeus

22

The muscles of the pelvic floor (ungulates) is what?

Obturator inernus

23

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)

24

What do the depressors of the tail do and what are they innervated by?

Flexion and lateral movements of the tail; caudal spinal nerve

25

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

26

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

27

What is the obturator internus innervated by and what is its action?

Innervated by ischiatic nerve
Action: rotates femur laterally

28

The levator ani of canivorans have what 3 bands in the levator ani? *

1. Iliococcygeus
2. Pubococcygeus
3. Puborectalis

29

The levator ani of canivorans are innervated by what nerves?

Caudal rectal and pudendal nerves

30

The levator ani of canivorans' action is what?

Flex tail laterally or ventrally (1and2 of 3 bands) and reduce partial prolapse of anus at defecation