Lab 7 Learning Issues

Question 1

tuber coxae and ischiatic tuberosity

Answer 1

indicate the slope of the pelvis

Question 2

greater trochanter of the femur

Answer 2

marks the position of the hip joint; hip joint is medial and ventral to greater trochanter

Question 3

what bursa is associated with the tendon of the accessory gluteal muscle

Answer 3

trochanteric bursa

Question 4

biceps femoris

Answer 4

Cd and sacral vertebrea sacrosciatic ligament and ischiatic tuberosity

Question 5

semitendinosus

Answer 5

Cd and sacral vertebrea sacrosciatic ligament and ischiatic tuberosity

Question 6

sacrosciatic ligament

Answer 6

sheet of strong connective tissue that completes the wall of the pelvis latearlly; arises dorsally from lateral border of the sacrum and transverse processes of first two cd vertebrea extends to ischial spine and tuber; leaves an opening between the latter two points is the lesser sciatic foramen; the greater sciatic foramen; cd border of sacrosciatic ligament is free and corresponds to sacrotuberous ligament to dog

Question 7

nerves of the sacral plexsus

Answer 7

ventral branches of sacral nerves, sciatic nerve, cranial and caudal gluteal nerve, caudal cutaneous femoral nerve, pudendal and caudal rectal, pelvic nerve

Question 8

ventral branches of sacral nerves

Answer 8

lies on both surfaces of the sacrosciatic ligament

Question 9

sciatic nerve

Answer 9

large; passes caudoventrally over gluteus profundus to disappear cd to hip jt; runs between ischiatic tuberosity and greater trochanter

Question 10

caudal gluteal nerve

Answer 10

arises from dorsal border of sciatic nerve and supplies superficial gluteal and proximal part of biceps; arises with caudal cutaneous femoral nerve which is smaller

Question 11

caudal cutaneous femoral nerve

Answer 11

arises with caudal gluteal nerve from dorsal border of sciatic passes caudoventrally and sends branch to semitendinosus and continues to cd surface of the thigh

Question 12

nerves traveling medial to sacrosciatic ligament

Answer 12

pudendal nerve (cranially) and caudal rectal nerve (caudally)

Question 13

nerves traveling lateral to sacrosciatic ligament

Answer 13

sciatic nerve, caudal gluteal nerve, which arises with smaller caudal cutaneous femoral nerve

Question 14

coccygeus

Answer 14

arises from apponeurotically from ischial spine and inserts on first few cd vertebrea and deep caudal fascia; lateral to levator ani

Question 15

levator ani

Answer 15

medial/ ventral to coccygeus; arises apponeurotically from ischial spine and inserts on and around anal canal

Question 16

cr gluteal nerve innervates

Answer 16

adductor, tensor fasciae latae, superficial gluteal, middle gluteal, deep gluteal

Question 17

caudal gluteal nerve innervates

Answer 17

superficial gluteal, vertebral head biceps femoris, vertebral head of semitenddinosus

Question 18

sciatic nerve innervates

Answer 18

pelvic head biceps femoris, pelvic head semitendinosus, semimembranosus

Question 19

pudendal nerve

Answer 19

from S[2]3-S4
sensory to rectum, perineal skink internal and external reproductive organs and motor to much of striated perineal musculature; skin of anus, vulva, and ventral perineal region; ventral part striated musculature of perineum, branches of skin of prepuce and scrotum and cd part of udder

Question 20

caudal rectal nerve

Answer 20

supply sensory fibers to rectum, anus, and perianal skin and motor fibers to dorsal perineal striated musculature including elevator ani

Question 21

caudal cutaneous femoral nerve

Answer 21

skin over cd aspect of thigh

Question 22

pelvic landmarks

Answer 22

tubercoxae (most cr), tuber sacrale (most dorsal), ischiadic tuberosity (v and most cd)

Question 23

femur landmarks

Answer 23

greater (most cr; lateral), lesser (medial), and 3rd trochanters (small mid dorsal femur, lateral)

Question 24

vessels associated with sacrosciatic ligament

Answer 24

med- cd gluteal artery, int pudendal artery, cd rectal artery