Vessels & Nerves of the Pelvic Limb Flashcards
Cranial thigh muscles
Extensor of stifle: quadriceps femoris
Cranial thigh muscles: a. and n. supply
A: lateral circumflex femoral
N: femoral
Medial thigh muscles
Adductors of pelvic limb: gracilis, adductor, pectineus
Medial thigh muscles: a. and n. supply
A: Deep and caudal femoral
N: Obturator
Caudal thigh muscles
Flexors and extensors of stifle: biceps femoris, semimembranosus and semitendinosus
Caudal thigh muscles: a. and n. supply
A: Deep/caudal femoral, caudal gluteal
N: Sciatic
Cranial muscles of crus
Flexors of tarsus: cranial tibial, peroneus longus
Extensors of digits: long digital extensor
Cranial muscles of crus: a. and n. supply
A: Cranial tibial
N: Common fibular
Caudal muscles of crus
Rotator of stifle: popliteus
Extensor of tarsus: gastrocnemius
Flexors of digits: super/deep digital flexors
Caudal muscles of crus: a. and n. supply
A: popliteal, distal caudal femoral
N: tibial
What is the vascular lacuna
A passageway allowing the ext. iliac a. to leave the abdominal cavity and enter the thigh
What point of the external iliac become the femoral
At the vascular lacuna, when going through the femoral triangle
Obturator n. arises from…
L4,5,6
Obturator n. innervates…
Gracilis, pectineus, adductor, and external obturator
Femoral n. arises from…
L4,5,6 and emerges through iliopsoas
Femoral n. innervates…
4 heads of quadriceps
What is a superficial branch of the femoral n.
Saphenous
What does the saphenous n. innervate
Medial side of limb and motor innervation to sartorius
Pudendal n. arises from…
S1,2,3
What 3 nerves make up the pudendal n.
Caudal rectal, perineal, and dorsal n. of penis
What does the pudendal n. carry?
Somatic motor fibers from anal & urethral voluntary sphincters and sensory fibers from anus, clitoris/penis
Caudal cutaneous femoral n. arises from…
Sacral plexus
Caudal cutaneous femoral n. innervates…
Caudal thigh
What is the lumbosacral trunk
Union of ventral branches of L6 - L7 - S1 - S2
Caudal gluteal n. arises from…
L7-S1,2
Caudal gluteal n. is the ONLY innervation to…
Superficial gluteal
Cranial gluteal n. arises from…
L6,7-S1
Cranial gluteal n. innervates…
Middle/deep gluteal, tensor fascia latae
Sciatic n. arises from…
L6,7-S1,2
Sciatic n. innervates…
Internal obturator, gemelli, quadratus femoris, biceps femoris, semitendinosus and semimembranosus