Canine Pelvic Limb Nerves Flashcards
The obturator n. innervates __________.
The obturator n. innervates external obturator, pectineus m, adductor m.
The femoral n. innervates __________.
The femoral n. innervates sartorius m, quadriceps mm.
The **saphenous n. **innervates __________.
The saphenous n. innervates sartorius m.
The pudendal n. innervates __________.
The **pudendal n. **innervates internal reproductive structures.
The caudal rectal n. innervates __________.
The caudal rectal n. innervates external anal sphincter.
The **perineal n. **innervates __________.
The **perineal n. **innervates muscles of penis or vestibule/vagina.
The caudal gluteal n. innervates __________.
The **caudal gluteal n. **innervates superficial gluteal m.
The cranial gluteal n. innervates __________.
The **cranial gluteal n. **innervates middle & deep gluteal muscles, tensor fasciae latae m.
The sciatic n. innervates __________.
The sciatic n. innervates internal obturator m, gemelli m, quadratis femoris m.
The **common peroneal n. **innervates __________.
The common peroneal n. innervates cranial tibial m, peroneus longus m, long digital extensor m.
The **superficial peroneal n. **innervates __________.
The superficial peroneal n. innervates cutaneous zone to dorsal paw.
The lateral cutaneous sural n. innervates __________.
The **lateral cutaneous sural n. **innervates cutaneous zone of lateral crus.
The **tibial n. **innervates __________.
The tibial n. innervates gastrocnemius m, superficial digital flexor m, popliteus m, deep digital flexor m, sensory to plantar surface of paw.
The caudal cutaneous sural n. innervates __________.
The caudal cutaneous sural n. innervates cutaneous zone of caudal surface of crus.
Common peroneal n. and **tibial n. **are both branches of the __________ nerve
sciatic nerve
The internal obturator muscle is innervated by which nerve?
sciatic nerve
The external obturator muscle is innervated by which nerve?
obturator n.
The cranial tibial m. is innervated by which nerve?
common peroneal n.
The **internal reproductive structures **are innervated by which branch of the lumbosacral plexus?
pudendal nerve
Which branch of the lumbosacral plexus innervates the sartorius m.?
femoral n.
Cutaneous innervation to the dorsal paw is provided by which nerve(s)?
superficial & deep peroneal nerves
Which nerves would be anesthetized in a pudendal nerve block?
- caudal rectal n: motor to anal sphincter
- perineal n: skin of perineum, scrotum/labium, penile m.m.
- dorsal nerve of the penis: dorsal penis, glans of the penis
Which three nerves innervate the stifle?
Saphenous n. (by way of the femoral n.)
**Common peroneal n. **and tibial n. (by way of the sciatic n.)
Where would you commonly inject for an epidural in a small animal?
the lumbosacral junction
It is important to know where the phrenic nerve originates when performing epidural blocks in the lumbosacral space….
…where does the phrenic nerve originate?
The phrenic nerve originates at cervical nerves 5, 6, & sometimes 7.
C5, C6, C7
If the volume of epidural is too large, you may push the anesthetic cranially, along the spinal column, to affect these cervical nerves, leading to paralysis of the diaphragm and respiratory paralysis
