Lecture 22 Flashcards
motor forelimb
cranial pectoral nerve
C6,7,8
superficial pectoral
motor forelimb
suprascapular
C6,7
- lateral muscles of shoulder and scapula
- stabilizers, flexors and extensors of shoulder
- supraspinatus, infraspinatus
motor forelimb
muscluloculatenous
C6, 7, 8
- cranial muscles of the arm
- flexors of elbow, extensors of the shoulder
- biceps brachii, coracobrachialis, brachialis
motor forelimb
axillary
C7, 8
- caudal muscles of scapula and shoulder
- flexors of the shoulder
- deltoideus, teres major and minor, (subscapularis)
motor forelimb
RADIAL
C7,8,T1
- caudal muscles of arm
- extensors of elbow - triceps brachii
- cranial muscles of forearm
- carpal and digital extensors
motor forelimb
median and ulnar
C8, T1
- caudal muscles of forearm
- carpal and digital flexors
sensory forelimb
axillary
C7,8
lateral brachium and caudal scapular region
sensory forelimb
musclulocutaneous
C6,7,8
medial brachium and antebrachium
sensory forelimb
RADIAL
C7,8T1
lateral antebrachium and manus, dorsal surface of the paw
-dorsal skin over digits 3 and 4
sensory forelimb
median and ulnar
C8 T1
palmar surface of the paw
median- palmar skin over digits 2 and 3
ulnar- skin over abaxial digit 5
all spinal nerves caudal to T1 exit spinal cord ______ to the vertebrae for which they are named
caudal
motor hindlimb
obturator
L4,5,6
adductor muscles- external obturator, pectineus, gracilis, adductor
motor hindlimb
femoral
L4,5,6
quadriceps, hip flexors, stifle extenders, iliopsoas, sartoriuss
motor hindlimb
common peroneal
(branch of sciatic)
L6,7
flexors of the tarsus, extensors of the digits
motor hindlimb
tibial
(branch of sciatic)
L7, S1
extensors of the tarsus and flexors of the digits
motor hindlimb
pudendal
(branch of sciatic)
S1,2,3
external anal sphincter
motor hindlimb
sciatic
L6,7 S1,2
hamstrings
sensory hindlimb
femoral- saphenous
medial leg (thigh to paw- stifle to tarsus)
sensory hindlimb
sciatic
lateral and caudal surface of the crus
dorsal paw
plantar paw
define cutaneous zone
total region of skin innervation by one spinal nerve- usually overlapping with innervation of other spinal nerves
define autonomous zone
area that only one spinal nerve innervates- smaller than cutaneous
what clinical signs would you see if the radial nerve was damaged
issues with triceps brachii
carpal and digital extensors(cranial muscles of forearm)
no feeling on dorsal surface of the paw
what CS would you see if the obturator nerve was damaged
issues with adduction of the hindlimb
what CS would you see if the femoral nerve was damaged
issues with the quadriceps
and feeling to medial leg (thigh to paw)
