Nerve Source Branches Motor Sensory Notes
accessory cranial root: no named GSE: none also known as:
medulla - branches sternocleidoma CN XI, 11th
nucleus stoid and cranial nerve;
ambiguus; trapezius mm. spinal root
spinal root: enters cranial
spinal nucleus cavity by
of the upper passing
cervical through the
spinal cord foramen
magnum; exits
skull by
passing
through the
jugular
foramen;
accessory n. is
motor only; the
subtrapezial
plexus of
nerves receives
proprioceptive
fibers: for the
sternocleidoma
stoid m. from
the ventral
primary rami
of spinal nn.
C2 and C3 -
for trapezius
via ventral
primary rami
of C3 and C4
antebrachial musculocutan anterior and none skin of the lateral
cutaneous, eous n. posterior lateral side of antebrachial
lateral branches the forearm cutaneous n.
emerges from
the lateral
intermuscular
interval
between biceps
and brachialis;
it is the
continuation of
the
musculocutane
ous n.
antebrachial medial cord no named none skin of the medial
cutaneous, of the branches medial side of antebrachial
medial brachial the forearm cutaneous
plexus nerve travels