PLEXUSES

Question 1

CERVICAL PLEXUS

Answer 1

(C1-C4)
- neck muscles and provides sensory innervation to the anterior and lateral neck.

Question 2

BRACHIAL PLEXUS

Answer 2

C5-C8)(T1)
- Innervates motor and sensory of the nerves of the shoulder, arm and hand

Question 3

LUMBAR PLEXUS

Answer 3

(L1-L5)
- Innervates sensory and motor nerves to innervation to several important muscles. Notable muscles include the psoas muscle, quadratus lumborum, lumbar transverse muscles, quadriceps femoris, transversus abdominis, and internal oblique muscles

Question 4

SACRAL PLEXUS

Answer 4

(S1-S5)
- provides motor and sensory nerves for the posterior thigh, most of the lower leg, the entire foot, and part of the pelvis