Lec 14 Quiz

Major nerves of the thoracic vertebrae

Intercostal nerves

Spinal nerve region and numbers for the lumbar plexus

T12 - L4

Function of the lateral femoral cutaneous nerve

Thigh sensation (anterior, lateral, posterior)

Nerve that serves the quadricep muscles

Femoral nerve

Spinal nerve region and numbers for the sacral plexus

L4 - S4

Spinal nerve region and numbers for the sciatic nerve

L4 - S3

Muscles served by the sciatic nerve

Hamstrings

Branching of the sciatic nerve

Tibial nerve and common fibular nerve (goes to the feet)

Outermost covering of the nerve

Epineurium

Why are there 8 cervical nerves if there are only 7 cervical vertebrae?

Spinal nerve C1 exits between the skull and the first cervical vertebra

Spinal nerve region and numbers for the cervical plexus

C1 - C5

Three major nerves of the cervical plexus

Supraclavicular, greater occipital, phrenic nerve

Nerve that serves the diaphragm

Phrenic nerve

Spinal nerve region and numbers for the brachial plexus

C5 - T1

Ventral roots (rami)

Connected to the spinal cord; where the spinal nerve "leaves" the spinal cord

Number of trunks in the brachial plexus

3 Trunks:
C5 and C6 - Superior
C7 - Middle Trunk
C8 and C9 - inferior

Divisions of the brachial plexus trunks

Anterior and posterior

Cords of the brachial plexus

Lateral, medial, posterior

Origin of the axillary nerve

Posterior cord (C5-C6)

Motor and sensory function of the axillary nerve

Sensory: shoulder; Motor: deltoid and teres minor