What is a nerve plexus?
a. A single spinal nerve
b. A network of interwoven spinal nerve fibers
c. A bundle of muscle fibers
d. A connection between cranial nerves
A network of interwoven spinal nerve fibers
How many major nerve plexuses exist in the body?
a. Two
b. Three
c. Four
d. Five
four
Which spinal nerves form the cervical plexus?
a. C5–T1
b. C1–C5
c. T12–L4
d. L4–S4
C1–C5
What does the cervical plexus primarily supply?
a. Shoulders and arms
b. Pelvic region
c. Neck and diaphragm
d. Abdomen
Neck and diaphragm
Which nerve controls the diaphragm for breathing?
a. Radial nerve
b. Sciatic nerve
c. Femoral nerve
d. Phrenic nerve
Phrenic nerve
Which plexus innervates the shoulders and upper limbs?
a. Cervical
b. Brachial
c. Lumbar
d. Sacral
Brachial
What spinal levels form the brachial plexus?
a. C1–C5
b. T12–L4
c. C5–T1
d. L4–S4
C5–T1
The sacral plexus supplies which region?
a. Neck and chest
b. Upper limbs
c. Pelvis and lower limbs
d. Abdomen
Pelvis and lower limbs
Which plexus contains nerves such as the radial, median, and ulnar nerves?
a. Cervical
b. Brachial
c. Lumbar
d. Sacral
Brachial
What region does the lumbar plexus supply?
a. Abdomen and anterior thigh
b. Neck and diaphragm
c. Posterior thigh and leg
d. Shoulder and arm
Abdomen and anterior thigh
Which spinal nerves form the lumbar plexus?
a. C1–C5
b. C5–T1
c. T12–L4
d. L4–S4
T12–L4
Which spinal nerves form the sacral plexus?
a. C1–C5
b. C5–T1
c. T12–L4
d. L4–S4
L4-S4
The femoral and obturator nerves come from which plexus?
a. Cervical
b. Brachial
c. Lumbar
d. Sacral
Lumbar
The sciatic nerve belongs to which plexus?
a. Cervical
b. Brachial
c. Lumbar
d. Sacral
Sacral
What is special about the sciatic nerve?
a. Smallest nerve in the body
b. Only sensory nerve in the leg
c. Largest nerve in the body
d. Located in the arm
Largest nerve in the body
