chapter 17

Question 1

The term ___________ refers to a network braiding or twining where its parts combine, divide, and may combine again.

Answer 1

Plexus

Question 2

What in the body creates the arrangement of a plexus?
-this arise from spinal nerves that segmentally come off the spinal cord

Answer 2

Ventral rami

Question 3

The nerves arising form the _______________ often contain neurons that originate from more than one ventral ramus

Answer 3

plexus

Question 4

Peripheral nerve plexuses include the:

Answer 4

1) CERVICAL PLEXUS
2) Brachial plexus
3) Lumbar plexus
4) Sacral plexus
5) Coccygeal plexus

Question 5

The cervical plexus arises from the?

Answer 5

ventral rami C1,C2,C3, and C4

Question 6

What does the cervical plexus supply?

Answer 6

It supplies the head, neck, and shoulders

Question 7

What is the most important branch of the cervical plexus?

Answer 7

Phrenic Nerve

Question 8

The PHRENIC nerve arises from the…

Answer 8

Ventral rami of C3, C4, and C5

Question 9

What does the phrenic nerve supply?

Answer 9

DIAPHRAGM

Question 10

The brachial plexus arises from the?

Answer 10

ventral rami of C5, C6, C7, C8, and T!

Question 11

What does the brachial plexus supply?

Answer 11

upper limb

Question 12

The lumbar plexus arises from the?

Answer 12

Ventral rami of L1, L2, L3, and the UPPER DIVISION of the ventral ramus of L4

Question 13

What structure does the lumbar supply?

Answer 13

lateral, anterior, and medial sides, of the thigh

Question 14

The ______________ arises from the LOWER DIVISION of the ventral ramus of L4, and the ventral rami L5 and S1 thorugh S4

Answer 14

Sacral plexus

Question 15

The sacral plexus primarily supplies the rest of the?

Answer 15

Lower limb

Question 16

The _______________ arises from the ventral ramus of Cx1

Answer 16

coccygeal plexus

Question 17

The coccygeal plexus supplies the small area over the

Answer 17

Coccyx

Question 18

1) Which of the following is INCORRECT?
a. The brachial plexus supplies the upper limbs
b. The brachial plexus arises from the ventral rami of C5, C6, C7, C8, and T1
c. The cervical plexus arises form the ventral rami of C1, C2, C3, and C4
d. The phrenic nerve arises from the dorsal rami of C3, C4, and C5

Answer 18

d) the phrenic nerve arises from the dorsal rami of C3,C4, and C5

Question 19

2) Which of the following is CORRECT?
a. The coccygeal plexus arises from the ventral rami of Cx2
b. The lumbar plexus supplies structures of the lateral, anterior, and medial sides of the thigh
c. The sacral plexus arises from the upper division of the ventral ramus of L4, and the ventral rami of L5 and S1, S2,S3, and S4
d. The lumbar plexus arises from the dorsal rami of L1, L2,L3, and the upper division of dorsal ramus of L4

Answer 19

b) the lumbar plexus supplies structures of the lateral, anterior, and medial sides of the thigh