Unit IV Autonomic Nervous System Study Guide II

Question 1

The internal carotid plexus communicates laterally with all of the following, EXCEPT;

a. pterygopalatine ganglion
b. ciliary ganglion
c. tympanic branch of the glossopharyngeal nerve
d. abducent nerve.

Answer 1

b. Ciliary Ganglion

Also communicates with trigeminal ganglion

Question 2

Name the nerve which sends vasomotor rami to the hypophysis cerebri.

Answer 2

Internal Carotid Plexus of Superior Cervical Ganglion

Question 3

Name the artery on which the right and left sympathetic system connects each other in the cranial cavity.

Answer 3

Filaments on Anterior Communicating Artery

Question 4

Name the sympathetic nerve which supplies the carotid body and pharyngeal plexus.

Answer 4

Laryngopharyngeal branches of the Medial branch of the Superior Cervical Ganglion

Question 5

The largest sympathetic cardiac nerve arises from the ______ ganglia.

Answer 5

Middle Cervical Ganglion

Question 6

Name the sympathetic nerve which supplies the otic ganglion and to the genicular ganglion.

Answer 6

Middle Meningeal Plexus for otic

External petrosal nerve for genicular

Question 7

Name the ganglia, which send branches to enclose the vertebral artery.

Answer 7

Middle Cervical Ganglion

Question 8

Name the spinal cord segments which send the preganglionic sympathetic fibers to the head and neck.

Answer 8

T1-T5

Question 9

Name the sympathetic nerve which loops the first part of the subclavian artery.

Answer 9

Right Recurrent Laryngeal nerve (Ansa Subclavia)

Question 10

The thoracic sympathetic trunk passes through the ___ to become lumbar sympathetic trunk.

Answer 10

Crus of the diaphragm

Question 11

The thoracic sympathetic trunk passes through or posterior to following structures, EXCEPT
a. Medial arcuate ligament.
b  Right crus of the diaphragm.
c. Lateral arcuate ligament.
d. Left crus of the diaphragm.

Answer 11

c. Lateral arcuate ligament

Question 12

The greater splanchnic nerve is formed by branches from the T5 to T9 or T10 ganglia. True/False

Answer 12

True

Question 13

Name the thoracic sympathetic ganglia which form the lesser splanchnic nerve.

Answer 13

T9-T10 sympathetic ganglia

Question 14

The lowest splanchnic nerve enters the abdominal cavity through the____.

Answer 14

It pierces the crus of the diaphragm

Question 15

How many lumbar sympathetic ganglia are in the human body on each side?

Answer 15

4 interconnected ganglia

Question 16

All of the following are correct description about the lumbar sympathetic ganglia and trunk, EXCEPT

a. Located in the retroperitoneal space.
b. Located anterolateral to the lumbar vertebra.
c. Located along the lateral margin of the psoas major.
d. Superiorly it is posterior to the medial arcuate ligament.

Answer 16

c. Located along the lateral margin of the psoas major

It is located along the medial margin of the psoas major

Question 17

The first lumbar splanchnic nerve joins the following plexuses, EXCEPT

a. Celiac plexus.
b. Intermesenteric plexus.
c. renal plexus.
d. superior hypogastric plexus.

Answer 17

d. Superior hypogastric plexus

Question 18

Name the nerve which joins the hypogastric nerve from the lumbar sympathetic chain ganglia.

Answer 18

4th Lumbar Splanchnic nerve

Question 19

Name the artery on which the lower lumbar splanchnic nerves form a plexus.

a. Common iliac artery
b. Internal iliac artery
c. External iliac artery
d. Obturator nerve

Answer 19

a. Common Iliac Artery

But continues as a plexus on the internal and external iliac artery

Question 20

The pelvic sympathetic trunk locates medial to the ventral sacral foramina. True/False

Answer 20

True

Question 21

Which of the following is not a correct description of the pelvic sympathetic trunk with its ganglia?

a. It sends grey rami communicantes to the sacral and coccygeal spinal nerves.
b. It lies laterally to the ventral sacral foramina.
c. It has four or five interconnected ganglia.
d. Inferiorly the right and left trunk converge to the ganglion impar.

Answer 21

b.It lies laterally to the ventral sacral foramina

It lies medially

Question 22

The ganglion impar is the part of the parasympathetic nervous system. True/False

Answer 22

False. Sympathetic nervous system

Question 23

The heart receives the sympathetic fibers from the

a. T1 – T5
b. T10 – L2
c. T9 – T10
d. T8 – L1

Answer 23

a. T1-T5

Question 24

The segmental sympathetic nerves to the kidney are;

a. T11 – L2
b. T11 – T12
c. T1 – T5
d. T10 – L1

Answer 24

d. T10 – L1

Question 25

Name the two interconnecting ganglionated plexuses in the enteric nervous system.

Answer 25

Myenteric Plexus (Auerbach's)
Submucous Plexus (Meissener's and Henle's)

Question 26

The submucous plexus extends from ____ to the ____.

Answer 26

Stomach to the Internal Anal Sphincter

Question 27

Which of the following extends from the stomach to the internal anal sphincter in the enteric nervous system?

a. Celiac plexus
b. Intermesenteric plexus
c. Submucous plexus
d. Myenteric plexus

Answer 27

c. Submucous plexus

Question 28

What do the enteric sensory neurons monitor?

Answer 28

Intestinal wall tension
Intestinal contents
Interneurons link to the motor neurons to change activity of the intestines