Exam 4 Visceral Nervous System

Question 1

Dendrites carry impulses from the viscera to cell bodies via autonomic ganglia or somatic nerves

Answer 1

Without synapse

Question 2

Post-ganglionic fibers extend to effector organs to:

Answer 2

1. Decrease cardiac output
2. Constrict bronchial tree
3. Constrict pupils
4. Stimulate peristalsis

Question 3

CN 3,7, and 9 supply structures in

Answer 3

the head

Question 4

CN 10 supplies ___,_____, and ___ structures in the ___, ____, and _____

Answer 4

cardiac, respiratory, and digestive structures in the neck, thorax, and abdomen

Question 5

S2, 3, and 4 supply

Answer 5

distal parts of the digestive and urogenital systems

Question 6

The oculomotor nerve path goes into the orbit and synapses in

Answer 6

the ciliary ganglion

Question 7

Greater petrosal nerve synapses in the

Answer 7

pterygopalatine ganglion

Question 8

Chordates tympani synapses in

Answer 8

submandibular ganglion

Question 9

Preganglionic parasympathetic fibers from the tympanic nerve pass through the tympanic plexus and become the

Answer 9

Lesser petrosal nerve

Question 10

Type of receptors found in the carotid sinus

Answer 10

baroreceptors

Question 11

Chemoreceptors are found in the

Answer 11

carotid body

Question 12

Preganglionic fibers to the heart are carried in

Answer 12

superior and inferior cardiac nerves

Question 13

Parasympathetic impulses inhibit ______ and constrict ____ arteries in the heart

Answer 13

inhibit myocardium, constrict coronary arteries

Question 14

Preganglionic fibers in the esophagus are carried in

Answer 14

recurrent laryngeal nerves

anterior and posterior esophageal branches

Question 15

Postganglionic fibers in the esophagus supply

Answer 15

smooth muscle fibers

Question 16

Upper 1/3 of the esophagus is composed of

Answer 16

skeletal muscles supplied by recurrent laryngeal nerve

Question 17

Synapses occur in the submucosal and myenteric plexuses in the

Answer 17

wall of the stomach

Question 18

Parasympathetic stimulation in the stomach results in contraction of ______ and secretion of_____

Answer 18

contraction of smooth muscle and secretion of gastric juices

Question 19

What type of visceral afferents are found in the vermiform appendix?

Answer 19

nociceptors

Question 20

Motor supply to kidneys is strictly

Answer 20

sympathetic

Question 21

Parasympathetic supply to the liver and kidneys is

Answer 21

afferent

Question 22

Preganglionic fibers traveling distal colon reach the superior hypogastric and inferior mesenteric plexuses by way of the:

Answer 22

hypogastric nerve

Question 23

Fibers reaching the inferior part of the vagina may use the _______ to get there

Answer 23

pudendal nerve

Question 24

Cell bodies of sympathetic nerves are found in cord levels

Answer 24

T1-L2 or L3

Question 25

T1-L2/L3 white rami communicant are

Answer 25

myelinated

Question 26

The sympathetic trunk extends from _________ to ______

Answer 26

superior cervical ganglion to the ganglion impar

Question 27

The largest cervical sympathetic ganglia

Answer 27

superior cervical ganglion

Question 28

Lateral branches from the superior cervical ganglion are the

Answer 28

Gray Rami Communicans

Question 29

The lateral branches of the SCG communicate with anterior primary rami of:

Answer 29

C1-4 and CN 9, 10, 12

Question 30

Medial branches of SCG branches to the _____ via _____

Answer 30

branches to the heart via superior cardiac nerves that carry efferent information only

Question 31

Anterior branches of SCG follow the

Answer 31

common and external carotid arteries

Question 32

Middle cervical ganglion is the _________ and is located at _____

Answer 32

smallest cervical sympathetic ganglia and located at C6

Question 33

Thyroid branches of MCG reach the thyroid and _____ glands

Answer 33

parathyroid glands

Question 34

Cardiac branches of MCG make up

Answer 34

middle cardiac nerves

Question 35

Greater splanchnic nerve is formed from the __________ ganglia and terminates in the _____- ganglion

Answer 35

5-9th ganglia; terminates in celiac ganglion

Question 36

Lesser splanchnic formed by fibers from _____ ganglia and ends in the _____ ganglion

Answer 36

9th and 10th or 10th and 11th ganglia and ends in aorticorenal ganglion

Question 37

Least splanchnic nerve is formed by fibers from the _____ ganglion and terminates in the _____

Answer 37

12th ganglion and terminates in the renal plexus

Question 38

Distribution of preganglionic axons to the sympathetic trunk

Answer 38

- T1-L2 enter sympathetic trunk - T1-T5 levels ascend - T5-L2 levels descend

Question 39

T1 and T2 synapse in the ______ and send info to the _____

Answer 39

Superior cervical ganglion; head and neck

Question 40

Axons carrying info for the lungs leave the cord at ______ nerves and synapse in the ________

Answer 40

T2-T4; synapse in 2nd, 3rd, and 4th thoracic ganglia

Question 41

Preganglionic fibers for the upper extremities are carried in the ____ nerves and synapse in the _____

Answer 41

T3-T7; synapse in middle cervical and inferior cervical/stellate ganglia

Question 42

Fibers influencing abdominal viscera arises from _____ levels and synapse in _______

Answer 42

T5- T12; synapse in lower thoracic ganglia. Pass through sympathetic trunk to be carried primarily by greater, lesser, least splanchnic nerves

Question 43

Fibers influencing pelvic viscera arise form ______ levels and descend to ganglia in the _____, _____, and ____-

Answer 43

T10- L2 levels; ganglia in the lower thoracic, lumbar, and pelvic areas

Question 44

Preganglionic fibers carrying information for lower extremities are carried in the _____ nerves and synapse in the _______ ganglia

Answer 44

T10-L2 nerves; 2nd lumbar through 4th sacral ganglia

Question 45

Medial internal carotid nerve sends some fibers to the

Answer 45

pituitary gland

Question 46

Sympathetic stimulation of the heart will ____ heart rate and _____ coronary arteries

Answer 46

increase heart rate and dilate coronary arteries

Question 47

Parasympathetic stimulation of the pulmonary plexus results in

Answer 47

bronchoconstriction and increased secretion of bronchial glands

Question 48

Sympathetic fibers in pulmonary plexus are from _____ and supply the _____________

Answer 48

T2-T4 ganglia. Supply pleura, bronchial glands and musculature of lungs

Question 49

The celiac plexus begins at___

Answer 49

L1 vertebral level