Exam 2: Reading Assignment

Question 1

Phrenic N passes ___ to root of lung

Answer 1

Anterior

Question 2

Functional components of phrenic N

Answer 2

1. Motor to diaphragm
2. Sensory
3. Sympathetic

Question 3

Accessory Phrenic N comes from

Answer 3

Variation from C5

Branch of N to Subclavius

Question 4

Advantage of accessory Phrenic N

Answer 4

Sectioning of phrenic N will not completely paralyze corresponding half of diaphragm

Question 5

Gray rami communicantes

Answer 5

Contain postganglionic sympathetic fibers

Connected to every spinal nerve

Question 6

White rami communicantes

Answer 6

Contain preganglionic sympathetic fibers

Limited to T1-L2

Question 7

Splanchnic nerves

Answer 7

Major visceral branches of sympathetic trunk which supply abdominal viscera

Question 8

Splanchnic nerves and segments

Answer 8

1. Greater Splanchnic (T5-T9)
2. Lesser Splanchnic (T10-T11)
3. Least Splanchnic (T12)

Question 9

Right vagus nerve enters thorax ___ right subclavian artery

Answer 9

Anterior

Question 10

Left vagus enters thorax between ___ and ____

Answer 10

Left common carotid

Left subclavian

Question 11

___ forms esophageal plexus

Answer 11

Vagus nerve

Question 12

Cardiac plexus related to

Answer 12

Arch of aorta

Controls heart rate

Question 13

Pulmonary plexus related to

Answer 13

Root of lung

Question 14

3 parts of esophagus

Answer 14

Cervical
Thoracic - longest
Abdominal

Question 15

Esophagus begins at laryngopharynx at

Answer 15

C6

Question 16

Portions of esophagus and corresponding muscles

Answer 16

Upper 1/3 = striated
Middle 1/3 = mixed
Lower 1/3 = smooth

Question 17

Thoracic aorta begins at

Answer 17

T4