Mediastinum

Question 1

Where does the internal jugular vein receive blood?

Answer 1

head and neck

Question 2

what two vessels come together to form the brachiocephalic vein on each side?

Answer 2

subclavian and internal jugular

Question 3

Where does the trachea branch into right and left primary bronchi?

Answer 3

sternal angle (T4-T5)

Question 4

Where does the esophagus pass through? What is the structure called and at what vertebral level? Along with vagal nerves

Answer 4

diaphragm; esophageal hiatus

T10

Question 5

I ate 10 eggs at noon

Answer 5

inferior vena cava at T8; esophagus at T10; aorta at T12

Question 6

phrenic nerves arise from ventral rami of …

Answer 6

C3, C4, C5

Question 7

phrenic nerves run external to the fibrous pericardium on its way to innervating the…

Answer 7

diaphragm

Question 8

both L. and R. phrenic nerves remain …. to the hilum in the thorax to reach the diaphragm or ….

Answer 8

anterior; hilum; middle mediastinum

Question 9

phrenic nerve transmits referred pain from …. to…

Answer 9

diaphragm, pericardium and mediastinal pleura; C3, C4, C5 dermatomes

Question 10

vagus is CN…

Answer 10

10

Question 11

vagus nerve is a major …nerve supplying to all thoracic organs and upper 2/3 of abdominal organs.

Answer 11

parasympathetic

Question 12

….parasympathetic motor neurons are located in the medulla while ….nerve cell bodies are located in the terminal organs.

Answer 12

preganglionic; postganglionic

Question 13

right recurrent laryngeal nerve runs …..right subclavian artery (T1)

Answer 13

under

Question 14

left recurrent laryngeal nerve runs… arch of aorta lateral to ligamentum arteriosus.

Answer 14

under

Question 15

right recurrent laryngeal nerve comes off the vagus at about…. and the left comes off at about ….

Answer 15

T1; T4-T5

Question 16

cardiac, pulmonary and esophageal plexuses are …

Answer 16

mixed and contain both sympathetic and parasympathetic

Question 17

T1-T5 contribute ….nerves that synapse in the paravertebral sympathetic chain ganglia.

Answer 17

sympathetic preganglionic

Question 18

greater splanchnic nerves from

Answer 18

T5-T9

Question 19

lesser splanchnic nerves from

Answer 19

T10-T11

Question 20

thoracic duct begins in abdomen as …

Answer 20

cisterna chyli

Question 21

thoracic duct receives lymph from…

Answer 21

both sides of thoracic cavity and abdomen

Question 22

thoracic duct empties…

Answer 22

into junction of left subclavian and left internal jugular veins

Question 23

thoracic duct returns …liters of fluid and white blood cells back to venous circulatory system every day.

Answer 23

2