Thoracic viscera

Question 1

Limit antero-posterior

Answer 1

Sternum - thoracic vertebrae

Question 2

Lateral limit

Answer 2

Pleural cavities

Question 3

Superior

Answer 3

Superior thoracic aperture

Question 4

Inferior

Answer 4

Diafragm

Question 5

Resistance in lungs during fetal development

Answer 5

Has vascular resistance so no blood goes to pulmonary trunk

Question 6

Into what does vagus nerve split into

Answer 6

Recurrent laryngeal nerves

Question 7

What protects veins

Answer 7

Manubrium

Question 8

Origin of phrenic nerve

Answer 8

C3-C5

Question 9

What innervates diaphragm

Answer 9

Phrenic nerve

Question 10

Sites of esophageal constriction

Answer 10

C6, T4, T5, T10

Question 11

Descending aorta in

Answer 11

Posterior mediastinum

Question 12

What drains into azygos veins

Answer 12

Intercostal veins

Question 13

What drains into hemiazygos veins

Answer 13

Intercostal veins

Question 14

Where does arch of azygos drain to

Answer 14

Superior cava vein

Question 15

Connection between azygos and hemiazygos

Answer 15

Part of blood from left crosses to the right side. It allows for collateral circulation in case superior/inferior vena cava become obstructed

Question 16

Definition of accessory hemiazygos vein

Answer 16

Forms part of azygos system as it drains into it

Question 17

Thoracic duct is the

Answer 17

Main lymphatic duct

Question 18

Drainage of thoracic duct

Answer 18

From lower part of body + left superior