Lungs and Thorax

Question 1

Pressure inside the pleural cavity?

Answer 1

756 mmHg

Question 2

What is the nerve supply of parietal pleura?

Answer 2

Intercostal and phrenic nerves(pain, touch, temperature and pressure)

Question 3

What is the nerve supply of visceral pleura?

Answer 3

Autonomic nervous system(stretch), no sensory innervation

Question 4

Root of the lungs content(5)

Answer 4

Main bronchus, pulmonary artery, pulmonary veins, lymph vessels, bronchial vessels

Question 5

2 causes of tracheal displacement

Answer 5

Aortic arch aneurysm

Thyroid gland enlargement

Question 6

What is the inferior limit of parietal pleura in the mid axillary line?

Answer 6

Rib 10

Question 7

2 causes of carinal distortion

Answer 7

CA into tracheobronchial lymph nodes

Left atrial hypertrophy

Question 8

Most likely area of foreign body aspiration

Answer 8

Right lung
Inferior lobe
Posterobasal segment

Question 9

Aspiration pneumonia usually is associated with which of the following segments?

Answer 9

Superior segments of the lower lobes, left and right

Question 10

The right bronchial vein drains into the?

Answer 10

Azygous Vein

Question 11

The left bronchial vein drains into the?

Answer 11

Hemiazygous vein

Question 12

A branch of the vagus nerve that supplies the lungs?

Answer 12

Pulmonary Plexus

Question 13

The anterior intercostal artery originates from which artery/ies?

Answer 13

Internal thoracic Artery and Musculophrenic artery

Question 14

Layers of passage in thoracentesis before it reaches the pleural cavity(usually 9th IC)

Answer 14

Skin, superficial fascia, external intercostal, inner intercostal, innermost intercostal, parietal pleura, thoracic cavity

Question 15

Name the parts of the subclavian artery and its branches?

Answer 15

1st part: Vertebral, Thyrocervical, internal thoracic
2nd part: costocervical
3rd part: None

Question 16

Subclavian artery is divided into three parts by which structure?

Answer 16

Anterior scalene muscle

Question 17

Name the parts of the aorta and its branches.

Answer 17

Ascending Aorta: left and right coronary arteries
Arch of Aorta: brachiocephalic, left common carotid, Left subclavian artery
Descending: bronchial, mediastinal, esophageal, posterior IC, pericardial, subcostal
Abdominal Aorta

Question 18

What is the most common for of coarctation of aorta?

Answer 18

Postductal Coarctation

• adult form
• good prognosis
• anterior IC forms collaterals

Question 19

Name the tributaries of the Internal Jugular Vein

Answer 19

Middle thyroid vein 
Superior thyroid vein 
Lingual Vein 
Common facial vein 
Pharyngeal Vein 
Inferior petrosal Sinus 
(Medical Schools Let Confident People In)

Question 20

Name the contents of the Carotid Sheath from medial to lateral

Answer 20

Common Carotid Artery, Vagus Nerve, Internal Jugular vein

Question 21

What is the significance of the Lesser Supraclavicular fossa?

Answer 21

IJV catheterization point of insertion

Question 22

Where does breast carcinoma most commonly occur?

Answer 22

Upper lateral quadrant

Question 23

What is the cause for the Peau d’ orange sign in breast CA?

Answer 23

interference w/ the lymphatic drainage of the breast, causing deviation of nipple with prominent pores

Question 24

What is the cause for the retraction of the nipple in breast CA?

Answer 24

pulling of lactiferous ducts

Question 25

What is the cause of skin dimpling in breast CA?

Answer 25

Shortening of the suspensory/ Ligaments