Regarding Rotator Cuff Injury...

A 23-year-old man presents following a fall onto his left shoulder whilst playing rugby. He complains of pain throughout the shoulder and on examination has weakness when testing internal rotation of the arm compared to the contralateral side.
Radiographs are negative.

Injury to which tendon would explain his symptoms?
A Deltoid
B Infraspinatus
C Subscapularis
D Supraspinatus
E Teres minor

Answer:

Regarding anatomy of the heart...

Which of the following regarding the anatomy of the heart is true?
A) The aortic valve is tricuspid.
B) The ascending aorta is entirely outside the pericardial sac.
C) The left atrial appendage is identified readily by transthoracic echocardiography.
D) The pulmonary trunk lies anterior to the ascending aorta.
E) The right atrium is posterior to the left atrium.

Answer:

Regarding Dermatomes.....

A 55-year-old woman complains of neck and right arm pain for the past two months. The pain is often triggered by flexing her neck. Her past medical history includes osteoarthritis of her knee, obesity and depression.
On examination there is no obvious muscle atrophy or weakness of the right arm. There is however some sensory loss over the middle finger and palm of the hand.
Which nerve root is most likely to be affected by the impingement?
A. C4
B. C5
C. C6
D. C7
E. C8

Answer: