1.Human anatomyMedium
The rotator cuff consists of supraspinatus, infraspinatus, teres minor and which other muscle?
- ASubscapularis
- BLatissimus dorsi
- CTeres major
- DDeltoid
Anatomy and Physiology: cram pack
Formula sheets, the key method steps for every topic and 4 practice problems, with full solutions at the back.
1Practice problems
2.Human anatomyHard
After axillary lymph node surgery, a patient's scapula sticks out from the chest wall when pushing against a wall. Which nerve has been damaged?
- AAxillary nerve
- BSuprascapular nerve
- CThoracodorsal nerve
- DLong thoracic nerve
3.Human physiologyMedium
Which ABO blood group has both anti-A and anti-B antibodies in the plasma?
- AGroup AB
- BGroup A
- CGroup B
- DGroup O
4.Human physiologyHard
Which mechanism mainly creates the concentration gradient in the medulla of the kidney?
- ASecretion of urea into the proximal tubule
- BADH acting on the descending limb
- CGlomerular filtration
- DThe countercurrent multiplier of the loop of Henle
2Solutions
1.Human anatomy
Answer: A · Subscapularis
Why this is the answer
SITS: supraspinatus, infraspinatus, teres minor and subscapularis. Teres major is close by but is not part of the cuff.
Answer
A · Subscapularis
2.Human anatomy
Answer: D · Long thoracic nerve
Why this is the answer
The long thoracic nerve supplies serratus anterior, which holds the scapula against the chest wall. Damage causes a winged scapula.
Answer
D · Long thoracic nerve
3.Human physiology
Answer: D · Group O
Why this is the answer
Group O people have no A or B antigens and make both anti-A and anti-B. Group AB has both antigens and neither antibody.
Answer
D · Group O
4.Human physiology
Answer: D · The countercurrent multiplier of the loop of Henle
Why this is the answer
The ascending limb actively transports NaCl into the interstitium without letting water follow, and the countercurrent flow multiplies this into a steep gradient that ADH then uses to concentrate urine.
Answer
D · The countercurrent multiplier of the loop of Henle
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