1.Human anatomyMedium
The rotator cuff consists of supraspinatus, infraspinatus, teres minor and which other muscle?
- ADeltoid
- BLatissimus dorsi
- CTeres major
- DSubscapularis
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
Which structure passes through the inguinal canal in males?
- AObturator nerve
- BFemoral artery
- CSpermatic cord
- DGreat saphenous vein
3.Human physiologyMedium
What is the normal pH range of arterial blood?
- A7.50 to 7.65
- B7.00 to 7.20
- C6.80 to 7.00
- D7.35 to 7.45
4.Human physiologyHard
In Otto Loewi's classic experiment, fluid from a vagus-stimulated frog heart slowed a second heart. What did this show?
- AThe vagus nerve speeds up the heart
- BNerves pass signals to their targets by releasing a chemical
- CNerve impulses spread through the fluid directly as electricity
- DThe heart beats without any nerve supply
2Solutions
1.Human anatomy
Answer: D · 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
D · Subscapularis
2.Human anatomy
Answer: C · Spermatic cord
Why this is the answer
The inguinal canal carries the spermatic cord in males and the round ligament in females. The femoral vessels pass below the inguinal ligament instead.
Answer
C · Spermatic cord
3.Human physiology
Answer: D · 7.35 to 7.45
Why this is the answer
Arterial pH is normally 7.35–7.45. Below 7.35 is acidaemia and above 7.45 alkalaemia.
Answer
D · 7.35 to 7.45
4.Human physiology
Answer: B · Nerves pass signals to their targets by releasing a chemical
Why this is the answer
The fluid carried "Vagusstoff", later identified as acetylcholine. This was the first clear evidence for chemical neurotransmission.
Answer
B · Nerves pass signals to their targets by releasing a chemical
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