Anatomy and Physiology: cram pack

Formula sheets, the key method steps for every topic and 4 practice problems, with full solutions at the back.

New problemsBack to the course

In the print window, choose “Save as PDF” to keep a copy on your device.

1Practice problems

1.Human anatomyMedium

Which nerve is compressed in carpal tunnel syndrome?

  1. AMusculocutaneous nerve
  2. BMedian nerve
  3. CRadial nerve
  4. DUlnar nerve
2.Human anatomyHard

Which muscle "unlocks" the fully extended knee by rotating the femur laterally on the tibia at the start of flexion?

  1. ASartorius
  2. BBiceps femoris
  3. CGastrocnemius
  4. DPopliteus
3.Human physiologyMedium

Vital capacity is the sum of which lung volumes?

  1. ATidal volume, inspiratory reserve volume and expiratory reserve volume
  2. BResidual volume and expiratory reserve volume
  3. CTidal volume and residual volume
  4. DInspiratory reserve volume and residual volume
4.Human physiologyHard

Why does breathing 100% oxygen correct hypoxaemia from a true right-to-left shunt only poorly?

  1. AThe shunted blood never comes into contact with alveolar gas
  2. BPure oxygen damages haemoglobin
  3. CShunted blood is already fully saturated
  4. DThe extra oxygen is all exhaled as CO₂

2Solutions

1.Human anatomy

Answer: B · Median nerve

Why this is the answer

The median nerve passes through the carpal tunnel under the flexor retinaculum; compression causes tingling in the thumb, index and middle fingers.

Answer

B · Median nerve
2.Human anatomy

Answer: D · Popliteus

Why this is the answer

At full extension the knee locks by medial rotation of the femur. Popliteus laterally rotates the femur on the fixed tibia to unlock it so flexion can begin.

Answer

D · Popliteus
3.Human physiology

Answer: A · Tidal volume, inspiratory reserve volume and expiratory reserve volume

Why this is the answer

Vital capacity = IRV + TV + ERV. It excludes the residual volume, which always stays in the lungs.

Answer

A · Tidal volume, inspiratory reserve volume and expiratory reserve volume
4.Human physiology

Answer: A · The shunted blood never comes into contact with alveolar gas

Why this is the answer

Shunted blood bypasses ventilated alveoli and mixes deoxygenated blood into arterial blood. Extra inspired oxygen cannot reach it, unlike in V/Q mismatch or hypoventilation.

Answer

A · The shunted blood never comes into contact with alveolar gas

ExamProblems · examproblems.com/courses/anatomy-and-physiology