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Upper & Lower Limb Rotation — Musculoskeletal & Limb Development
Embryology Question Bank
Embryology Question Bank
Upper & Lower Limb Rotation
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Upper & Lower Limb Rotation MCQs: practice questions
Sample Upper & Lower Limb Rotation multiple-choice questions from Musculoskeletal & Limb Development.
Which adult arrangement results from lateral rotation of the upper limb?
- A. Both compartments anterior
- B. Both compartments posterior
- C. Flexors anterior and extensors posterior
- D. Flexors posterior and extensors anterior
- E. Flexors medial and extensors lateral
What is the principal effect of limb rotation on segmental innervation?
- A. It eliminates spinal innervation
- B. It modifies the adult dermatome pattern
- C. It changes sensory nerves into motor nerves
- D. It prevents peripheral nerve growth
- E. It forms the neural tube
Which spinal level is located at the middle finger in the upper-limb dermatome sequence described?
- A. C7
- B. C6
- C. C5
- D. C4
- E. T1
Which upper-limb rotation best explains why flexors are anterior in the adult?
- A. 45° medial rotation
- B. 90° medial rotation
- C. 90° lateral rotation
- D. 180° lateral rotation
- E. No rotation
During which week do the lower limb buds move into a sagittal orientation?
- A. Week 6
- B. Week 4
- C. Week 8
- D. Week 10
- E. Week 5
What happens to the originally straight embryonic dermatome pattern after upper-limb rotation?
What is the adult orientation of the knee produced by lower-limb rotation?
Which limb rotates laterally during development?
During which week do the upper limb buds move into a sagittal orientation?
During which weeks does upper-limb rotation occur?
In which plane are the lower limb buds initially oriented?
Which compartment of the adult lower limb is positioned anteriorly after rotation?
When positioned in the sagittal plane, which digit is used as the reference for the upper-limb dermatome pattern?
How does wrist flexion compare developmentally with ankle movement?
Which limb rotates medially during development?
Which compartment of the adult upper limb is positioned anteriorly after rotation?
How does wrist extension compare developmentally with ankle movement?
Which adult arrangement results from medial rotation of the lower limb?
What is the adult orientation of the elbow produced by upper-limb rotation?
Which lower-limb rotation best explains why flexors are posterior in the adult?
Through what angle do the upper limbs rotate?
In which direction do the lower limbs rotate?
Which compartment of the adult lower limb is positioned posteriorly after rotation?
Which compartment of the adult upper limb is positioned posteriorly after rotation?
In which plane are the upper limb buds initially oriented?
Which spinal level lies at the proximal inferior border of the upper limb in the described dermatome sequence?
Through what angle do the lower limbs rotate?
In which direction do the upper limbs rotate?
Which statement correctly compares upper- and lower-limb rotation?
At approximately what time does the lower limb bud appear relative to the upper limb bud?