1. Which muscle contracts to enable the main effort required to stand on your to
ID: 3504547 • Letter: 1
Question
1. Which muscle contracts to enable the main effort required to stand on your toes?
A. Biceps femoris
B. Quadriceps
C. Gastrocnemius
D. Tibialis anterior
2. When gluteus maximus contracts, which bone is pulled posteriorly by this muscle?
A. Tibia
B. Ilium
C. Ulna
D. Femur
3. When flexor digitorum profundus contracts, what action(s) occurs?
A. Wrist flexion
B. Elbow flexion
C. Flexion of digits 2-5
D. Flexion of digit 1
E. A&C
F. B&C
4. Contraction of _______ results in _______?
A. obturator externus, spine flexion
B. obturator externus, spine extension
C. iliacus, hip flexion
D. iliacus, hip extension
5. When piriformis contracts, what action(s) will not occur at the hip?
A. Internal rotation
B. Lateral rotation
C. Adduction
D. Flexion
E. Extension
F. A&D
G. B&E
Explanation / Answer
1. Which muscles contracts to stand on your toes?
Answer is B. Gastrocnemius
2. When gluteus maximus contracts which bone is pulled posteriorly
Answer is B. Ilium
3. When flexor digitorum profundus contracts ,it enable
Answer is E.
Wrist flexion and flexion of digits 2-5
4. Contraction of iliacus results in hip flexion.
Thus C is correct.
5. When piriformis muscle contracts which of the action will not occur
Answer is F.
Which is internal rotation and Flexion.
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