Which of the following muscles is involved in inversion of the ankle joint?
A) tibialis anterior
B) extensor digitorum longus
C) fibularis brevis
D) fibularis longus
A
Explanation:
B) The extensor digitorum longus does not cause inversion of the ankle joint.
C) The fibularis brevis does not cause inversion of the foot.
D) The fibularis longus does not cause inversion of the foot.
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A portion of Na+ reabsorption in the late portion of the proximal tubule is passive through the paracellular pathway. What is the primary driving force for this passive reabsorption of Na+?
A. a lower luminal than peritubular hydrostatic pressure B. a higher luminal than peritubular [Na+] C. a lumen-positive transepithelial voltage D. a lower interstitial fluid than luminal fluid oncotic pressure
The joint between the trapezium and the first metacarpal is a:
a. plane joint b. saddle joint c. ball and socket joint d. condylar (ellipsoidal) joint