John experienced a cut that severs the tendon that attaches the insertion of the gastrocnemius muscle. As a result of this injury, what action is difficult for him to perform?
A. Dorsiflexion
B. Plantarflexion
C. Inversion of the foot
D. Eversion of the foot
Answer: B. Plantarflexion
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The ________________ capillaries pick up fluid and solutes that are reabsorbed in the proximal convoluted tubule.
Fill in the blank(s) with the appropriate word(s).
With respect to heart rate, which of the following had the same effect?
A) digitalis and atropine B) atropine and epinephrine C) digitalis and pilocarpine D) digitalis and pilocarpine as well as atropine and epinephrine
The ________ is the fold of the dura mater that separates the cerebral hemispheres
A) falx cerebelli B) endosteal layer C) falx cerebri D) tentorium cerebelli
Aging of the lymphatic system begins
A) at birth. B) before birth. C) after age 50. D) shortly after birth.