Which muscle abducts and medially rotates the thigh, and shifts the weight from one foot to the other when walking?
A. Quadratus femoris
B. Gluteus medius
C. Gemellus superior
D. Gluteus maximus
E. Piriformis
Answer: B
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Answer the following statement true (T) or false (F)
Which of the following does NOT influence the time necessary for a nerve impulse to be conveyed by a particular neuron?
A) presence or absence of a myelin sheath B) diameter of the axon C) presence or absence of nodes of Ranvier D) whether axon is sensory or motor E) length of the axon
Net sodium movement into the cell occurs passively, whereas net sodium movement out of the cell occurs actively
Indicate whether the statement is true or false
When magnesium loses electrons to become an ion, what does it become?
A. A covalent molecule B. An anion C. A free radical D. A new element E. A cation