Leukemia involves
A. a decrease in leukocyte production.
B. a bacterial infection.
C. uncontrolled production of abnormal white blood cells.
D. a viral infection.
Answer: C
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Which muscle pulls the skin of the chin upward?
A. Masseter B. Mentalis C. Depressor anguli oris D. Platysma E. Depressor labii inferioris
In which of the following would the delay between stimulus and response be greater?
A) a monosynaptic ipsilateral reflex B) a polysynaptic ipsilateral reflex C) a monosynaptic contralateral reflex D) a polysynaptic contralateral reflex
Two of the nerves of the lumbar plexus are the
A. femoral and sciatic nerves. B. femoral and obturator nerves. C. obturator and pudendal nerves. D. pudendal and sciatic nerves.
Which of the following is the correct sequence of events for muscle contractions?
What will be an ideal response? A) motor neuron action potential, neurotransmitter release, muscle cell action potential, release of calcium ions from SR, ATP-driven power stroke, sliding of myofilaments B) neurotransmitter release, muscle cell action potential, motor neuron action potential, release of calcium ions from SR, sliding of myofilaments, ATP-driven power stroke C) muscle cell action potential, neurotransmitter release, ATP-driven power stroke, calcium ion release from SR, sliding of myofilaments D) neurotransmitter release, motor neuron action potential, muscle cell action potential, release of calcium ions from SR, ATP-driven power stroke