Muscles with fibers that run parallel to the long axis of the body are called
A) lateralis.
B) transversus.
C) rectus.
D) obliquus.
E) medialis.
C
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The right ventricle pumps blood to the
A) right and left lungs. B) left ventricle. C) left atrium. D) aorta. E) right atrium.
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
In healthy endothelial cells, arachidonic acid is converted to ________, which ________ formation of blood clots.
A) prostacyclin : stimulates B) prostacyclin : inhibits C) thromboxane A2 : stimulates D) nitric oxide : inhibits E) thromboxane A2 : inhibits
What action would produce an IPSP on the postsynaptic membrane?
A. Influx of Na+ ions B. Opening of Cl- channels into the neuron C. Opening of Ca2+ channels into the neuron D. Outflow of K+ ions