The area of the sarcomere that contains only thin filaments is the
A) Z line.
B) M line.
C) H band.
D) A band.
E) I band
E) I band
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Muscle cells are made up of ________.
A. Z lines B. myosin C. myofibrils D. actin
Which is FALSE about neurons?
A. An individual neuron can receive information from multiple other neurons. B. A neuron receives information on its axons and delivers it to other neurons through its dendrites. C. An individual neuron can transmit information to multiple other neurons. D. A given neuron can be either a presynaptic neuron or a postsynaptic neuron. E. A neuron can simultaneously release more than one type of neurotransmitter.
What do the following hormones have in common: somatostatin, gonadotropin-releasing hormone, thyrotropin-releasing hormone, and prolactin-inhibiting hormone?
A) They are all secreted from the hypothalamus and target the anterior pituitary. B) They are all secreted from the anterior pituitary. C) They are all secreted from the posterior pituitary. D) They are all stored in the anterior pituitary.
During skeletal muscle contraction, to what do myosin heads bind?
A) myosin filaments B) actin filaments C) Z discs D) thick filaments E) the H zone