Within a resting skeletal muscle fiber, where is the greatest concentration of Ca2+?
A) zone of overlap of the sarcomere
B) Z lines between adjacent sarcomeres
C) terminal cisternae of the sarcoplasmic reticulum
D) inside the transverse tubules
E) bound to troponin
Answer: C
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A. A salt B. A solvent C. A protein D. A buffer
Which of the neurons is considered to be a bipolar neuron?
a) A b) B c) C d) All of the neurons. e) None of the neurons.
In which lobe of the cerebrum does the angular gyrus lie?
What will be an ideal response?
At electrical synapses:
A. there is a synaptic delay as the signal travels from the presynaptic to postsynaptic element B. release of neurotransmitter is required C. there is a low resistance pathway for current flow between cells D. electrical potentials can be transmitted in only one direction