Which of the following neuron types are found only in the CNS?
a. multipolar
b. anaxonic
c. astrocytes
d. bipolar
Answer; c. astrocytes
Anatomy & Physiology
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Proteins located on the surface of the plasma membrane can act as ________ for hormones.
A. enzymes B. neurotransmitters C. pseudopods D. receptors
Anatomy & Physiology
Each muscle cell connects to how many neuromuscular junctions?
a. five b. four c. three d. two e. one
Anatomy & Physiology
Which of the following enzymes is mismatched with its substrate?
A. Pepsin - protein B. Amylase - starch C. Lipase - fat D. Deoxyribonucleases - DNA E. Trypsin - nucleic acids
Anatomy & Physiology
What is NOT true of the relative refractory period?
A. K+ is moving out of the axon through its open channels. B. A strong stimulus could cause a depolarization. C. Many Na+ channels are returning to a closed state. D. Na+ channels are inactivated.
Anatomy & Physiology