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tablets, laptops must be put away. Exam 28 or fal Part A. T points: 10@2 points

ID: 3512416 • Letter: T

Question

tablets, laptops must be put away. Exam 28 or fal Part A. T points: 10@2 points each): Indicate whether the statement is true _ An efflux of K+ ions depolarizes the membrane of an axon. 2. euron v -Dendrites are the part of the neuron that provide input or signal reception for a n receptors for neurotransmitters. wann cells are the primary type of myelinating glial cell associ n an action potential reaches the axon terminal, a quick burst of neurotransmitter ated with the central S. Sch nervous system (CNS). 4. he released into the synaptic cleft. 5. The ascending and descending tracts of the spinal cord containing myelinate d axons a found in the gray matter. Contraction of smooth muscle cells is driven by binding of calcium to calmodulin. Tonic sensory receptors are best at detecting changes in the environment (e.g., onse 6. 7. of stimuli). 8. The dorsal column-medial lemniscal pathway carries mechanoreceptive and propri information to the thalamus, whereas the spinothalamic tract carries thermoreceptive nociceptive information. 9. The proximity of the sarcoplasmic reticulum to each sarcomere permits the nearl simultaneous delivery of calcium to all sarcomeres of the muscle fiber. 10. Binding of ATP to myosin decreases myosin's affinity for actin.

Explanation / Answer

Answer 1. False

The correct statement should be “An efflux of K+ ions results in repolarization of the membrane of the axon.”

Answer 2. True

Answer 3. False

Schwann cells are the myelin producing cells of the peripheral nervous system.

Answer 4. True.