WorksheetsQuizzizz - Chapter 12
Total questions: 10
Worksheet time: 7mins
Write True or False: The regeneration tube guides the growth of a new axon from the proximal area across the injured area to the distal area where it replaces the original axon.
(a)
What factors contribute to a lack of neurogenesis in most parts of the brain?
B) Absence of growth stimulating cues present during fetal development.
Both A and B
A) Inhibitory influences from neuroglia.
C) Lack of appropriate neurotransmitters.
A which of the following statements is/are incorrect?
Parallel after discharge circuits may be involved in short term memory.
A diverging circuit would amplify a signal.
In a converging circuit, the postsynaptic neuron receives nerve impulses from several different sources.
Breathing is thought to be an example of a reverberating circuit.
Write True or False: Neural circuits are functional groups of neurons that process specific types of information.
(a)
Nitric acid is synthesized on demand and has a very brief action period. It quickly diffuses from the cell that produced it to other cells where it activates an enzyme necessary for production of a second messenger.
(a)
Which of the following statement is/are incorrect?
Glutamate and aspartate have excitatory effects.
Biogenic amines may be excitatory or inhibitory depending upon the type of metabotropic receptor that they bind to.
Gamma amino butyric acid and glycine are excitatory neurotransmitters.
ATP is an excitatory neurotransmitter.
Acetylcholine may be excitatory or inhibitory depending upon the type of receptor it binds to.
Write True or False: An inhibitory post synaptic potential will bring a membrane closer to threshold but normally does not initiate a nerve impulse.
(a)
Write True or False: An excitatory postsynaptic potential depolarizes the membrane while an inhibitory post synaptic potential hyperpolarizes it.
(a)
How are neurotransmitters removed from the synaptic cleft?
Uptake by cells
All of these
Diffusion
Enzymatic degradation
Write True or False: Myelination reduces the speed of propagation of an action potential.
(a)
