neural basis final
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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| Which of the following is true regarding the action potential (AP)? | show 🗑
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| show | milliseconds
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| Match the correct function with the appropriate neuronal organelle. | show 🗑
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| Which of the following is NOT a function of glial cells? | show 🗑
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| show | neurons have a high metabolic rate.
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| show | B) Provision of nourishment to neurons. C) Clean up of debris within the brain.
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| show | Oligodendrocytes are found within the brain. Schwann cells provide myelin for peripheral nerve cells. A single Schwann cell wraps a single segment of a peripheral nerve cell. A single oligodendrocyte can myelinate multiple segments of an axonal membrane
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| Which of the following was NOT a feature of action potentials? | show 🗑
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| Movement of the axon membrane potential from -70 mV to -90 mV would be termed a(n) | show 🗑
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| At +5 mV (inside relative to outside), the electrical gradient or electrical force acting on sodium is: | show 🗑
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| At +5 mv (inside relative to outside), the concentration gradient or force acting on sodium is: | show 🗑
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| show | sodium; into
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| show | A) Concentration gradient. B) Electrical gradient.
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| Which of the following events restores the membrane potential from the peak of the action potential back to the resting level? | show 🗑
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| show | nodes of ranvier
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| In which portion of a neuron would you expect to find the largest number of vesicles? | show 🗑
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| Which of the following will produce an EPSP? | show 🗑
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| show | A) presynaptic membrane; the transmitter released by that neuron
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| show | opening a chloride channel
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| The process that usually terminates the postsynaptic potentials induced by most neurotransmitters is | show 🗑
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| A drug that inactivates acetylcholinesterase (AChE) would be expected to | show 🗑
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| Which effect is consistently associated with a “second messenger”? | show 🗑
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| If you were interested in viewing the ultrastructure (very fine detail) of neurons, you would use a(n): | show 🗑
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| show | cell bodies (soma)
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| show | true
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| One remarkable characteristic of the human brain, in comparison with the brains of other animals, is the great expansion of our _______. | show 🗑
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| show | ipsilateral
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| Which of the following would be found outside the CNS? | show 🗑
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| show | A) Salivation. B) Airway constriction. C) Sexual arousal.
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| show | A collection of cells surrounding a fluid-filled cavity.
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| show | medulla
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| When a primitive neuron, which looks similar to most other cells in the body, begins to develop dendrites and an axon, the process is called _________. | show 🗑
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| In what way is “bregma” useful to brain researchers? | show 🗑
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| show | the production of new cells
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| show | B) Hippocampus C) Basal ganglia
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| A ____ section made perpendicular to the ground and parallel to the neuraxis through a human brain divides the brain into two symmetrical halves. | show 🗑
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| show | A) Coronal B) Horizontal
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| show | midbrain
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| show | vision (sight)
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| Injecting an animal with a dose of a chemical molecule that is a precursor for the synthesis of a synaptic neurotransmitter would be expected to | show 🗑
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| show | Indirect antagonist.
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| show | Increases the release of the neurotransmitter from the axon terminal.
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| A shift of the dose-response curve to the right denotes | show 🗑
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| show | agonist
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| show | true
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| Which of the following techniques would be used to trace efferent axons from a brain region to other brain regions? | show 🗑
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| show | Indicate that neuron activity is silent during specific behavioral tasks.
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| show | a protein molecule
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| show | PHA-L is to fluorogold
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| show | dorsal horn
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| Researchers who wish to determine which neurotransmitters are released during a behavioral activity, and in what amounts, will most likely use: | show 🗑
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| Which area of the brain does not contain part of the reticular formation? | show 🗑
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| show | A. Olfactory epithelium B. Ossicles C. Tenacious membrane D. Middle ear E. NONE
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| Which of the following is not true? B.Rods have a greater sensitivity to dim light than cones C.Cones contribute to color vision D.Rods depolarize in the presence of light | show 🗑
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| show | Light; zeitgeber
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| Simple cells in the visual cortex | show 🗑
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| The utricle and saccule are designed to transduce information about: | show 🗑
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| The optic nerve is formed by axons that arise from the _____ retinal cells | show 🗑
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| The primary function of the Pacinian corpuscle is to detect | show 🗑
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| A mutation in which inner hair cells are lost in the cochlea would be expected to result in | show 🗑
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| show | a.in the visual system is usually associated with primary visual cortex b.is a way to sharpen contrast c.is created when activity from one cell inhibits activity of a neighboring cell d.helps in the visual detection of borders
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| A high frequency tone would be expected to produce a maximal bending of the ____ nearest the _____. | show 🗑
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| Sudden changes in the rotation of the head are sensed by the | show 🗑
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| show | the external surface of the skin
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| Papillae are found: | show 🗑
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| show | Olfactory epithelium
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| A person whose brain waves contain high-amplitude delta waves is most likely | show 🗑
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| All of the following are characteristics of REM sleep EXCEPT | show 🗑
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| show | Increase the amount of time spent that night in slow-wave sleep.
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| show | produce insomnia
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| show | Inhibition of neurons that normally inhibit the VLPA.
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| show | A. Timing of sleep cycles. B. Activity levels. C. Drinking. D. Hormone secretion. E. ALL
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| show | blood; cells
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| Osmoreceptors are specialized neurons that detect | show 🗑
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| The key function of instrumental conditioning is to allow an organism to | show 🗑
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| show | Long-term potentiation of postsynaptic neurons.
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| Simple perceptual learning involves | show 🗑
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| Patient H.M. was treated for severe epilepsy by bilateral removal of his | show 🗑
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| show | intravascular; intracellular
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| show | A. are transported retrogradely through projecting axons B. mediate competition of presynaptic cells for targets C. pair a sufficient number of projection neurons with a corresponding number of targets D. are secreted from postsynaptic sites
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| Which of the following is true of amyotrophic lateral sclerosis (ALS)? | show 🗑
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lindseylinz