5. The spinal cord is responsible for conduction of information to and from the brain and carries out reflex action. A) True B) False. 6. The neurotransmitter of the parasympathetic division is a) norepinephrine b) acetylcholine c) cholinesterase d) dopamine. 7. This neurotransmitter plays an important role in sleeping, emotions, and perception. A) Dopamine B) Acetylcholine C) Serotonin D) GABA. 8. How do action potentials relay different intensities of information? a) By changing the speed with which the impulse passes b) by changing the timing of the action potential c) by changing the frequency of the action potential d) by reversing the direction of the action potential. 9. Memories are stored in the sensory association areas of the a) cerebral cortex b) Spinal cord c) brain stem d) hypothalamus. 10. Testosterone is produced and secreted by a) spermatogenesis b) interstitial cells c) Seminiferous tubules d) sustentacular cells 11. Which of the following cerebral areas is not correctly matched with its function ? a) Occipital lobe ------ vision b) parietal lobe -----somatosensory area c)temporal lobe -------primary motor area d) frontal lobe ------Broca's motor speech area. 12. This part of the brain forms the link between the nervous system and the endocrine system ? a) corpus callosum b) reticular formation c) amygdala d) hypothalamus 13. Thyroid hormones directly regulate what aspect of human physiology ? A) stress response B) circadian rhythm C) metabolic rate d) sex hormone production.
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What is the function of the cerebellum? Select one: a. Contains nerve fibers that allow coordinated function of the two cerebral hemispheres b. Secretes melatonin for sleep-wake cycles c. Produces a variety of hormones d. Regulates heart and respiratory rates e. Responsible for some visual and auditory reflexes f. Maintains body homeostasis, regulates pituitary gland, part of limbic system g. Controls skeletal muscle for coordination, posture, balance h. Receives sensory impulses and relays them to appropriate brain regions i. Contains nerve fibers that bridge parts of the brain as well as the spinal cord
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The nervous system originates from the sides of which fold over to form the neural tube. The anterior end of this structure thickens to become the brain, while the posterior end remains tubular and becomes the spinal cord. The anterior end becomes folded because it cannot grow beyond the skull. The fluid-filled cavities within this structure are called ventricles and developing neurons in the layer adjacent to them. The neurons then migrate to other layers using structures called radial glial cells as guides. Eventually, they aggregate with other neurons with similar functions.
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1. Which of the following is found only in the central nervous system? Group of answer choices: a. spinal nerves b. Pacinian (or lamellated) corpuscles c. Free nerve endings d. basal nuclei or basal ganglia 2. The meninges are connective tissue layers which protect nervous tissue. Which of the layers forms the outer covering of the brain and spinal cord? Group of answer choices: a. pia mater b. dura mater c. perineurium d. arachnoid e. epineurium 3. What do the subarachnoid space, the central canal of the spinal cord, and the ventricles have in common? Group of answer choices: a. they are the site where nerves enter/exit the central nervous system b. They provide the space where neurotransmitters are able to reach their receptors c. they contain cerebrospinal fluid d. they provide a way for waste products to leave the central nervous system 4. There are no neurons outside of the central nervous system. Group of answer choices: a. True b. False 5. How could you increase the strength of a synapse? Group of answer choices: a. Increase the speed of neurotransmitter degradation b. Increase the size of the cell body c. Decrease the number of synaptic vesicles d. Increase the number of receptors in the postsynaptic terminal 6. Which of the following brain functions require synaptic plasticity? Group of answer choices: a. All of the above b. Neural development c. Both neural development and recovery from injury d. Recovery from injury e. Firing action potentials 7. Referred pain is caused by many first-order pain-sensing neurons sending signals to the same set of second-order neurons in the dorsal horn. This can lead to pain signals from internal organs, like the heart, being perceived by the brain to come from skin areas like the upper arm. This instance of many axons sending signals to the same few neurons is an example of what kind of neural circuit organization? Group of answer choices: a. Parallel processing b. Convergence c. Divergence d. None of the above
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