07 Nerve Tissue and CNS

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Salem State University *

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200

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Biology

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Jan 9, 2024

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7

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Nerve and CNS Questions Axons normally carry information _______ the nerve cell body. Dendrites carry information _______ the nerve cell body. away from; toward away from; away from toward; away from toward; toward first toward and then away; toward Besides the accessory nerve (XI), which pair of cranial nerves extends beyond the head and neck? Facial nerves (VII) Vagus nerves (X) Oculomotor (III) Trigeminal (V) Hypoglossal (XII) The cells that produce myelin in the PNS are called _______ and in the CNS the cells are called _______. Schwann cells; microglia satellite cells; astrocytes. Schwann cells; oligodendrocytes astrocytes; Schwann cells oligodendrocytes; Schwann cells The central nervous system (CNS) consists of:
the peripheral and autonomic nervous systems. the brain and spinal cord. the brain and cranial nerves. the cranial nerves and spinal nerves. the spinal cord and spinal nerves. The motor portions of the ANS, sympathetic and parasympathetic, are characterized by a two-neuron chain. The pre- ganglionic nerve cell body is found in the _______ and the postganglionic nerve cell body is found _______. cerebellum; in ganglia in the PNS central nervous system; in ganglia in the PNS peripheral nervous system; in nuclei in the CNS cerebral cortex; in ganglia in the PNS spinal cord only; in ganglia in the PNS The sensory or afferent nerve fibers carry information: away from the CNS. toward the CNS. away from the CNS to the ANS. away from the ANS. away from the visceral nervous system. The three connective tissue membranes covering and protecting CNS structures are collectively known as the _______. The _______ is the outermost, leathery layer. periosteum; dura mater meninges; arachnoid meninges; dura mater endosteum; pia mater meninges; pia mater
What are groups of nerve cell bodies in the CNS called? tracts ganglia central area nuclei nerves This deep groove separates the two hemispheres of the cerebrum: thalamus longitudinal fissure pons cerebellum Central sulcus Name the locations where the cerebrospinal fluid is found in the body. ventricles and subarachnoid space orbit and subarachnoid space ventricles and subdural space ventricles and pial space lymph and the subarachnoid space Which of the following is NOT a central nervous system glial cell?
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astrocyte neuron ependymal cell microglia oligodendrocyte A neurotransmitter is released from the: synaptic cleft. presynaptic nerve ending. postsynaptic nerve ending. synaptic bridge. dendrite ending. Between successive Schwann cells, there are gaps in the myelin sheath called: Nissl granules. axon hillock. nerve cell bodies. axons. nodes of Ranvier. Broca's area in the brain is associated with the ability to: interpret sounds. maintain a state of wakefulness. play a musical instrument. remember. speak. /bc_marieb_ehap_ 1671019 false false
Damage to which cranial nerve(s) may impair the sense of taste? a. VII Facial b. IX Glossopharyngeal c. XII Hypoglossal d. a, b, and c above are correct e. only a and b above are correct The basic unit of the nervous system is the ________. axon. dendron. nephron. neuron. nerve cell body. The brain is part of the: autonomic nervous system. central nervous system. peripheral nervous system. somatic nervous system. splanchnic nervous system. The cerebellum aids in maintenance of:
balance and posture. binocular vision. emotional behavior. speech. visual acuity. The cerebral cortex is characterized by numerous elevated ridges of tissue called _______. gyri. sulci. fissures. neural tubes. the cerebral lobes. The corpus callosum connects the: lateral lobes of the cerebellum. right and left cerebral hemispheres. hypothalamus to the pons. cerebellum to the pons and medulla. the calluses on the palms of your hands. The occipital lobes: are located within the white matter of the cerebrum. help regulate gross movements performed unconsciously. are concerned with vision. are part of the peripheral nervous system. are the most posterior part of the cerebellum.
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