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Structure and Function of the Neurological System Exam Questions with Correct Answer

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Structure and Function of the Neurological System Exam Questions with Correct Answer What are the three main components of the neurological system? -Answer- central nervous system (CNS), peripheral... nervous system (PNS), autonomic nervous system (ANS) The CNS is composed of the ____ and the ____ ____. -Answer- brain and spinal cord What is the brain enclosed in? The spinal cord? -Answer- cranial vault. vertebrae The PNS is composed of ____ nerves and ____ nerves. Both are divided into ____ pathways and ____ pathways. -Answer- cranial and spinal. afferent and efferent. Afferent pathways are ____ pathways which carry ____ impulses ____ the CNS. -Answer- ascending, sensory, toward Efferent pathways are ____ pathways which carry ____ impulses ____ from the CNS. -Answer- descending, motor, away What do efferent pathways innervate? -Answer- skeletal muscles or effector organs The ANS consists of ____ neurons and ____ axons. -Answer- sensory, motor What is the ANS responsible for? -Answer- monitoring changes in internal environment and bringing about appropriate changes in them The contraction of both ____ muscle and ____ muscle is controlled by motor neurons of the ANS. -Answer- smooth, cardiac What system is the ANS considered a part of? -Answer- PNS What part of the nervous system is responsible for responding to changes in the external environment? -Answer- sensory-somatic nervous system What is considered the fore-brain? (2) -Answer- telencephalon and diencephalon What is considered the hind-brain? (3) -Answer- cerebellum, pons and medulla What is considered the brain stem? (3) -Answer- midbrain, pons, medulla Primary cell of the nervous system -Answer- neuron Where are most neurons located? -Answer- CNS Neurons in the PNS are found in groupings, called ____ or ____. -Answer- ganglia or plexuses What is the cell body of a neuron called? -Answer- soma In the soma (neuron cell body), ____ occurs as well as ____ production. -Answer- metabolism, neurotransmitter What are dendrites? -Answer- thin processes that carry nerve impulses TOWARD the cell body Where are neurotransmitters released? -Answer- terminal end of axon Axons carry nerve impulses ____ from the cell body. -Answer- away [Show More]

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