Health Care > QUESTIONS & ANSWERS > Structure and Function of the Neurological System Exam Questions with Correct Answer (All)
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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