BIO 210 Chapter 11 Exam Questions and Answers All Correct
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Course
BIO 210
Institution
BIO 210
BIO 210 Chapter 11 Exam Questions and
Answers All Correct
The nervous system is? - Answer-The master controlling and communicating system of
the body
The three functions of the nervous system are? - Answer-1. Sensory input
2. Integration
3. Motor output
The sensory input - Answer-gathers i...
BIO 210 C hapter 11 Exam Questions and Answers All Correct The nervous system is? - Answer -The master controlling and communicating system of the body The three functions of the nervous system are? - Answer -1. Sensory input 2. Integration 3. Motor output The sensory input - Answer -gathers information by the internal and external sensory receptors The integration function - Answer -processes and interpre ts the sensory input The motor output function - Answer -activates the effector organs (muscles and glads) and produces the appropriate response The central nervous system is composed of? - Answer -The brain and spinal cord of the dorsal body cavity The p eripheral nervous system is composed of? - Answer -Spinal and cranial nerves The peripheral nervous system has two functional divisions known as? - Answer -
Sensory and motor divisions Sensory is also known as - Answer -Afferent Division Motor is also known as - Answer -Efferent division The somatic nervous system - Answer -conducts impulses from the Central Nervous System to Skeletal muscle Autonomic Nervous System - Answer -consists of visceral motor nerve fibers, and regulates smooth and cardiac muscles, a nd glands In the autonomic nervous system there are two functional subdivisions. What are they? - Answer -Sympathetic and Parasympathetic subdivisions Neuroglia cells - Answer -small cells that surround and wrap delicate neurons Neurons or nerve cells are - Answer -excitable cells that transmit electrical signals Four main neuroglia that support the Central Nervous System neurons are? - Answer -
Astrocytes, Microglial cells, ependymal cells, and oligodendrocytes Astrocytes are? - Answer -most abundant and versatile glial cells Astrocytes - Answer -Support and brace neurons Microglial cells are - Answer -small, ovoid cells with thorny processes that touch and monitor neurons Ependymal Cells - Answer -Range in shape from squamous to co lumnar and line central cavities of the brain and spinal column Oligodendrocytes are - Answer -branched cells that insulate myelin sheaths in thicker nerve fibers Satellite cells - Answer -Surround neuron cell bodies in PNS Schwann cells - Answer -surround all Peripheral nerve fibers and form myelin sheaths in thicker nerve fibers Neurons are - Answer -structural and functional units of the nervous system In the neuron process tracts are? - Answer -Bundles of neuron processes in CNS In the neuron process n erves are? - Answer -Bundles of neurons in PNS The two types of neuron processes are? - Answer -Dendrites and axon Anterograde - Answer -away from the cell body Retrograde - Answer -toward cell body The ruction of myelin is to - Answer -protect and electrically insulate axons Myelination in the PNS is - Answer -formed by Schwann cells that wrap the axon in a jelly roll fashion Myelin sheaths in the PNS are - Answer -formed by processes of oligodendrocy tes NOT WHOLE CELLS Each cell can wrap up to ______axons at onces - Answer -60 In myelin sheaths in the CNS the _________ matter is regions of the brain and spinal cord with dense myelinated fibers - Answer -White
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