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CHAPTER 11 BIO 220 URI Questions and Correct Answers/ Latest Update / Already Graded

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CHAPTER 11 BIO 220 URI Questions and Correct Answers/ Latest Update / Already Graded

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Institution CHAPTER 11 BIO 220 URI

Course CHAPTER 11 BIO 220 URI

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Nervous System Ans: Communication system of brain and spinal cord. Central Nervous System Ans: Includes the brain and spinal cord. Peripheral Nervous System Ans: Consists of nerves, ganglia, and receptors. Neurons Ans: Electrically excitable cells transmitting signals. Glial Cells Ans: Supportive cells with various functions. Nerve All rights reserved © 2025/ 2026 | Page | 2 Ans: Bundle of axons outside the CNS. Cranial Nerves Ans: 12 pairs originating from the brain. Spinal Nerves Ans: 31 pairs originating from the spinal cord. Ganglion Ans: Collection of neuron cell bodies outside CNS. Plexus Ans: Network of axons and neuron cell bodies. Homeostasis Ans: Maintaining internal balance and stability. Sensory Input Ans: Monitoring internal and external stimuli. All rights reserved © 2025/ 2026 | Page | 3 Integrating Information Ans: Processing sensory input in the CNS. Motor Division Ans: Transmits signals from CNS to effectors. Somatic Nervous System Ans: Voluntary control over skeletal muscles. Autonomic Nervous System Ans: Involuntary control over smooth and cardiac muscles. Sympathetic Division Ans: Pr

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CHAPTER 11 BIO 220 URI Questions and
Correct Answers/ Latest Update / Already
Graded
Nervous System

Ans: Communication system of brain and spinal cord.

Central Nervous System

Ans: Includes the brain and spinal cord.

Peripheral Nervous System

Ans: Consists of nerves, ganglia, and receptors.

Neurons

Ans: Electrically excitable cells transmitting signals.

Glial Cells

Ans: Supportive cells with various functions.

Nerve

All rights reserved © 2025/ 2026 |

, Page |2

Ans: Bundle of axons outside the CNS.

Cranial Nerves

Ans: 12 pairs originating from the brain.

Spinal Nerves

Ans: 31 pairs originating from the spinal cord.

Ganglion

Ans: Collection of neuron cell bodies outside CNS.

Plexus

Ans: Network of axons and neuron cell bodies.

Homeostasis

Ans: Maintaining internal balance and stability.

Sensory Input

Ans: Monitoring internal and external stimuli.

All rights reserved © 2025/ 2026 |

, Page |3

Integrating Information

Ans: Processing sensory input in the CNS.

Motor Division

Ans: Transmits signals from CNS to effectors.

Somatic Nervous System

Ans: Voluntary control over skeletal muscles.

Autonomic Nervous System

Ans: Involuntary control over smooth and cardiac muscles.

Sympathetic Division

Ans: Prepares body for physical activity.

Parasympathetic Division

Ans: Regulates resting functions like digestion.

All rights reserved © 2025/ 2026 |

, Page |4

Enteric Nervous System

Ans: Plexuses within the digestive tract.

Dendrites

Ans: Extensions receiving information from other neurons.

Neuron Cell Body

Ans: Contains organelles for typical cell functions.

Nissl Bodies

Ans: Rough endoplasmic reticulum in neuron cell body.

Action Potentials

Ans: Electrical impulses transmitting signals in neurons.

Axon

Ans: Conducts action potentials from neuron cell body.

Axon Hillock

All rights reserved © 2025/ 2026 |

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Uploaded on: December 12, 2025
Number of pages: 31
Written in: 2025/2026
Type: Exam (elaborations)
Contains: Questions & answers

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