What are the primary functions of the nervous system? sensory input, integration, motor output circulation, respiration, reproduction growth, development, repair digestion, absorption, excretion

sensory input, integration, motor output

What is the central nervous system, and what are its primary roles? The somatic system; voluntary control The peripheral nerves; sensory input The autonomic system; involuntary control The brain and spinal cord; integration/command center

The brain and spinal cord; integration/command center

What is the peripheral nervous system, and what is its primary function? Brain and spinal cord; process information Paired spinal and cranial nerves; carry messages to/from CNS Autonomic nerves; regulate involuntary functions Somatic nerves; control voluntary movements

Paired spinal and cranial nerves; carry messages to/from CNS

What are the two functional divisions of the peripheral nervous system (PNS)? autonomic and somatic sympathetic and parasympathetic sensory (afferent) and motor (efferent) central and peripheral

sensory (afferent) and motor (efferent)

What are the two divisions of the motor (efferent) division of the PNS? afferent and efferent somatic nervous system and autonomic nervous system central nervous system and peripheral nervous system sympathetic and parasympathetic

somatic nervous system and autonomic nervous system

What is the primary function of the somatic nervous system? maintains homeostasis controls voluntary movements of skeletal muscles regulates involuntary activities transmits sensory information

controls voluntary movements of skeletal muscles

Chapter 11: Nervous System

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Biology - Anatomy

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Cards in this deck(51)

What are the primary functions of the nervous system?

What nervous system function involves information gathered by receptors about internal and external changes?

What nervous system function involves the interpretation of sensory input?

What nervous system function involves the activation of effector organs (muscles/glands) to produce a response?

What is the central nervous system, and what are its primary roles?

What is the peripheral nervous system, and what is its primary function?

What are the two functional divisions of the peripheral nervous system (PNS)?

What division of the PNS transmits impulses from the CNS to effector organs?

What are the two divisions of the motor (efferent) division of the PNS?

What is the primary function of the somatic nervous system?

What is the primary function of the autonomic nervous system?

What are the two functional subdivisions of the autonomic nervous system (ANS)?

What is the division of the autonomic nervous system that arouses the body, mobilizing its energy in stressful situations?

What is the division of the autonomic nervous system that calms the body, conserving its energy?

What are the types of neuroglia cells found in the nervous system?

What are the two principal cell types in the nervous system?

What are excitable cells that transmit electrical signals in the nervous system?

What are the supporting cells in the nervous system?

What is the most abundant type of neuroglia in the central nervous system (CNS)?

What are the defense cells in the central nervous system (CNS)?

What type of cells line the cerebrospinal fluid-filled cavities in the CNS?

What type of cells form the myelin sheath in the central nervous system (CNS)?

What are the types of neuroglia found in the peripheral nervous system (PNS)?

What are the special characteristics of neurons?

What are the processes of a neuron?

What are the bundles of processes called in the central nervous system (CNS)?

What are the bundles of processes called in the peripheral nervous system (PNS)?

Neurons respond to adequate stimulus by generating what?

The cytoplasmic side of the membrane is _____ charged relative to the outside.

There is a higher concentration of what ion inside the cells?

There is a higher concentration of what ions outside the cells?

What are the two types of membrane potential signals?

What are incoming short-distance signals in neurons called?

What are the long-distance signals of axons called?

What are the parts of a membrane potential?

What is it called when the inside of the membrane becomes less negative than the resting potential?

In depolarization, the membrane potential moves towards what value?

In hyperpolarization, the membrane potential _____?

When the membrane becomes more negative than the resting potential, what is this called?

Hyperpolarization reduces the probability of what occurring?

What are short-lived, localized changes in membrane potential called?

Where does action potential occur?

What phase of action potential has only leakage channels for Na+ and K+ open with their gated channels closed?

What phase of action potential has Na+ channels open so the axon becomes more positive?

What phase of action potential has Na+ channel gates close and K+ gates open, allowing axon negativity to restore?

At rest, the inside of the axon is _____?

Does K+ like to exit or enter the axon?

The action potential threshold is at what value?

During the action potential of a neuron, which ion is primarily crossing the membrane during the depolarization phase, and which direction is it moving?

The repolarization phase of the action potential, where voltage becomes more negative after the +30mv peak, is caused primarily by what?

Hyperpolarization is primarily due to what?

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Chapter 11: Nervous System

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