Basic Exercise Science - Nervous System

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1

Human Movement System (HMS)

The combination and interrelation of the nerevous, muscular and skeletal system

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Nervous system

Billions of cells specificalluy designed to provide a communication network within the human body

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Sensory function

The ability of the nervous system to sense changes in either the internal or external environment

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Integrative ffunction

The ability of the nervous system to analyze and interpret sensory information to allow for proper decision making, which produces the appropriate response

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Motor function

The neuromuscular response to the sensory information

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Proprioception

The cumulative sensory input to the CNS from all mechanoreceptores that sense body position and limb movement

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Neuron

The functional unit of the nervous system

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Sensory neuron (afferent)

Transmit nerve impulses FROM effector sites (muscles and organs) TO the brain and spinal cord...

Signal FROM muscles TO brain

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Interneurons

Transmit nerve impulses from one neuron to another

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Motor neurons (efferent)

Transmit nerve impulses FROM the brain and spinal cord TO effector sites...

Signal FROM brain TO effector site

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Central Nervous System (CNS)

The portion the nervous system that consists of the brain and spinal cord

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Peripheral Nervous System (PNS)

Cranial and spinal nerves that spread throughout the body

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Mechanoreceptors

Muscle SpindlesSensory receptors responsible for sensing distortion in body tissues

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Muscle Spindles

Receptors sensitive to change in length of the muscle and the rate of that change

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Golgi Tendon

Receptors sensitive to change in tension of the muscle and the rate of that change.

Cause the muscle to relax to prevent muscle from excessive stress.

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Joint Receptors

Receptors surrounding a joint that sespond to pressure, acceleration and deceleration of the joint.