Part 9 Lesson 1: The Nervous System

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The nervous system receives and then sends out information about your ______

body

It also monitors and responds to changes in your ______

environment

Neuron: A specialized cell transmitting nerve ______

impulses

Electrical signal: Changes + and – charges from one end of a neuron to ______

another

Chemical signal: Chemicals allow signals to go from one neuron to another by “jumping the gap (______)”

synapse

Sensory neuron: Conducts impulses inwards to the brain or spinal cord. Touch, odor, taste, sound, ______

vision

The Central Nervous System consists of the brain and ______

spinal cord

The Peripheral Nervous System is a network of nerves throughout the ______

body

The brain is well protected by the ______

skull

Cerebrospinal fluid (CSF) cushions the brain and spinal cord from injury and also serves as a ______ delivery and waste removal system for the brain

nutrient

The lobed mass of grey matter buried under the cerebral cortex is called the ______

Thalamus

The thick band of nerve fibers that divides the cerebrum into left and right hemispheres is called the ______

Corpus Callosum

A spinal cord injury can result in ______

paralysis

The brain is divided into four sections, known as ______

lobes

The Frontal Lobe is associated with reasoning, planning, parts of speech, movement, emotions, and ______ solving

problem

The Temporal Lobe is associated with perception and recognition of auditory stimuli, memory, and ______

speech

Which type of neuron conducts impulses inwards to the brain or spinal cord for touch, odor, taste, sound, and vision?

Sensory neuron

What is the main function of an interneuron?

Transmit impulses between other neurons

What type of cell receives messages from the surroundings in the nervous system?

Receptor cell

What is the role of motor neurons in the nervous system?

Conduct impulses to muscles or glands

What allows signals to go from one neuron to another by 'jumping the gap' (synapse) in the nervous system?

Chemical signal

What is the function of sensory neurons in the nervous system?

Conduct impulses inwards to the brain or spinal cord

Which part of the nervous system is responsible for sensory perception, motor function regulation, and sleep-wake consciousness?

Thalamus

What part of the brain is associated with reasoning, planning, parts of speech, movement, emotions, and problem solving?

Frontal Lobe

Which part of the brain is responsible for visual processing?

Occipital Lobe

What injury can result in the inability to move or function?

Spinal Cord Injury

What part of the brain is responsible for perception and recognition of auditory stimuli, memory, and speech?

Temporal Lobe

Which part of the brain controls motor movement and coordination?

Cerebellum

What structure divides the cerebrum into left and right hemispheres allowing communication between both hemispheres?

Corpus Callosum

What section of the brain is associated with learning, intelligence, emotions, personality, judgment, and all voluntary activities of the body?

Cerebrum

Test your knowledge about the nervous system and neurons with this quiz. Learn about how the nervous system receives and sends information, monitors changes in the environment, and controls various bodily functions.

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