unit 2 sensitivity and coordination dolores s
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SENSITIVITY SENSITIVITY AND AND
COORDINATIONCOORDINATION
DOLORES GARCÍADOLORES GARCÍA
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STIMULUS: STIMULUS: A stimulus is A stimulus is anything you see, hear,touch, smell or anything you see, hear,touch, smell or tastetaste..
Can be:Can be: Internal: Internal: come from come from
inside our bodiesinside our bodies
External:External: come from come from outside the body.outside the body.
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RESPONSES: RESPONSES: Is the body’s Is the body’s answer to a stimulusanswer to a stimulus..
There are two types:There are two types:
Muscular responses: are the movements our are the movements our musclesmuscles
Glandular responses: occur occur when glands produce when glands produce substances in responsesubstances in response
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The sense: The sense: SIGHTSIGHT
The eye is the organ of sight. It’s made up of the eyeball and protected by the esyerbrows, eyelids and eyelashes.
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The sense: The sense: SMELLSMELL
The nose is the orgarn of smell. The receptors of smell are in the pituitary gland, inside the nostrils.
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The sense: The sense: HEARINGHEARING
The ear is the organ of hearing. It has three parts.
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TOUCH TOUCH && TASTETASTE
The Skin is the organ of touch. It’s made up of three layers
The tongue is the organ of taste. The receptors of taste are in the taste buds
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THE NERVOUS THE NERVOUS SYSTEM:SYSTEM:
The The Central Nervous System
Interpret the information Develop responses
Is made up of:Is made up of:
The The Peripheral Nervous System ::
Transmit the information
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THE CENTRAL NERVOUS THE CENTRAL NERVOUS SYSTEMSYSTEM
The BRAIN The BRAIN Is inside the skull. Is inside the skull. Is made up of theIs made up of the
– CerebrumCerebrum– CerebellumCerebellum– Brain stem Brain stem
Has two partsHas two parts
The SPINAL CORD The SPINAL CORD Is protected by Is protected by
vertebraevertebrae Is made up of the Is made up of the
many neuronsmany neurons
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VOLUNTARY AND VOLUNTARY AND INVOLUNTARY MOVEMENTSINVOLUNTARY MOVEMENTS
The The SPINAL SPINAL CORDCORD produces response produces response in the case of in the case of involuntaryinvoluntary movementsmovements
The The BRAINBRAIN produces response produces response in the case of in the case of voluntaryvoluntary movementsmovements
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THE PERIPHERICAL NERVOUS THE PERIPHERICAL NERVOUS SYSTEMSYSTEM
SENSORY NERVESSENSORY NERVESTransmit informationTransmit information
Is made up ofIs made up of
MOTOR NERVESMOTOR NERVESTransmit responsesTransmit responses
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The SKELETAL The SKELETAL SYSTEM:SYSTEM:
The SKELETON is The SKELETON is made up of all the made up of all the bones in the body.bones in the body.
The JOINTS are The JOINTS are located where two or located where two or more bones meet. more bones meet. Can be:Can be:– Moveable jointsMoveable joints– Semi-moveable jointsSemi-moveable joints– Fixed jointsFixed joints
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The MUSCULAR The MUSCULAR SYSTEM:SYSTEM: The The
MUSCULATURE is MUSCULATURE is the set of muscles the set of muscles in the body.in the body.
TENDONS are TENDONS are made of flexible made of flexible and fibrous tissue. and fibrous tissue. They connect They connect muscles to bones.muscles to bones.
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THE ENDTHE END