Unit 2 sensitivity and coordination dolores s

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Transcript of Unit 2 sensitivity and coordination dolores s

SENSITIVITY SENSITIVITY AND AND

COORDINATIONCOORDINATION

DOLORES GARCÍADOLORES GARCÍA

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.

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

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.

The sense: The sense: SMELLSMELL

The nose is the orgarn of smell. The receptors of smell are in the pituitary gland, inside the nostrils.

The sense: The sense: HEARINGHEARING

The ear is the organ of hearing. It has three parts.

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

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

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

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

THE PERIPHERICAL NERVOUS THE PERIPHERICAL NERVOUS SYSTEMSYSTEM

SENSORY NERVESSENSORY NERVESTransmit informationTransmit information

Is made up ofIs made up of

MOTOR NERVESMOTOR NERVESTransmit responsesTransmit responses

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

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.

THE ENDTHE END