PATRICIA LÓPEZ ÁLVAREZ
STIMULI

A stimulus is anything you
see,hear,touch,smell or taste.
Internal stimuli come from

inside our bodies, like th...
The body has different receptors
to receive different types of
stimuli.
INTERNAL RECEPTORS receive the
internal stimuli ou...
RESPONSES
A response is the body´s answer to
a stimulus.
MUSCULAR RESPONSES are the
movements our muscles make in
response...
THE SENSES
SIGHT
SMELL
HEARING
TOUCH
TASTE
SIGHT: The eye is the organ of sight. It is
made up of the eyeball and protected by
the eyebrows, eyelids and eyelashes.
First, light goes through the cornea.
Then light passes through the pupil,the opening of

the iris.
After that light pa...
SMELL
The nose is the organ of smell.The receptors of smell

are in the pituitary gland, inside the nostrils.
HEARING
The ear is the organ of hearing.It has three parts:
. The outer ear includes the ear and ear canal.
. The middle e...
First ,the outer ear receives sounds.
Then the middle ear changes sounds into vibrations.
Finally the inner ear changes...
TOUCH
The skin is the organ of touch.It is made up of three

layers.
Hypodermis,dermis and epidermis.
TASTE
The tongue is the organ of taste.
The receptors of taste are in the taste buds.
There are taste buds all around t...
THE NERVOUS SYSTEM
The nervous system is made up of nerve centres and

nerves.
Nerve centres interpret the information a...
THE CENTRAL NERVOUS SYSTEM
HAS TWO PARTS:
The brain is inside the skull.It is
made up of cerebrum,the cerebellum
and the b...
THE PERIPHERAL NERVOUS
SYSTEM IS MADE UP OF:
Sensory nerves

Motor nerves
NEURONS

Both the central and

peripheral nervous systems
are made up of specialised
cells called NEURONS.

They are mad...
VOLUNTARY
MOVEMENTS
.SENSORY NERVES
.BRAIN
.MOTOR NERVES
INVOLUNTARY MOVEMENTS
The spinal cord produces a response
Sensory nerves transmit information
about involuntary movements ...
THE SKELETON AND MUSCULAR
SYSTEM
SKELETON

MUSCULATURE
THE SKELETON
The skeleton is made up of all the bones in the body.
HEAD BONES
There are two groups,SKULL BONES and FACIAL

BONES. The skull bones protect the brain.
TRUNK BONES
There are two groups,the spine and the rib cage.The

spine protects the spinal cord and the rib cage
protects...
LIMB BONESupper limb bones are in the
lower limbs bones. The

There are two groups ,the upper limb bones and the

arms an...
JOINTS
The joints are located where two or more bones

meet.Bones are connected by resistant fibres called
ligaments.
THERE ARE THREE TYPES OF JOINTS:
Moveable joints.
.Semi-moveable joints
Fixed-joints.
THE MUSCULATURE
The musculature is the set of muscles in the body.

Locomotor muscles are connected to the bones.
When th...
HEAD MUSCLES
HEAD MUSCLES
.Masseter.

Buccinator.

Orbicular
MASSETER
BUCCINATOR
ORBICULAR
TRUNK MUSCLES.
.Sternocleidomastoid.
.Abdominal and pectoral.
.Intercostal.
.Trapezius.
LIMB MUSCLES

We use the biceps to bend the arm,the
triceps to lower it and the deltoid to
raise it.

We use the quadricep...
TENDONS
Tendons are made of flexible and fibrous tissue. They

connect muscles to bones.
They cannot contract or relax l...
THE END
Unit 2 sensitivity &  coordination patricia s
Unit 2 sensitivity &  coordination patricia s
Unit 2 sensitivity &  coordination patricia s
Unit 2 sensitivity &  coordination patricia s
Unit 2 sensitivity &  coordination patricia s
Unit 2 sensitivity &  coordination patricia s
Unit 2 sensitivity &  coordination patricia s
Unit 2 sensitivity &  coordination patricia s
Unit 2 sensitivity &  coordination patricia s
Unit 2 sensitivity &  coordination patricia s
Unit 2 sensitivity &  coordination patricia s
Unit 2 sensitivity &  coordination patricia s
Unit 2 sensitivity &  coordination patricia s
Unit 2 sensitivity &  coordination patricia s
Unit 2 sensitivity &  coordination patricia s
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Unit 2 sensitivity & coordination patricia s

  1. 1. PATRICIA LÓPEZ ÁLVAREZ
  2. 2. STIMULI A stimulus is anything you see,hear,touch,smell or taste. Internal stimuli come from inside our bodies, like the feeling of thirst. External stimuli come from outside the body,like the smell of a cake or the texture of a jumper.
  3. 3. The body has different receptors to receive different types of stimuli. INTERNAL RECEPTORS receive the internal stimuli our bodies produce. EXTERNAL RECEPTORS receive external stimuli.
  4. 4. RESPONSES A response is the body´s answer to a stimulus. MUSCULAR RESPONSES are the movements our muscles make in response to a stimulus. GLANDULAR RESPONSES occur when glands produce various substances in response to a stimulus.
  5. 5. THE SENSES SIGHT SMELL HEARING TOUCH TASTE
  6. 6. SIGHT: The eye is the organ of sight. It is made up of the eyeball and protected by the eyebrows, eyelids and eyelashes.
  7. 7. First, light goes through the cornea. Then light passes through the pupil,the opening of the iris. After that light passes through the lens which focuses the imagine on the retina. Finally the information in the retina travels to the brain through the optic nerve.
  8. 8. SMELL The nose is the organ of smell.The receptors of smell are in the pituitary gland, inside the nostrils.
  9. 9. HEARING The ear is the organ of hearing.It has three parts: . The outer ear includes the ear and ear canal. . The middle ear includes the eardrum and the small bones. . The inner ear includes the cochlea and the auditory nerve.
  10. 10. First ,the outer ear receives sounds. Then the middle ear changes sounds into vibrations. Finally the inner ear changes vibrations into nerve impulses that go to the brain.
  11. 11. TOUCH The skin is the organ of touch.It is made up of three layers. Hypodermis,dermis and epidermis.
  12. 12. TASTE The tongue is the organ of taste. The receptors of taste are in the taste buds. There are taste buds all around the tongue.
  13. 13. THE NERVOUS SYSTEM The nervous system is made up of nerve centres and nerves. Nerve centres interpret the information and develop responses, forming the central nervous system. Nerves transmit information,forming the peripheral nervous system.
  14. 14. THE CENTRAL NERVOUS SYSTEM HAS TWO PARTS: The brain is inside the skull.It is made up of cerebrum,the cerebellum and the brain stem. The spinal cord is made up of many neorons. It is protected by vertebrae.
  15. 15. THE PERIPHERAL NERVOUS SYSTEM IS MADE UP OF: Sensory nerves Motor nerves
  16. 16. NEURONS Both the central and peripheral nervous systems are made up of specialised cells called NEURONS. They are made up of a cell body, dendrites and axons.
  17. 17. VOLUNTARY MOVEMENTS .SENSORY NERVES .BRAIN .MOTOR NERVES
  18. 18. INVOLUNTARY MOVEMENTS The spinal cord produces a response Sensory nerves transmit information about involuntary movements to the spinal cord. The spinal cord produces a very fast response and transmits it to the muscles through the motor nerves.
  19. 19. THE SKELETON AND MUSCULAR SYSTEM SKELETON MUSCULATURE
  20. 20. THE SKELETON The skeleton is made up of all the bones in the body.
  21. 21. HEAD BONES There are two groups,SKULL BONES and FACIAL BONES. The skull bones protect the brain.
  22. 22. TRUNK BONES There are two groups,the spine and the rib cage.The spine protects the spinal cord and the rib cage protects the heart and the lungs.
  23. 23. LIMB BONESupper limb bones are in the lower limbs bones. The There are two groups ,the upper limb bones and the arms and the lower limb bones are in the legs.
  24. 24. JOINTS The joints are located where two or more bones meet.Bones are connected by resistant fibres called ligaments.
  25. 25. THERE ARE THREE TYPES OF JOINTS: Moveable joints.
  26. 26. .Semi-moveable joints
  27. 27. Fixed-joints.
  28. 28. THE MUSCULATURE The musculature is the set of muscles in the body. Locomotor muscles are connected to the bones. When they contract or relax, they move the bones.
  29. 29. HEAD MUSCLES
  30. 30. HEAD MUSCLES .Masseter. Buccinator. Orbicular
  31. 31. MASSETER
  32. 32. BUCCINATOR
  33. 33. ORBICULAR
  34. 34. TRUNK MUSCLES. .Sternocleidomastoid. .Abdominal and pectoral. .Intercostal. .Trapezius.
  35. 35. LIMB MUSCLES We use the biceps to bend the arm,the triceps to lower it and the deltoid to raise it. We use the quadriceps to extend the leg,the gluteus to move it, and the calf muscles to extend the feet.
  36. 36. TENDONS Tendons are made of flexible and fibrous tissue. They connect muscles to bones. They cannot contract or relax like muscles.
  37. 37. THE END

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