This document summarizes the key human sensory and motor systems. It describes the main organs for sight (eye), smell (nose), hearing (ear), touch (skin), and taste (tongue). It outlines the main parts and processes for each sensory organ. It also discusses the nervous system, including the central and peripheral divisions, neurons, and voluntary and involuntary movements controlled by the brain and spinal cord respectively. Finally, it briefly mentions the main bones of the body and types of joints that connect bones.

2. Stimulus is anything you see,hear,touch,
smell or taste . Can be :
• Internal stimuli.
• External stimuli.
 The body has different receptors .
• Internal receptors
• External receptors


3. A respose is the body’s answer to a
stimulus. There are two types:
• Muscular responses
• Glandular responses


4. 


The eye is the organ of sight. Is made up of
the eyeball and protected by the
eyebrows, eyelids and eyelashes.
cornea
pupil





retina
trough
Process :
1. First light goes through the
cornea.
2. Then light passes through the
pupil.
3. After that light passes
through the lens.
4. Finally information in the
retina travels to the brain
through the optic nerve .

5. The nose is the organ of smell.the
receptors of smell are in the pituitary
gland inside the nostrils.
The parts are nostrils and
pituitary glands.


6. 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.


7. PROCESSES:
•
1.The outer ear receives sounds.
2.The middle ear changes sounds into
vibrations.
3.The inner ear changes vibrations into
into nerve impulses that go to the
brain.
•
•
vibration
PARTS:
Ear,ear canal ,eardrum,small
bones,auditory nerve,cochlea.
•
er
•
•
•
•
•
1

8. 
The skin is the organ of touch. It is made
up of three layers.

9. 
The tongue is the organ of taste.
The receptors of taste are in the taste
buds.

10. 


•
•


The nervous system is made up of nerve
centres and nerves.
Nerves centres interpret the information and
develop responses, forming the central nervous
system.
The central nervous system has two parts:
The brain inside the skull. It is made up of the
cerebrum, the cerebellum and the brain stem.
The peripheral nervous system is made up of:
Sensory nerves.
Motors nerves.

12. 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.


13. VOLUNTARY MOVEMENTS:
The brain produces a response in the
case of voluntay movements.
INVOLUNTARY MOVEMENTS:
The spinal cord produces a
response in the case of
involuntary movements.

14. 
HEAD BONES
TEMPORAL, OCCIPITAL, PARIETAL, FRONTAL.
FACIAL BONES:
NASAL, CHEEKBONE,JAWBONE.

TRUNK BONES
STERNUM,RIBS, SPINE,HIPBONE

LIMB BONES
UPPER LIMBS BONES
CLAVICLE, SCAPULA, HUMERUS, ULNA,RADIUS,
CARPAL, METACARPAL, PHALANGES.
LOWER LIMBS BONES
FEMUR, METATARSAL ,PHALANGES,TARSAL,
FIBULA, TIBIA.

15. The joints are located where two or more
bones meet.
there are three types of joints:
• Moveable joints.
• Semi-moveable joints.
• Fixed joints.

17. Tendons are made of flexible and fibrous tissue.
They connect muscles to bones.

18. THE
END
PATRICIA SESMA
LUCIA MARTIN
TERESA ORTEGA
LAURA PRIETO