2. • The sense organs
The sense organs detect and transform stimuli
into nerve impulses. The nerve impulses are
sent to the nervous system which interprets
them as sensations: colours and shapes, sounds,
smells, flavours, heat and cold, etc.
3. • The nervous system
Our nervous system has two parts.
• The central nervous system (formed of the
brain and spinal cord)
• The peripheral nervous system (formed of
nerves).
5. • The effectors
The orders that leave the central nervous system
travel through the nerves to the effectors.
The effectors realice the responses like
producing substances or movements.
6. • The locomotor system
• The locomotor system is formed by the
muscles and tendons of the musculature and
the bones and joints of the skeleton. Thanks
to our locomotor system we can move.
7. • The sense organs
The eye The ear
The skin The pituitary and taste buds
8. Lesson vocabulary
To detect: detectar
To transform: transformar
Stimuli: estímulo
To send : enviar
Shapes: formas
Flavours: sabores
Brain: cerebro
Spinal cord: espina dorsal
Nerves: nervios
Order: orden
To realize: realizar
Responses: respuestas
Muscles: músculos
Tendons: tendones
Bones: huesos
Joints: articulaciones
To can: poder
To move: mover
