UNIT 1 Human beings. Science and health.

Buenos días chicos/as,

Os dejo las imágenes y audios para repasar el tema 1, junto con la ficha que os he entregado de las frases especiales :)

1.Humans interact with their environment in three different stages: detecting stimuli, generating orders and responding to orders.

2.Receptor cells detect stimuli and send signals to the nervous system.

3.The nervous system transmits, interprets and responds to nerve impulses.

4.The nervous system is made up of neurons, whose parts are axon and dentrites, and they form nerves.

5.Our sense organs are our eyes, ears, olfactory epithelium in the nose, taste buds in the mouth and skin.

6.The principal effectors are the skeleton and the muscles, which generate movement.

7.The eyes detect light around us, send the information through the optic nerve to the brain and we can see.

8.The ears detect sound vibrations in the air, send the information through the auditory nerve to the brain and we can hear.

9.The taste buds detect substances in the mouth, send the information through the gustatory nerve to the brain and we can taste.

10.In the nose, the olfactory bulb detects substances in the air, send the information through the olfactory nerve to the brain and we can smell.

11.In the skin, the touch receptor cells send the information to the spinal cord and the brain and we can feel the pressure, the pain and the temperature.

12.The skeleton is a structure formed by bones and joints.

13.The skeleton provides our body with a structural frame and protects the organs.

14.The muscles are attached to the skeleton by tendons and we need muscles to move.

15.We can prevent certain diseases by living a healthy lifestyle.

¡Buen puente!

Auxi