basics+on+nerves+and+hormones.

__**Nerves and hormones-**__ The nerves transmits information to and from **the brain** and **spinal cord**. The brain and spinal cord make up the **central nervous system.** The information travels from the eyes to the brain along the **nerves**, as fast moving **electrical impulses**(signals). Nerves contain special cells called **nerve cells.** The brain sends more **impulses** to the muscles in your arms and hand, telling them **how** and **where** to move.
 * For example:** hand-eye cordination.



__**Hormones-**__ As well as nerves, **hormones** carry information between **organs.** Hormones are **chemicals** they are made by certain glands. Glands are organs that make and release **useful substances**. The **release process** is called **secretion. Glads** secrete hormones in the blood. The **blood stream** carries the hormones around the body.

**__An example__** of a hormone is **adrenaline.** In the excitement of a match, **adrenaline** us secreted in the player's body.