People Jump when watching scary movies because the loud noise or flashing picture (the stimulus) passes through out eyes or ears (the receptor) and our endocrine system responds to the surroundings thus sending electrical impulses to the brain causing our muscles (the effectors) to spasm causing us to Jump or scream. In addition, the blood has a increased amount of hormonal adrenaline and a higher heart rate. Hormones Hormones are a chemical substance . He control many of processes going on inside your body. Special glands make and released (secrete) these hormones into your body.

Then the hormones are carried around your body to their target organs In the bloodstream. They can act very quickly but often their effect are quite slow and long lasting. Hormones are more for the feelings, as adrenaline makes your heart beat faster and excited, and ready to fight or run away. Therefore, hormones set the mood and make you aware, released by fear, which is triggered by creepy music and the imagination.Now the nerves are responsible for reflexes, like If something suddenly umps at you and attacks, you Jump because you’re scared. This Is also why some people scream, because screams could attract someone who could help. [Pl] Nervous system Your nervous system lets you take In Information about the world around you and respond In the right way.

However some of your responses are so fast that they happen without giving you time to think when you touch something hot or sharp you pull back because you feel then pain . Automatic responses Like these are know has reflexes . Pl] here Is picture of all the nerves In you body .

Eyes = sensitive to light e. G. Reading a book Nose + tongue -chemical e. G. Smelling an apple, eating an apple Ears = changes In position e. G. Loud bang The difference of hormonal and nervous system In your body hormonal Is chemical and nervous In electrical. Renee octagons Path of the reflex are : Receptor Motor neurons sensory neurons effectors relay neurons (in the spine ) Receptors = detect changes in the environment Sensory neurons = carry electrical impulse to CANS Co-ordination = co-ordination information (CANS)Motor neurons = carry impulse from the CANS neurons to effectors CANS= seine and brain Effectors + muscles or glands that produce the response [pick] An electrical impulse passes from the sensory receptor (nerve ending) Along the sensory neurons to the spinal cord .

The impulse then passes to a relay neurons and straight back along a motor neurons to the effectors organ (e. G. Muscles) The time between the stimulus and the reflex action is as short as possible. It allows you to react to danger without thinking about it.