Hormones Endocrine System Hormones Humans can send information

Hormones Endocrine System

Hormones • Humans can send information through nerve impulses, • Or through chemical messages called Hormones.

Hormones • Hormones are a chemical substance produced by a gland, carried by the blood, that alters the activity of one or more specific target organs and is then destroyed by the liver

Hormones • Hormones are made in special glands called endocrine glands.

Adrenaline • Adrenaline is designed to help you cope with danger (fight or flight response). • Also called epinephrine it increases heart rate, pulse rate, and blood pressure, Also raises the blood levels of glucose and lipids

So what systems are affected and how? • Name the systems of your body that would be affected by the production of adrenaline. • Talk to your neighbor and be ready to share out. • 1 minute • What did you come up with?

Compare and Contrast Nervous System Endocrine glands Made of… Information transmitted… Speed of transmission Endocrine System Along neurons, in the form of electrical impulses How long does the Lasts a very short effect last time

Compare and Contrast Nervous System Endocrine System Made of… neurons Secretory cells Endocrine glands Information transmitted… Along neurons, in the form of electrical impulses By chemicals called hormones Speed of transmission Very fast along neuron Chemicals travel slower through the blood Effect may last longer How long does Lasts a very the effect last short time

What makes your adrenaline flow? • Read through the different adventures. • Share one that you would love to do and one that you would never do and the reason for each. • If you wouldn’t do any, pick the worst two and if you would do them all, pick two that are the most exciting.