1. Module 10

2. Nervous system

3. The Chemical Mind

4. The Nervous System

6. 3 Different Types of Neurons
Sensory (afferent) neuron- send information from the body’s tissues and sensory organs inward to the brain and spinal cord, which process information. (We have a few million)
Inter-neurons- enable internal communication within the central nervous system (Billions and Billions)
Motor (efferent) neurons- sends instructions to the body’s tissues (A few million)

7. You don’t believe me?

8. A Simplified Neural Network
Neurons that learn to work together as a team.

9. The Major Endocrine Glands

10. The Endocrine System
Endocrine system- the body’s “slow” chemical communication system
Hormones- chemical messengers, which originate in one tissue and travel through the bloodstream and affect other tissues, including the brain.

12. Hormones vs. Neurotransmitters
Some hormones are chemically identical to neurotransmitters– but are much slower.
Several seconds or more elapse before the bloodstream can carry a hormone from an endocrine gland to its target tissue.
Hormones influence growth, reproduction, metabolism, mood— they keep everything in balance while we respond to stress, exertion, and our own thoughts.

13. Adrenal Glands
In Danger…the autonomic nervous system orders the adrenal glands (on top of the kidneys) to release epinephrine and norepinephrine which increase heart rate, blood pressure, and blood sugar—providing us with a surge of energy.
Also called epinephrine=adrenaline and norepinephrine=nonadrenaline
Used to treat cardiac arrest

14. Epi…. Pen
m/news/articles/ /how-marketing-turned- the-epipen-into-a-billion- dollar-business

15. Who’s thinking??? Epinephrine is a hormone? And a neurotransmitter?
Yes.

16. Pituitary Gland
The most influential endocrine gland is the pituitary gland—a pea sized structure in the base of the brain, controlled by the hypothalamus.
The pituitary releases growth hormones and its secretions also influence the release of hormones by other glands.