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The Nervous System and the Endocrine System: Communicating Within the Body Chapter 2, Pages 63-70 Essentials of Understanding Psychology- Sixth Edition.

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Presentation on theme: "The Nervous System and the Endocrine System: Communicating Within the Body Chapter 2, Pages 63-70 Essentials of Understanding Psychology- Sixth Edition."— Presentation transcript:

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2 The Nervous System and the Endocrine System: Communicating Within the Body Chapter 2, Pages 63-70 Essentials of Understanding Psychology- Sixth Edition PSY110 Psychology © Richard Goldman October 4, 2006

3 Complexity One neuron may connect to 80,000 other neurons Total neural connection may exceed one quadrillion (1,000,000,000,000,000 – 15 zeros) Endocrine system communicates by using hormones that travel through the blood system

4 The Nervous System Central Nervous System (CNS) – Brain & Spinal Cord Peripheral Nervous System – From spinal cord to exremities

5 Spinal Cord Conduit Reflexes  Sensory (afferent) neurons  Motor (efferent) neurons – (muscles)  Interneuron – connect sensory to motor

6 Peripheral Nervous System Somatic (Voluntary) – Senses & Voluntary Movement Autonomic (Involuntary) – Unconscious bodily functions  Sympathetic – Prep the body for emergency (fight or flight)  Parasympathetic – Calm the body

7 Nervous System

8 Evolutionary and Behavioral Genetics predisposes people to behave in particular ways or to have particular characteristics

9 Endocrine System Hormones (chemical messengers) affect function and growth of parts of the body Pituitary (Master Gland) – Regulated by the hypothalamus – Responsible for growth & homeostasis Thyroid (&Parathyroid) – Metabolism Thymus – Immune system Adrenal Gland & Pancreas – Produce Insulin & Glucagon – control sugar metabolism Ovary & Testis – Produce sex hormones

10 Endocrine System


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