WT 4e, chap 04-Brain - chapter 4 Neurons,Hormones,and...

Info iconThis preview shows pages 1–17. Sign up to view the full content.

View Full Document Right Arrow Icon
Neurons, Hormones, and  the Brain chapter 4
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
End Competency C. Explain how the brain receives and processes information
Background image of page 2
Overview The nervous system Communication in the nervous system Mapping the brain A tour through the brain The two hemispheres of the brain Two stubborn issues in brain research chapter 4
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
The central nervous system Brain Spinal cord A collection of neurons and  supportive tissue running from the  base of the brain down the center  of the back Protected by spinal column chapter 4
Background image of page 4
Organization of the nervous  system chapter 4
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Structure of a neuron Dendrites Receive information from other  neurons and transmit toward the cell  body Cell body Keeps the neuron alive and determines  whether it will fire Axon Extending fiber that conducts impulses  away from the cell body and transmits  to other cells. chapter 4
Background image of page 6
Your turn Which part of a neuron is tree-like or “branchy”? 1.  Dendrites 2.  The axon 3.  The cell body 4.  The nucleus chapter 4
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Your turn Which part of a neuron is tree-like or “branchy”? 1.  Dendrites 2.  The axon 3.  The cell body 4.  The nucleus chapter 4
Background image of page 8
Neurons in the news Neural regeneration The ability of neurons to grow back  after injury or damage Stem cells Immature cells that renew  themselves and have the potential  to develop into mature cells chapter 4
Background image of page 9

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
How neurons communicate Axon terminals release  neurotransmitter. Neurotransmitter enters  synapse. Neurotransmitter binds to  receptors that it fits. chapter 4
Background image of page 10
Action potential A brief change in electrical voltage that occurs  between the inside and outside of an axon when a  neuron is stimulated. chapter 4
Background image of page 11

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Neurotransmitter Chemical released by a transmitting  neuron at the synapse and capable of  affecting the activity of a receiving neuron chapter 4
Background image of page 12
Major neurotransmitters Serotonin Dopamine Acetylcholine (Ach) Norepinephrine Gamma aminobutyric acid (GABA) Glutamate Endorphins chapter 4
Background image of page 13

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
The endocrine system Endocrine glands  release hormones into  the bloodstream. Hormones regulate  growth, metabolism,  sexual development and  behavior, and other  functions. chapter 4
Background image of page 14
Hormones Melatonin Regulates daily biological rhythms Oxycotin Enhances uterine contractions during labor Adrenal hormones Involved in emotions and stress Cortisol, epinephrine, and norepinephrine Sex hormones Regulate development and functioning of reproductive organs Androgens, estrogens, and progesterone chapter 4
Background image of page 15

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Electroencephalogram A recording of neural activity detected by  electrodes chapter 4
Background image of page 16
Image of page 17
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 42

WT 4e, chap 04-Brain - chapter 4 Neurons,Hormones,and...

This preview shows document pages 1 - 17. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online