{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

2BrainEnhanced - Myers PSYCHOLOGY(7th Ed Chapter2...

Info icon This preview shows pages 1–14. Sign up to view the full content.

View Full Document Right Arrow Icon
Myers’ PSYCHOLOGY (7th Ed) Chapter 2    Neuroscience, Genetics and Behavior James A. McCubbin, PhD Clemson University Worth Publishers
Image of page 1

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

View Full Document Right Arrow Icon
Neural Communication Biological Psychology branch of psychology concerned with the links  between biology and behavior some biological psychologists call themselves  behavioral neuroscientists,  neuropsychologists, behavior geneticists,  physiological psychologists,  or   biopsychologists Neuron a nerve cell the basic building block of the nervous system
Image of page 2
Neural Communication Dendrite the bushy, branching extensions of a neuron that  receive messages and conduct impulses toward the  cell body Axon the extension of a neuron, ending in branching  terminal fibers, through which messages are sent to  other neurons or to muscles or glands Myelin [MY-uh-lin] Sheath   a layer of fatty cells segmentally encasing the fibers of  many neurons enables vastly greater transmission speed of neutral  impulses
Image of page 3

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

View Full Document Right Arrow Icon
Neural Communication
Image of page 4
Neural Communication Action Potential   a neural impulse;  a brief electrical charge that  travels down an axon generated by the movement of positively  charged atoms in and out of channels in the  axon’s membrane Threshold   the level of stimulation required to trigger a  neural impulse
Image of page 5

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

View Full Document Right Arrow Icon
Neural Communication Cell body end of axon Direction of neural impulse: toward axon terminals
Image of page 6
Neural Communication Synapse [SIN-aps] junction between the axon tip of the sending neuron  and the dendrite or cell body of the receiving neuron tiny gap at this junction is called the  synaptic gap  or  cleft Neurotransmitters chemical messengers that traverse the synaptic gaps  between neurons when released by the sending neuron, neuro- transmitters travel across the synapse and bind to  receptor sites on the receiving neuron, thereby  influencing whether it will generate a neural impulse
Image of page 7

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

View Full Document Right Arrow Icon
Neural Communication
Image of page 8
Neural Communication Serotonin Pathways Dopamine Pathways
Image of page 9

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

View Full Document Right Arrow Icon
Neural Communication
Image of page 10
Neural Communication Acetylcholine [ah-seat-el-KO-leen]   a neurotransmitter that, among its  functions, triggers muscle contraction Endorphins [en-DOR-fins]   “morphine within”  natural, opiatelike neurotransmitters  linked to pain control and to pleasure
Image of page 11

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

View Full Document Right Arrow Icon
Neural Communication Neurotransmitter molecule Receiving cell membrane Receptor site on receiving neuron Agonist mimics neurotransmitter Antagonist blocks neurotransmitter
Image of page 12
The Nervous System Nervous System   the body’s speedy, electrochemical  communication system  consists of all the nerve cells of the peripheral  and central nervous systems Central Nervous System (CNS)   the brain and spinal cord
Image of page 13

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

View Full Document Right Arrow Icon
Image of page 14
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern