PPT-Neurotransmitters: Acetylcholine and Dopamine

Ms Carmelitano Acetylcholine First Neurotransmitter to be identified and most common in the human body Function Helps control muscle contraction Plays a role in the development of memory of the hippocampus. Synapses are a fundamental part of neural pathways as they regulate decision-making in terms of exciting or inhibiting the post-synaptic neurons. . Review: . Action potentials (AP) reach terminal bud of the pre-synaptic neuron. . Carl Sagan. Lobes of the brain (forebrain). Midbrain/ Hindbrain. Protection and Blood Supply. Structure and Functions of a Neuron. Synaptic Transmission. Neurotransmitters. Overview. Central Nervous System. Neurons . do. not . undergo mitosis!. The . Nervous System can transmit impulses as fast as 100 meters per . second!. If . we lined up all the neurons in our body it would be around 600 miles . long!. The function of neurotransmitters. What is this?. What does it do?. Where are the neurotransmitters?. Can you name any neurotransmitters?. Lets remind ourselves how neurotransmitters work. Lets remind ourselves how neurotransmitters work. Synapse. : space between a neuron’s axon and it’s target. Also called synaptic cleft.. Pre. synaptic neuron: before cleft . Post. synaptic neuron: after cleft. Presynaptic. Endplate. : contains vesicles which hold . The function of neurotransmitters. What is this?. What does it do?. Where are the neurotransmitters?. Can you name any neurotransmitters?. Neurotransmitter molecules are released from the end of the presynaptic cell (the axon) into the space between the two nerve cells (the synapse). Having travelled across the synaptic gap or cleft, molecules may then be ‘taken up’ by specially shaped receptor sites on the postsynaptic nerve cell (the dendrite) and so the chemical message is passed on. The relationship between the neurotransmitter molecule and the receptor site is like a lock and key, molecules will only fit certain receptor sites.. NETWORK INTERACTIONS IN SZ – THERAPEUTIC IMPLICATIONS. Awarded the Nobel Peace prize for their work on neural transmission.. Arvid. is best known for his work into the relationship between dopamine and Parkinson’s disease.. Substance abuse. Limbic . system creates an appetite that drives you to seek out those things. .. The reward circuitry is activated—with dopamine carrying the message. . The result is less dopamine signaling in the brain, what the scientists call “down regulation.” . Nuerotransmitters. How to balance your brain naturally. Neurotransmitters are chemical messengers that help relay information throughout the body. . They . transmit information through nerve cells called neurons. . Ms. . Carmelitano. Introduction. Neurons are the building blocks of behavior. The 10 to 100 billion neurons make about 13 trillion connections with each other over the synapses. Essential Question: How do messages cross the synapses?. Spinal cord. Transmits messages from the brain to the other areas of the body.. Efferent – away from the brain out to the body. Produces muscle action. Afferent – from the periphery to the brain. I.B. Learning Outcome. and Objective. B6- Using one or more examples, explain the effects of neurotransmission on human behavior.. I can identify the parts of a neuron. I can explain the how neurons communicate. sciences concerned in one way or another with behavior of humans and lower organisms . . and . encompasses all the discipline that explore the activities of the natural . world . . neurotransmitter . is a chemical compound that transmits an impulse from a nerve cell to a target cell. Target cells may be another nerve cell, a muscle cell, or a gland cell.. Learning Goal . Describe the role of amines as neurotransmitters..