Ch. 10: Nervous System Basic Structure and Function Part III The Synapse Synaptic Transmission

Fig. 10.2-a

10.2-b

Synaptic Transmission Neurotransmitters 1. 2. 3. Synaptic Potentials 1. EPSP- 2. IPSP-

Synaptic Transmission Each postsynaptic neuron receives … 1. EPSP > IPSP: 2. IPSP > EPSP:

Synaptic Transmission Neurotransmitters 35 different types ACh- Skeletal muscle contraction Monoamines (epinephrine, norephinephrine, dopamine, seratonin) Amino acids Peptides

Pg 376

Synaptic Transmission Action of Neurotransmitters Electrical impulse… Ca2+… Synaptic vesicles … NT released into … After NT bind to postsyn. neuron Decomposed by … Reuptake-

Pg. 377

Pg. 377

Clinical App. 10.4: Opiates In the Human Body 1. 2. 3. Endorphins

Clinical App. 10.4: Opiates In the Human Body Drug addicts (opiate drugs) 1. 2. 3. Withdrawal

Clinical App. 10.5: Drug Addiction Most illegal drugs originally used… Agonist 1. 2. Antagonist

Clinical App. 10.5: Drug Addiction Nicotine 1. 2. 3. Causes dopamine 4. Increased smoking a. b.

Clincal App. 10.5: Drug Addiction