PSYCH 112 Chapter Notes - Chapter 3: Reuptake, Oligodendrocyte, Somatic Nervous System
Document Summary
Cell body (soma)- vital to survival of neuron, creates the components necessary to make the neuron. Dendrites- extensions of the soma, act as neural receivers of information. Axons/axon terminals- act as neural transmitters , transmit synaptic vesicles through the axon until they reach the axon terminal and burst to release neurotransmitters. Synapse- gap between neurons that neurotransmitters are released into and travel through. Neurotransmitters (from the pre-synaptic neuron) in the synapse bind with receptor cites along dendrites of other neurons (in the post-synaptic neuron) to facilitate communication between neurons, called neurotransmission: neurotransmission can be halted by reuptake of neurotransmitters. Glial cells- surrounding cells of the nervous system, have several types: Astrocytes- involved in thought, memory, and immune system. Abundant in the blood-brain barrier around blood vessels to block out large particles and bacteria. Oligodendrocyte- promotes new connections among neurons and also make up the myelin sheath.
