Chapter 5 psycology

Types of Neurons (Select all apply)

• Sensory Neurons

• Motor Neurons

• Interneurons

• Peripheral nervous system

Parts of the Neuron (select all apply)

• Cell body: Keeps the cell alive

• Dendrites: Receives messages

• Axon: Sends messages to other neurons

• Cell Membrane: Porous "skin" that permits certain chemicals to flow into and out if the cell while blocking others

The Resting Potential (select all apply)

• Cell membrane

• Selective Permeable

• Resting Potential

• Action Potential

Synaptic Transmission: How Neurons Communicate

(Select only 2)

• Synapse : meeting point between neurons

• Neurotransmitter : packets of a chemical substance released when an action potential reaches an axon terminal

• Neurogenesis : process of creating new neurons

The Building Blocks of the Brain (Select ALL apply)

• Central Nervous System: Brain and Spinal cord

• Peripheral Nervous System: Nerves that serve as extensions from the central nervous system

• Neuron: Single cell of the nervous system

• Nerve: Bundle of many neurons

What are the developments of Neurons (Select all that apply)

• Neurongenesis: Process of creating new nuerons

• Occurs during the first 20 weeks after conceptions

• Differentiation

• Synaptic Pruning

• Selective cell death (apoptosis)

What are methods for studying the Human Brain (Select ALL that apply)

• Nuclei and Tracts

• Observing Behavioral deficits that occur when a part of the Brain is destroyed (lesions) or temporarily inactivated

• Artificial stimulation of the Brain

• Electrically, Chemically, Magnetically

• Recording changes in neutral activity

What is the order the electrical impulse travels?

• Dendrite --> Soma/cell body (contains nucleus) --> Axon (covered by the Myelin sheath) --> Axon termonal

• Soma/cell body (contains nucleus) --> Dendrite -- > Axon (covered by the Myelin sheath) --> Axon termonal

• Axon termonal --> Axon (covered by the Myelin sheath) --> Soma/cell body (contains nucleus) --> Dendrite

Action Potential Steps

(Read the step for understanding and click ALL answer choices for the correct answer!!)

• 1. 1. The neuron receives input from other neurons on its dendrites and cell body

• 2. 2. It sends its own output, a neural impulse, down the axon to the axon terminals

• 3. 3. The myelin sheath is not part of the neuron; it is formed of separated glial cells that are wrapped around the axon