Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Anat. of Neuron
PSY2583 Anat. of neuron, classes, neuroanatomical techniques, etc
| Question | Answer |
|---|---|
| What are dendrites? | Short processes emitting from cell body that receives most of the synaptic contact with other neurons |
| What is a cell body? | Control center of the neuron |
| What is a cell membrane? | Semipermeable membrane/layer that encloses the neuron |
| What is an axon hillock? | Cone-shaped region at the junction between the cell body and axon. Causes an electrical charge (action potential) |
| What is an axon? | Long, narrow process that emits from the cell body. Carries the electrical charge (action potential) |
| What is myelin? | Insulates the axon and increase the speed of electrical impulses |
| What are Nodes of Ranvier? | Gaps between myelin |
| What is a button? | Endings of an axon branch that release chemicals into synapses |
| What are synapses? | Gaps between neurons where chemical signals are transmitted |
| What connects the cell body to the axon? | Axon hillock |
| What surrounds axons and speeds up electrical processes | Myelin sheath |
| What are the gaps between myelin called? | Nodes of Ranvier |
| What are the ending of axon branches called? | Buttons |
| What are gaps between adjacent neurons called? | Synapses |
| What are the 4 classes of neurons? | Unipolar, Bipolar, Multipolar, Multipolar Interneuron |
| What is a unipolar neuron? | A single process that divides into a dendrite and an axon. Typically found in the spinal cord. |
| What is a bipolar neuron? | Two processes (a dendrite and an axon) extending from either side of a cell body. Typically found in the brain. |
| What is a multipolar neuron? | Multiple processes including one axon and several dendrites. Typically found in the spinal cord. |
| What is a multipolar interneuron? | A cell body with no axon. Intergrades neural activity in the brain. |
| What is the most common type of neuron? | Multipolar |
| What neurons are typically found in the brain? | Bipolar and multipolar interneuron |
| What neurons are typically found in the spinal cord? | Unipolar and multipolar |
| What neuron has a dendrite and an axon extending from a single process? | Unipolar |
| What neuron has a dendrite and an axon extending from either side of a cell body? | Bipolar |
| What neuron has many dendrites and a single axon? | Multipolar |
| What neuron has many dendrites and no axon? | Multipolar interneuron |
| What is a process? | Projection from a neuron |
| What are oligodendrocytes? | Cells that make up the myelin sheet in the CNS |
| What are Schwann Cells? | Cells that make up the myelin sheet in the PNS |
| Which cells make up the myelin sheet around the CNS? | Oligodendrocytes |
| Which cells make up the myelin sheet around the PNS? | Schwann Cells |
| What is the purpose of a Golgi stain? | Paints neurons black to study structure and organization |
| What is the purpose of a Nissl stain? | Paints neurons white to study density |
| What is the purpose of electron microscopy? | Shines beam on neurons to capture extreme detail |
| What kind of stain paints neurons black to study structure and organization? | Golgi stain |
| What kind of stain paints neurons white to study density? | Nissl stain |
| What technique shines a beam on neurons to capture extreme detail? | Electron microscopy |
| What are the 2 types of neuroanatomical tracing? | Retrograde and Anterograde |
| What is retrograde tracing? | Identifies where signals come from |
| What is anterograde tracing? | Identifies where signals go to |
| What kind of tracing identifies where a signal came from? | Retrograde |
| What kind of tracing identifies where a signal is going? | Anterograde |
Created by:
juangon
Popular Biology sets