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WorksheetsBIOL 1010 Nervous System Part 1
Total questions: 12
Worksheet time: 6mins
The central nervous system is composed of... select TWO options!
brain
limbs
spinal cord
thoracic cavity
________ are accessory cell types that can provide support and nourishment to neurons.
Nephrons
Neurons
Schwann cells
Neuroglia
What region of a neuron contains the nucleus?
Dendrite(s)
Cell body
Axon
Axon terminal
Which direction does a nerve impulse travel?
From the axon terminal to the Nodes of Ranvier
From the axon terminal to the cell body
From the cell body to the dendrites
From the cell body to the axon terminal
The Myelin Sheath is composed of a specialized cell type called...
Goblet cells
Axons
Neurons
Schwann cells
What are the gaps on a myelinated axon called that have no myelin?
Nodes of Ranvier
Neuronal gaps
Nodes of Schwann Cells
Interneurons
Resting potential is measured at ______ mV.
+35
+70
-55
-70
An action potential is measured at ______ mV.
+35
-70
+70
-55
During depolarization, ________ ions move into the axon.
Sodium
Potassium
Calcium
Iron
During repolarization, _________ ions move out of the axon.
Sodium
Potassium
Calcium
Iron
Non-myelinated axons have a way to prevent sodium channels from opening after an action potential has passed. What is this called?
Repolarization
Nerve impulse
Refractory period
Saltatory conduction
Nerve impulses travel faster on non-myelinated axons.
True
False
