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ASU BIO 181 EXAM 3 LATEST ACTUAL EXAM 100 QUESTIONS AND CORERCT DETAILED ANSWERS $9.99   Add to cart

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ASU BIO 181 EXAM 3 LATEST ACTUAL EXAM 100 QUESTIONS AND CORERCT DETAILED ANSWERS

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ASU BIO 181 EXAM 3 LATEST ACTUAL EXAM 100 QUESTIONS AND CORERCT DETAILED ANSWERS Excitatory synapses make the post-synaptic cell less likely to fire. - Answer️️ -False The neural tissues are: - Answer️️ -Spinal cord, sensory neurons, and brain How do the glial cells (i.e., myelin sheath...

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  • September 18, 2024
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ASU BIO 181 EXAM 3 LATEST ACTUAL EXAM 100
QUESTIONS AND CORERCT DETAILED ANSWERS



Excitatory synapses make the post-synaptic cell less likely to fire. - Answer✔️✔️-False


The neural tissues are: - Answer✔️✔️-Spinal cord, sensory neurons, and brain

How do the glial cells (i.e., myelin sheath) speed up the firing of neurons? - Answer✔️✔️-

The cell wraps extensions of a fatty insulating substance (myelin) around the axons of

neurons.

The action potential is: - Answer✔️✔️-A result of the movement of ions.

Receptors are made from membrane-bound polyribosomes. - Answer✔️✔️-True

List the 4 types of glial cells and list a phrase to describe their function. - Answer✔️✔️-

Microglia: cleans up cellular debris- Astrocytes: support and repair neurons- Schwann

Cells: myelinates axons of the neurons in the PNS- Satellite: form the brain-blood

barrier within the CNS

Acetylcholine exocytosed from the presynaptic cell travels to the postsynaptic cell to

start the action potential in the postsynaptic cell. - Answer✔️✔️-True

When the presynaptic cell contacts a muscle cell, the synapse area is called a motor

end plate. - Answer✔️✔️-True

, TITLE: EMILLYCHARLOTTE 2024/2025 ACADEMIC PERIOD
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FIRST PUBLISHED: SEPTEMBER 2024
Potassium ions are at high concentrations inside of cells including in neurons. -

Answer✔️✔️-True

The membrane potential (resting potential) is largely set by the Na-K- ATPase pump. -

Answer✔️✔️-True

Draw an action potential in the axon of a neuron and indicate which ions flow into the

neuron and out of the neuron as the action potential passes at the point where the

electrodes are in the cell. Be sure to assign on the Y-axis the mV of each of these

areas. This should be as described in my lectures. - Answer✔️✔️-

Fast neurons as described in lecture are fast because they are surrounded by a type of

glial cell that results in a myelin coating. - Answer✔️✔️-False

Voltage-gated ion channels open when a protein binds to the receptor. - Answer✔️✔️-

False

The cell body refers to the part of the neurons that begin at the dendrites and extend to

the axon terminal. - Answer✔️✔️-False

Only pre-synaptic neurons are coated with myelin. - Answer✔️✔️-False

The post-synaptic cell can be: - Answer✔️✔️-In glands, muscle cells, neurons

Fast neurons as described in lecture require cytoplasmic signal transduction to open an

ion channel. - Answer✔️✔️-False

Acetylcholine esterase breaks acetylcholine into muscarinic acid - Answer✔️✔️-False

Excitatory synapses cause hyperpolarization of post-synaptic cells. - Answer✔️✔️-False

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