C.8

​originate(s) on dendrites and cell bodies

If a person had a problem where neural stem cells could not differentiate this would affect

These glial cells act as scavengers

can involve ion channels regulated by chemicals

Size increases if stimulus strength increases

When​ voltage-gated K​+ channels of a resting neuron​ open

If the​ sodium-potassium pumps in the cell membrane of a neuron fail to​ function, over time

Ion concentrations are first significantly affected after​ ________ action​ potential(s)

​require(s) a minimum stimulus to occur

In order to signal a stronger​ stimulus, action potentials become

Answer the following,

The ____ occupies the least amount of cell volume

What would happen to the membrane potential if a resting cell suddenly became more permeable to Ca^2+?

Tetrodotoxin, a toxin that blocks​ voltage-gated Na channels. What effect does this substance have on neuron function?

Astrocytes can be found in which division?

The cell body of neurons is about

Which type of neuron only has one process extending from the cell body?

During childhood, growth and development of the brain PRIMARILY occurs by increasing

The rising phase of the action potential is due to

Answer the following

What triggers exocytosis of synaptic vesicle contents from an axon terminal?

Which is the difference between the synaptic cleft and the​ synapse?

Graded potentials may

Specialized immune cells that are confined to the CNS

Which will best increase the conduction rate of action potentials?

Clusters of nerve cell bodies in the peripheral nervous system are called

The axon is connected to the cell body by the

Satellite cells are located in which division

If the results of an experimental drug treatment included pupil dilation, high blood pressure, and high blood glucose...

A stronger stimulus to a neuron results in ___

How would the absolute refractory period be affected if​ voltage-gated sodium channels remained​ inactivated?

Action potentials are mainly associated with the membranes of

Which is the correctly written Nernst​ equation?

Information coming into the central nervous system is transmitted along​ ________ neurons.

Which glial cells form myelin in the central nervous system?

The portions of a neuron that extend off of the roughly spherical cell body are usually collectively called

Neurotransmitter is stored and released from

Cells that myelinated several axons

The region where the axon terminal meets its target cell is called the

The afferent and efferent neurons together form the

The brain and spinal cord together compose the

Exocrine glands, smooth muscles, and cardiac muscles are controlled by the

Glial cells

The term hyperkalemia specifically indicates too much potassium in which fluid​ compartment?

Some neurotoxins work essentially the same way as some local​ anesthetics, which is to

A change in the conditions in the axon terminal can cause a change in the environment of the cell body as a result of

Highly branched cells that transfer nutrients between blood vessels and neurons

Ion channel inactivation is

Myelin is formed by

Repair of damaged neurons can be assisted by certain neurotrophic factors secreted by the

Choose the items that are correctly matched

In general the nervous system is made up of which two types of cells?

How would blocking retrograde transport in an axon affect the activity of a neuron?

The enteric nervous system is a network of neurons that function in controlling excretion, particularly urination

A damaged neuron has a better chance of survival and repair if the​ ________ is/are undamaged.

These glial cells may contribute to Lou Gehrig's disease

The Nernst equation can be used to predict

What effect would it have on the Goldman-Hodgkin-Katz equation if the membrane were not permeable to sodium or chloride?

What would the sudden increase in axonal permeability to sodium cause?

Cells that myelinated only one axon each; multiple per axon

The gaps between adjacent Schwann cells on an axon are called nodes of Ranvier

Which of the following neurons or groups of neurons is NOT considered to be a part of the efferent​ pathway?

Products from the cell body of a neuron are transported to the axon terminals by

If the resting​ axon's membrane becomes more permeable to potassium​ ions,

may be hyperpolarizing

Anterograde and retrograde axonal transport are forms of​ ________ transport

Cells that create a selectively permeable epithelial layer to separate fluid compartments of the CNS

What does the Goldman-Hodgkin-Katz equation take into account that the Nernst equation does NOT?

Autonomic motor neurons are subdivided into the

Glial cells communicate primarily using

Which two properties determine how fast neurons conduct action potentials?

The point during an action potential when the inside of the cell has become more positive than the outside is known as

An influx of Na+ ions depolarizes the membrane of an axon.

The sodium-potassium exchange pump

cells that are a source of neural stem cells

In​ general, the nervous system is made up of which two types of​ cells?

Neurotransmitters are released from the

In the membrane of a resting nerve cell, when chemically gated Cl channels open,

Exocrine​ glands, smooth​ muscles, and cardiac muscles are controlled by the

Identify the FALSE statement (word key...amp=amplitude)

The absolute refractory period of an action potential

Autonomic motor neurons are subdivided into the

The neurons of the central nervous system are also known as

The major determinant of the resting potential of all cells is

The major determinant of the resting potential of all cells is

A home satellite dish receives signals from a satellite in outer space, allowing your television to display TV shows.

The tip of an embryonic nerve cell's axon is called a

The channelopathy known as Q-T syndrome is a result of mutation in ___ channels.

Answer the following

Cells that myelinate several axons are known as

Arrange the following events in the proper sequence

Myelin is formed by

​Voltage-gated channels are located

When comparing action potentials to graded​ potentials, an/two important distinguishing​ characteristic/s is/are

Tracts of axons that transfer information to and from the brain?

The primary problem in hyperkalemia is that

When sodium channels open during an action​ potential, the opening is caused by

Which of the following would have the fastest action potentials?

Cells in the PNS that form myelin