What are the 2 branches of the motor part of the ANS?

1. PNS & ENS
2. Parasympathetic & Sympathetic
3. Sensory & Motor
4. Autonomic Neuron & Motor Neron

B

What is the order of the 3 basic functions of the Nervous System?

1. Sensory, Integrative, Motor
2. Motor, Sensory, Integrative
3. Motor Neuron, Sensory Neuron
4. Skin Receptors

A

What is the purpose of a sensory receptor?

1. Sensory receptors allow the central nervous system to monitor changes in the internal and external environment.
2. Sensory receptors to allow the peripheral nervous system to monitor changes in the internal and external environment.
3. Sensory neurons allow the central nervous system to monitor changes in the external environment.
4. To help the Enteric Nervous System.

A

Which subdivisions of the PNS control voluntary actions?

1. Autonomic nervous system
2. Enteric nervous system
3. Somatic nervous system
4. Autonomic nervous system & Enteric nervous system

C

What is the function of the ENS?

1. To send action potential to nearby axons
2. To produce myelin sheath on Schwann cells
3. To control GI propulsion, acid, and hormonal secretion
4. To produce Earwax

C

Functions of the Nervous System ______________.

1. Detects environmental changes that don't impact the body
2. Allows us to sense various smells, produce speech, and remember events, while providing signals that control body movements and regulates the operation of internal organs
3. Allows us to not sense anything
4. Helps maintain homeostasis .

B

How does the Nervous System carry out its functions ?

1. Its excitable characteristic of nervous tissue, which allows for the generation of nerve impulses.
2. Its excitable characteristic of nervous tissue, which blocks the generation of nerve impulses
3. By using the Parasympathetic Division of the ANS.
4. By secreting Sebum.

A

What cells play a major role in support and nutrition of neurons?

1. Dendrites
2. Cell body
3. Neuroglia
4. Nissl bodies

C

Name the 3 parts of a neuron.

1. Nissl bodies, axon, dendrites
2. Cell body, dendrites, axon
3. cell body, sebaceous gland, hormones
4. cell body, dendrites, gland

B

What part of the neuron is the receiving end ?

1. Trigger zone
2. Cell Body
3. Nissl bodies
4. Dendrites

D

The site of communication between two neurons or between a neuron and an effector cell is called_______________.

1. Slow axonal transport
2. Synaptic end bulbs
3. Synaptic vesicles
4. Synapse

D

Where does the axon conduct impulses ?

1. Away from the cell body toward another neuron or effector cell.
2. Towards the cell body away from another neuron or effector cell.
3. Away from the dendrites toward the myelin sheath of an effector cell
4. Away from and axon terminal toward the cell body

A

What are the 2 main phase an action potential has?

1. Depolarizing, Hyper-polarizing
2. Depolarizing, Repolarizing
3. Threshold, Supra threshold
4. Sub threshold, threshold

B

Axons are classified into 3 groups based on _____________.

1. Axon diameter & temperature
2. Myelination, diameter, and action potential speed.
3. amount of myelin
4. Myelination, temperature, action potential speed.

B

What does not generate or conduct nerve impulses?

1. Neuroglia
2. Nuclei
3. Tracts
4. Nerves

A

What is the function of satellite cells?

1. Produce myelin
2. form and circulate CSF
3. Support cells, surround cell bodies id some neurons
4. None of the above

C

What are the two types of neuroglia in the PNS?

1. Schwann cells & satellite cells
2. Ependymal cells & schwann cells
3. Microglia cells & astrocytes cells
4. Microglia cells & Ependymal cells

A

What is the function of the ependymal cells ?

1. Produce Myelin
2. Participate in phagocytosis
3. form and circulate CSF
4. Help with the BBB

C

Oligodendrocytes myelinated ______________, while Schwann cells myelinated _______________.

1. Several axons, one axon.
2. One axon, several axons
3. None of the ABOVE

A

Schwann Cells produce myelin in the _____ and Oligodendrocytes produce myelin in the _____.

1. ANS, ENS
2. PNS, SNS
3. CNS, PNS
4. PNS,CNS

D

What are the types of neuroglia in the Central Nervous System?

1. Astrocytes, Oligodendrocytes, Microglia
2. Astrocytes, Oligodendrocytes, Microglia, Schwann Cells
3. Astrocytes & Microglia
4. Astrocytes, Oligodendrocytes, Microglia, Ependymal Cells

D

During the depolarizing phase voltage-gated ______ channels open allowing ______ to rush into the cell and make inside of the cell progressively more positive.

1. K+, Na+
2. K+, K+
3. Na+, Na+
4. Na+, K+

C

How are Neurons able to produce electrical signals ?

1. Action potential
2. Graded potential
3. Summation potential
4. Resting membrane potential

D

The RMP of most neurons is _____ millivolts inside is negative.

1. +30
2. -70
3. -55
4. 0

B

Graded potentials are _________ distance and Action potential are __________ distance.

1. Short, Short
2. Long, Short
3. Short, Long
4. None of the above

C

Lack of myelin gives ________ a gray appearance.

1. Gray tracts
2. Gray Axons
3. White Matter
4. Gray Matter

D

Bundles of axons in the CNS are called __________.

1. Ganglia
2. Tract
3. Nuclei
4. Nerve

B

Clusters of cell bodies in the PNS are called _________.

1. Tract
2. Nerve
3. Ganglia
4. Nuclei

C

What is the cause of multiple sclerosis?

1. Autoimmune regeneration of myelin
2. Autoimmune destruction of myelin
3. Autonomic regeneration of myelin
4. Autonomic destruction of myelin

B

A stimulus that is too weak to depolarize the membrane to threshold is called ____________.

1. All or non principle
2. Threshold stimulus
3. Sub threshold stimulus
4. Supra threshold stimulus

C

Substances are synthesized or recycled in the neuron cell body with two systems called _________.

1. Sodium potassium Pumps
2. Slow axonal transport, Fast axonal transport
3. Axonal gates channel , Voltage gated channel
4. Leak channels

B

A neuron's RMP is established by pumps and channels to create _____________

1. Ion gradients
2. Graded potentials
3. Action potentials
4. CSF

A

A stimulus that is just strong enough to depolarize a membrane to threshold is called_________. a single action potential occurs.

1. Sub threshold stimulus
2. Threshold stimulus
3. Supra threshold stimulus
4. Trigger Zone Stimulus

B

Neuroglia support neurons by __________________.

1. Forming the myelin sheath on the axons
2. Forming the BBB, myelin sheath around neuronal axons, making CSF, and participating in phagocytosis.
3. Making CSF, participating in endocytosis.
4. Forming the BBB, myelin sheath around neuronal axons, making CSF

B

A stimulus that depolarizes the membrane above and beyond the threshold causing several action potentials to occur is ___________.

1. Suprathreshold
2. Threshold
3. Inhibitory graded potential
4. Sub Threshold

A

The synaptic cleft is the gap between ___________ cells.

1. Pre post synaptic cells
2. Pre and post synaptic cells
3. axon terminal and the post synaptic cells
4. none of the above

B