Divisions Of the Nervous System

Divisions Of the Nervous System

Multiple Choice

Motor nerves are called

• afferent
• peripheral
• sensory
• efferent

Multiple Choice

The brain and spinal cord together make up all of which division of the nervous system?

• Peripheral nervous system

• Central nervous system

• Sympathetic nervous system

• Parasympathetic nervous system

Multiple Choice

Afferent nerves are called

• efferent
• sensory
• motor
• peripheral

Multiple Select

The divisions of the motor division include :

• Somatic Nervous System

• Peripheral Nervous System

• Sympathetic Nervous System

• Parasympathetic Nervous system

• Autonomic Nervous System

Multiple Choice

The "fight or flight" response during threatening situations in the role of the:

• sympathetic nervous system
• parasympathetic system
• somatic nervous system
• cerebellum

Multiple Choice

Which of the following is NOT a function of the autonomic nervous system?

• regulating leg muscle contractions during walking

• controlling muscle movements in the stomach that push food through

• regulating heart rate and respiration rate

• controlling contraction of the arrector pili muscles (goosebumps) in the skin

Multiple Choice

Which types of neurons make up the Peripheral Nervous System?

• sensory and interneurons

• motor and sensory neurons

• interneurons and motor neurons

• only interneurons

Multiple Choice

Which of the following is TRUE?

• Parasympathetic nervous system is known as the “fight or flight” response.

• Norepinephrine and adrenaline are neurotransmitters used by the parasympathetic nervous system to relax the body.

• Digestion and immune response increase when the parasympathetic nervous system is active.

• Sympathetic and parasympathetic branches of the nervous system are part of the somatic nervous system.

Multiple Choice

The axon has a continuous sheath, it is known as neurilemma, which is tough membrane of protein & made-up of _______ type of cell.

• Schwann cell

• Glial cell

• Both

• None

Multiple Choice

__________ refers to short unmyelinated sections that speed up propagation of action potentials along the axon via saltatory conduction.

• Axon hillock

• Myelin sheath

• Nodes of Ranvier

• Synaptic cleft

Multiple Choice

This insulating material, formed by Schwann cells, which forms a layer, around the axon of a neuron. It enables electrical signals to travel down the axon at higher speeds.

• neuron

• myelin sheath

• dendrite

• neurotransmitter

Multiple Choice

Which of the following is the correct order of the direction of a message?

• Dendrite-Cell Body-Axon-Synapse
• Synapse-Cell Body-Axon-Dendrite
• Dendrite-Synapse-Cell Body-Axon
• Axon-Cell Body-Dendrite-Synapse

Multiple Choice

Label the Neuron-What does the letter "C" represent?

• Dendrite
• Axon
• Axon Terminal
• Cell Body

Multiple Choice

The part of the neuron that takes information away from the cell body is called a(n) _____________.

• dendrite

• axon

• cell body

• Schwann cell

Multiple Choice

part of a neuron that receives information from other neurons

• axon

• dendrites

• myelin sheath

• synapse

Multiple Choice

Myelinated neurons are _____________ unmyelinated neurons are ______________?

• white mater, gray mater

• pink mater, gray mater

• gray mater, white mater

• blue mater, pink mater

Multiple Choice

A bundle of nerve cell bodies in the PNS are called....

• ganglia

• astrocyte

• tract

• neuroglia

Multiple Choice

Which of the following gate opens during repolarization

• Na⁺ gates and Na⁺/K⁺ pump

• K⁺ gates and Na⁺/K⁺ pump

• Na ⁺ and K⁺ gates

• Na⁺ gates only

Multiple Choice

Action potential refers to

• a very positive charge inside and outside of the neuron

• a very negative charge inside and outside of the neuron

• a change of charge between the inside and outside of the neuron

• action outside the membrane that cause the neuron's membrane to close all its pores

Multiple Choice

Depolarization occurs when

• sodium channels open

• potassium channels open

• sodium channels close

• potassium channels close

Multiple Choice

Which ions are involved in the electrical nerve impulse?

• Iodine and Sodium
• Potassium and Sodium
• Iron and Sodium
• Calcium and Iodine

Multiple Choice

When a neuron is resting, the inside of the axon has a ____________ charge.

• positive
• negative

Multiple Choice

When a neuron is depolarized, what are the first channels to open?

• Sodium
• Potassium
• Calcium
• ACTH

Multiple Choice

What is MS?

• Disease of the CNS that attacks dendrites

• Disease of the PNS that attacks dendrites

• Disease of the CNS that attacks myelin

• Disease of the PNS that attacks myelin

Multiple Choice

Synapses that are ____________ cause a neuron to fire whereas ____________ synapses reduce the likelihood that a neuron will fire.

• excitatory; inhibitory
• synaptic; terminal
• postsynaptic; presynaptic
• dendritic; axon

Multiple Choice

Which neurotransmitter is released in response to injury or trauma?

• Acetylcholine
• Endorphins
• Serotonin
• GABA

Multiple Choice

Serotonin is a neurotransmitter that helps regulate:

• learning and memory
• pain and pleasure
• muscle movements
• sleep, moods/emotions

Multiple Choice

Too much of this neurotransmitter can cause severe muscle spasms and even death

• Serotonin
• Endorphins
• Acetylcholine
• GABA

Multiple Choice

Which neurotransmitter inhibits brain activity?

• Acetylcholine
• GABA
• Endorphins
• Dopamine

Multiple Choice

Where does the neurotransmitter substance store

• Axon

• synapse

• synaptic vesicle

• dendrite

Multiple Choice

What is the function of the efferent pathway?

• To conduct impulses from the integrating centre to the effectors
• To conduct impulses from the effectors to the integrating centre
• To conduct impulses from the receptors to the integrating centre
• To conduct impulses from the integrating centre to the receptors

Multiple Choice

What is the final component of a reflex arc?

• Effector
• Receptor
• Integrating Centre
• Afferent Pathway

Multiple Choice

In which direction does the afferent pathway conduct impulses?

• From the brain to the spinal cord
• From receptors to the brain/spinal cord
• From the brain/spinal cord to the receptors
• From the brain/spinal cord to the effectors

Multiple Choice

Which of the following is NOT an example of a reflex?

• Catching a ball
• Blinking when an object flies at your face
• Jumping at a loud nosie
• Coughing when something irritates your throat