Nervous Tissue

Labelling

Correctly break down the divisions of the Nervous System

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Parasympathetic

Sympathetic

Autonomic

Central NS

Peripheral NS

Somatic

Efferent

Afferent

Multiple Select

Which of the following are components of the autonomic nervous system (ANS)?

• Somatic nervous system

• Sympathetic division

• Parasympathetic division

• Sensory (afferent) division

Open Ended

Explain the relationship between the Central Nervous System (CNS) and the Peripheral Nervous System (PNS).

Multiple Choice

Which part of the neuron is responsible for receiving signals from other neurons?

• Axon

• Dendrites

• Cell body

• Axon terminals

Labelling

Label the Neuron Cell

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Axon Terminals

Axon Hillock

Axon

Cell Body

Dendrite

Multiple Choice

Which neuroglial cell type is responsible for forming the blood-brain barrier (BBB) in the CNS?

• Astrocytes

• Microglial cells

• Oligodendrocytes

• Schwann cells

Multiple Choice

The myelin sheaths in the CNS are formed by ___.

• oligodendrocytes
• astrocytes

• microglial

• ependymal

Multiple Choice

Which type of matter in the brain contains myelinated fibers?

• Gray matter

• White matter

• Both gray and white matter

• Neither

Open Ended

Compare and contrast the roles of Schwann cells in the PNS and oligodendrocytes in the CNS in the formation of myelin sheaths.

Multiple Choice

What is the function of the nodes of Ranvier in a neuron?

• They generate electrical impulses.

• They allow for faster transmission of nerve signals by enabling saltatory conduction.

• They store neurotransmitters.

• They provide structural support to the axon.

Open Ended

Compare and contrast chemically gated ion channels and voltage-gated ion channels in terms of their mechanisms of opening and their roles in neuronal signaling.

Open Ended

Explain how the resting membrane potential is maintained in neurons. (Where are the ions?)

Multiple Choice

Graded potentials are typically associated with which part of the neuron?

• Axon

• Dendrite

• Myelin sheath

• Node of Ranvier

Open Ended

Explain why action potentials do not decay over distance, whereas graded potentials do.

Multiple Choice

Which type of neuron would conduct the fastest impulse?

• small, myelinated

• large, myelinated

• small, non-myelinated

• large, non-myelinated

Multiple Choice

What ion triggers the release of neurotransmitters from the presynaptic neuron?

• Sodium

• Potassium

• Calcium

• Oxygen

Match

Match the following physiological effects with the correct neurotransmitter.

• fight or flight response

• reward/motivation responses, skeletal muscle movement

• circadian rhythm, mood

• vasodilator

norepinephrine/epinephrine

dopamine

serotonin

histamine

• norepinephrine/epinephrine

• dopamine

• serotonin

• histamine

Open Ended

What are ways that neural stimuli can be stopped?

Multiple Choice

Action potentials have different strengths- stronger action potentials create stronger stimuli.

• True

• False