Nervous System Review

Multiple Choice

What symptoms did Izzy experience that led her to call the doctor?

• Heavy legs and arms

• Blurred vision

• Inability to speak

• All of the above

Open Ended

What do you notice about this image?

Multiple Choice

What are the possible diagnoses proposed by neurologists for Izzy?

• Stroke

• Brain tumor

• Epilepsy

• Infection

Multiple Choice

What causes a stroke?

• lack of blood supply and nitrogen

• lack of blood supply and oxygen

• lack of sleep

• physical exertion

Multiple Choice

What is the purpose of a lumbar puncture?

• To check for inflammation

• To administer medication

• To perform surgery

• To draw blood

Multiple Choice

What do the white spaces in the brain scan represent?

• Healthy brain tissue

• Lesions or scar tissue

• Fluid accumulation

• Normal brain structure

Multiple Choice

Which part of the brain controls your balance and coordination?

• brain stem

• occipital lobe

• cerebellum

• frontal lobe

Open Ended

How were these systems working (or not working) in Izzy’s case?

Multiple Choice

What are the 2 major divisions of the peripheral nervous system (PNS)?

• Sensory & Motor
• Peripheral & Central
• Somatic & Autonomic
• Brain & Spinal Cord

Multiple Choice

What are the main differences between the Somatic Nervous System and the Autonomic Nervous System?

• Somatic is voluntary, Autonomic is involuntary

• Somatic controls smooth muscles, Autonomic controls skeletal muscles

• Somatic is part of the central nervous system, Autonomic is not

• Somatic is faster than Autonomic

Multiple Choice

What are the primary functions of the parasympathetic and sympathetic branches of the autonomic nervous system?

• Parasympathetic: fight or flight, Sympathetic: rest and digest

• Parasympathetic: relax, Sympathetic: energize

• Parasympathetic: rest and digest, Sympathetic: fight or flight

• Parasympathetic: stimulate digestion, Sympathetic: inhibit digestion

Multiple Choice

What are the two main responses of the autonomic nervous system depicted in the image?

• Sympathetic Response

• Parasympathetic Response

• Fight or Flight

• Rest & Digest

Multiple Choice

What are some symptoms associated with MS?

• Sensory loss

• Muscle cramping

• Fatigue

• Depression

Multiple Choice

The most vulnerable part of the neuron and it's signal transmission is the

• Cell body

• Dendrites

• Axon

• Synaptic gap

Multiple Choice

This insulating material 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 Select

What are the main types of neuroglial cells shown in the diagram?

• Astrocyte

• Oligodendrocyte

• Microglial cell

• Neuron

Multiple Choice

What is the primary function of microglial cells?

• Transmit signals

• Digest debris

• Provide structural support

• Insulate neurons

Multiple Choice

What is the role of oligodendrocytes in the central nervous system?

• To produce neurotransmitters

• To make myelin sheath

• To support blood flow

• To transmit electrical signals

Multiple Choice

What is the primary function of astrocytes as shown in the image?

• Connect neurons to muscles

• Connect blood vessels to neurons

• Protect neurons from damage

• Transmit electrical signals

Multiple Choice

What is the function of ependymal cells in the nervous system?

• To form membranes around tissue

• To transmit nerve impulses

• To support neurons

• To produce myelin

Multiple Choice

What is the function of Schwann cells in the peripheral nervous system?

• To form the myelin sheath

• To transmit nerve impulses

• To protect neurons

• To produce neurotransmitters

Multiple Choice

What are the gaps in the myelin sheath called?

• Nodes of Ranvier

• Schwann cells

• Oligodendrocytes

• Axons

Multiple Choice

What is wrong with Izzy’s neurons?

• They are healthy

• They are demyelinated

• They are inflamed

• They are overactive

Multiple Choice

An internal or external signal 

• Stimulus
• Response

Multiple Choice

What is the primary function of myelin sheath in neuronal transmission?

• To decrease the speed of action potentials

• To increase the permeability of the neuron membrane to ions

• To insulate the axon and increase the speed of action potentials

• To facilitate the diffusion of neurotransmitters across the synaptic cleft

Multiple Choice

The speed of nerve transmission is greatest when there is 

• a myelin sheath
• thick axon
• all options are correct

Multiple Choice

What are the main components involved in the transmission of nerve impulses as shown in the diagram?

• Dendrites

• Axon

• Myelin Sheath

• Nucleus

Multiple Choice

Which part of the neuron receives signals from other neurons?

• Axon

• Cell Body

• Dendrites

• Synapse

Multiple Choice

Neurotransmitters are released from the

• Dendrites

• Post-synaptic neuron

• Presynaptic neuron

• Schwann Cells

Poll

How confident do you feel about this topic now?

• Very confident
• Somewhat confident
• Not confident