Sympathetic Nervous System and Ganglia Organization Quiz

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What type of nervous system rapidly sends signals to all organs of the body with just one input?

Autonomic nervous system

Parasympathetic nervous system

Somatic nervous system

Sympathetic nervous system (correct)

What are the two types of membrane potentials discussed in the text?

Active potential and passive potential

Static potential and changing potential

Resting potential and action potential (correct)

On potential and off potential

What is used to measure membrane potentials, according to the text?

Watts (W)

Microvolts (µV)

Millivolts (mV) (correct)

Kilovolts (kV)

What is the significance of the resting potential and action potential in encoding neural signals?

Essential for encoding information Signup and view all the answers

What does a neuron's membrane potential depend on, as stated in the passage?

Signals from other neurons Signup and view all the answers

What is an analogy used in the text to explain the behavior of resting potential and action potential?

Light switch Signup and view all the answers

What is the membrane potential when the charge inside the cell is equal to the charge outside the cell?

0 mV Signup and view all the answers

What is the term for the process where the membrane potential becomes more negative due to positive ions leaving the cell?

Hyperpolarization Signup and view all the answers

What is the approximate membrane potential at the peak of the action potential?

+30 to +40 mV Signup and view all the answers

What is responsible for the slower resetting of the membrane potential back to rest?

Sodium-potassium pump Signup and view all the answers

At what point does the falling membrane potential stop?

When it reaches -80 mV Signup and view all the answers

What is the purpose of the sodium-potassium pump during an action potential?

To maintain the resting potential Signup and view all the answers

What triggers the action potential in sensory neurons in the retina?

Light or darkness Signup and view all the answers

What causes neurons in the inner ear to fire action potentials?

Sound waves Signup and view all the answers

What are the two main types of cells in the brain?

Neurons and glial cells Signup and view all the answers

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

They prevent infection and assist in the formation of neural networks Signup and view all the answers

What is the focus of most of this resource guide?

The central nervous system Signup and view all the answers

How does the action potential wave continue in the forward direction only?

Only the voltage-gated sodium channels in front of the wave can be opened Signup and view all the answers

What happens when subjects put on the prism goggles initially?

Subjects throw the balls too far to the right of the target Signup and view all the answers

How does the cerebellum help with motor control?

The cerebellum acts as a feedback control system Signup and view all the answers

Which of the following is a characteristic of memory?

Memory requires encoding of context Signup and view all the answers

What happens when patients with cerebellar damage put on prism goggles?

They never improve their accuracy Signup and view all the answers

What happens when prism goggles are removed from subjects with normal cerebellar function?

They throw the balls too far to the right of the target Signup and view all the answers

What part of the brain contains more than half of its neurons?

The cerebellum Signup and view all the answers

What is the primary function of the semicircular canals, utricle, and saccule structures?

To maintain balance and spatial awareness Signup and view all the answers

What protects the inner ear structures?

The labyrinth Signup and view all the answers

What is the oval window?

A flexible membrane in the cochlea Signup and view all the answers

What happens to the liquid pressure wave in the cochlea?

It travels down the spiral length of the fluid-filled cavities Signup and view all the answers

How many fluid-filled cavities are inside the cochlea?

3 Signup and view all the answers

What are the names of the three fluid-filled cavities in the cochlea?

Scala vestibuli, scala media, and scala tympani Signup and view all the answers