Neurophysiology Quiz: Graded Potentials & Synaptic Transmission

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What is the function of the autonomic nervous system?

To control involuntary actions such as heart rate and digestion (correct)

To transmit signals from the brain to skeletal muscles

To integrate sensory information and respond to changes in the environment

To transmit signals from sensory receptors to the central nervous system

Which type of neuron is responsible for transmitting signals from the central nervous system to skeletal muscles?

Motor neuron (correct)

Sensory neuron

Interneuron

Cerebellar neuron

What is the role of spinal nerves in the somatic nervous system?

To control involuntary actions such as heart rate and digestion

To integrate sensory information from the periphery

To transmit signals from the brain to the spinal cord

To transmit signals from the spinal cord to skeletal muscles (correct)

What is a reflex arc?

A pathway of neurons that allows for rapid responses to stimuli Signup and view all the answers

What is the role of neurotransmitters in the nervous system?

To transmit signals from one neuron to another Signup and view all the answers

What is the function of the somatic nervous system?

To transmit signals from the central nervous system to skeletal muscles Signup and view all the answers

What is the correct sequence of the components involved in a reflex arc?

Receptor, integration center, motor neuron, effector Signup and view all the answers

What is the main difference between the somatic and autonomic nervous systems?

The somatic nervous system is responsible for voluntary actions, while the autonomic nervous system is responsible for involuntary actions. Signup and view all the answers

Which type of fiber is associated with the Parasympathetic division of the autonomic nervous system?

Cholinergic fibers Signup and view all the answers

What is the function of the spinal cord in the autonomic nervous system?

To transmit signals from the brain to the periphery Signup and view all the answers

Which neurotransmitter is associated with Adrenergic fibers?

Norepinephrine Signup and view all the answers

What is the term for the baseline level of activity in the autonomic nervous system?

Tone Signup and view all the answers

What is the typical effect of an IPSP on the post-synaptic neuron?

Hyperpolarization, moving the neuron further from threshold Signup and view all the answers

What is the main function of the autonomic nervous system?

Regulation of involuntary actions, such as heart rate and digestion Signup and view all the answers

What is the role of neurotransmitters in chemical synaptic transmission?

To transmit signals across the synapse Signup and view all the answers

What are biogenic amines categorized as?

Neurotransmitters Signup and view all the answers

What is the typical effect of an EPSP on the post-synaptic neuron?

Depolarization, bringing the neuron closer to threshold Signup and view all the answers

What is the function of the meninges of the brain?

Protection of the brain from mechanical injury Signup and view all the answers