Reflex Action and Resting Potential Quiz

What is a reflex action?

• A reflex action is a slow and deliberate movement in response to a stimulus.

• A reflex action is a voluntary movement in response to a stimulus.

• A reflex action is a learned behavior in response to a stimulus.

• A reflex action is an involuntary and nearly instantaneous movement in response to a stimulus.

Give an example of a reflex action.

• Knee-jerk reflex

• Ankle-jerk reflex

• Elbow-jerk reflex

• Shoulder-jerk reflex

Explain the concept of conditioned reflex.

• Conditioned reflex is an innate response to a specific stimulus.

• Conditioned reflex is a physical reflex that cannot be modified.

• Conditioned reflex is a voluntary response to a specific stimulus.

• Conditioned reflex is a learned response to a specific stimulus that was previously neutral or meaningless.

How is resting potential defined in neuroscience?

• The resting potential is the electrical charge across the cell membrane when the neuron is not being stimulated.

• The resting potential is the speed at which neurons fire signals.

• The resting potential is the size of the neuron's cell body.

• The resting potential is the amount of neurotransmitters released during stimulation.

What is the significance of resting potential in nerve cells?

• Resting potential in nerve cells is significant for maintaining the cell's readiness to send signals and is essential for nerve cell function.

• Resting potential in nerve cells is only important for muscle function, not nerve function.

• Resting potential in nerve cells has no impact on the cell's ability to send signals.

• Resting potential in nerve cells is primarily involved in energy storage, not signal transmission.

Describe the process of action potential in neurons.

• Neurons undergo expansion, contraction, and fragmentation during action potential.

• The process of action potential in neurons involves depolarization, repolarization, and hyperpolarization phases.

• Action potential in neurons is a result of chemical reactions, heat generation, and sound propagation.

• The process of action potential in neurons involves magnetization, polarization, and neutralization phases.

What factors can affect the speed of action potential propagation?

• Presence of mitochondria, cell membrane thickness, and DNA structure.

• Axon diameter, myelination, temperature, and presence of ion channels.

• Axon length, cell body size, and neurotransmitter type.

• Blood pressure, heart rate, and lung capacity.

Differentiate between reflex action and conditioned reflex.

• Reflex action is a result of conditioning, while conditioned reflex is innate.

• Reflex action is voluntary and learned, while conditioned reflex is automatic.

• Reflex action is conscious, while conditioned reflex is unconscious.

• Reflex action is involuntary and automatic, while conditioned reflex is learned through association.

What role does the sodium-potassium pump play in maintaining resting potential?

• The sodium-potassium pump increases the resting potential by inhibiting ion movement

• The sodium-potassium pump decreases the resting potential by releasing ions into the cell

• The sodium-potassium pump helps establish the resting potential by transporting ions across the cell membrane.

• The sodium-potassium pump has no impact on the resting potential

How do neurons communicate with each other through action potentials?

• Neurons communicate through action potentials by sending chemical signals along dendrites.

• Neurons communicate through action potentials by releasing hormones into the bloodstream.

• Neurons communicate through action potentials by transmitting electrical signals along axons and releasing neurotransmitters into synapses.

• Neurons communicate through action potentials by using sound waves to transmit information.