Nervous System Flashcard 1

Front

What is the refractory period in neurons?

Back

The refractory period is the time following an action potential during which a neuron is unable to fire another action potential. It ensures that signals only travel in one direction along the neuron.

Front

Which part of the brain is supplied by the Anterior Cerebral artery?

Back

The Anterior Cerebral artery primarily supplies blood to the frontal lobe of the brain.

Front

What are the symptoms of oculomotor nerve dysfunction?

Back

Symptoms include double vision (diplopia), difficulty moving the eye inward, ptosis (drooping eyelid), and decreased pupillary response to light.

Front

What is the function of Broca's area in the brain?

Back

Broca's area is responsible for speech production and language processing.

Front

What is the primary function of the parasympathetic nervous system?

Back

The primary function of the parasympathetic nervous system is to calm the body and regulate bodily functions, promoting a 'rest and digest' state.

Front

Define depolarization in the context of neuron activity.

Back

Depolarization is the process by which the membrane potential of a neuron becomes less negative (more positive), leading to the generation of an action potential.

Front

What is the role of the oculomotor nerve?

Back

The oculomotor nerve controls most of the eye's movements, including constriction of the pupil and maintaining an open eyelid.

Front

What is the significance of the frontal lobe in brain function?

Back

The frontal lobe is involved in higher cognitive functions such as reasoning, planning, problem-solving, and controlling behavior.

Front

What is the difference between the sympathetic and parasympathetic nervous systems?

Back

The sympathetic nervous system prepares the body for 'fight or flight' responses, while the parasympathetic nervous system promotes 'rest and digest' activities.

Front

What is the function of Wernicke's area?

Back

Wernicke's area is responsible for language comprehension and the processing of spoken and written language.