Gap Junctions

question 69

Multiple Choice

Gap junctions:

• A)can be either open or closed.
• B)are also called electrical synapses.
• C)allow glial cells and neurons to exchange substances.
• D)All of the answers are correct.

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Definitions:

Excitatory

Pertaining to or causing excitation, often referring to neurotransmitters or synaptic inputs that increase the likelihood of a neuron firing an action potential.

Parkinson's Disease

A neurodegenerative disorder that affects movement, causing symptoms such as tremors, stiffness, and slowness of movement.

Dopamine

A neurotransmitter involved in many functions, including mood, sleep, learning, and the reward system, influencing both movement and emotional responses.

Acetylcholine

A neurotransmitter in both the central and peripheral nervous systems that plays a crucial role in muscle contraction and the modulation of alertness, memory, and learning.