When a Neurotransmitter Molecule Binds Briefly with a Receptor Site,changes

question 339

Multiple Choice

When a neurotransmitter molecule binds briefly with a receptor site,changes occur in the receiving neuron's membrane.If there is a voltage shift in a negative direction then the effect is:

• A)inhibitory,and so the probability that the receiving neuron will fire decreases.
• B)excitatory,and so the probability that the receiving neuron will fire increases.
• C)likely to lead to the development of multiple sclerosis.
• D)likely to lead to the development of Parkinson's disease.

---

Definitions:

Pleurisy

An inflammation of the pleura, the membrane surrounding the lungs, causing sharp chest pain with breathing.

Asbestosis

A chronic lung disease caused by inhaling asbestos fibers, characterized by lung tissue scarring and shortness of breath.

Chronic Bronchitis

A long-term inflammation of the bronchi in the lungs, characterized by coughing and mucus production.

Bronchi

The main passageways into the lungs, which branch off from the trachea and allow air to travel in and out of the lungs.