An Antagonist Drug Acts By

question 8

Multiple Choice

An antagonist drug acts by:

• A)Preventing the release of a neurotransmitter.
• B)Binding to a receptor to facilitate the effect of a neurotransmitter.
• C)Elevating neurotransmitter levels in the synaptic cleft.
• D)Increasing the number of active receptors on a cell membrane.

---

Definitions:

Slit Lamp

An instrument composed of a magnifying lens combined with a light source; used to provide a minute examination of the eye’s anatomy.

Refraction Examination

An eye examination in which the patient looks through a succession of different lenses to find out which ones create the clearest image.

Localization of Function

The concept that specific parts of the brain are responsible for specific psychological processes or functions.

Franz Gall

Franz Gall was a neuroanatomist and physiologist known for his development of phrenology, the (now discredited) theory that mental abilities and character traits are determined by the shape of the skull.