In What Year Did the First Official Needle Exchange Program

question 51

Multiple Choice

In what year did the first official needle exchange program begin in Canada?

• A) 1969
• B) 1979
• C) 1989
• D) 1999

Recognize physiological responses to stress, including the role of cortisol and the fight-or-flight mechanism.

Distinguish between stressors and stress reactions.

Grasp the perception's role in stress appraisal and its impact on individual stress levels.

Comprehend the impact of stress on health, including unhealthy behaviors and vulnerability to illness.

---

Definitions:

Voltage-Gated

Pertaining to ion channels that open or close in response to changes in membrane potential, playing a critical role in the conduction of electrical signals in neurons.

Neuronal Membrane

The lipid bilayer that surrounds a neuron, maintaining the cell's structure and contributing to its function by regulating the movement of ions and molecules.

Activation Gate

In the context of cell membrane channels, this refers to a mechanism that opens or closes ion channels in the cell membrane in response to physiological stimuli.

Transport Pump

Proteins in cell membranes that use energy to move substances across the membrane, often against a concentration gradient.