Why Isn't an Action Potential Transmitted from a Postsynaptic Membrane

question 10

Multiple Choice

Why isn't an action potential transmitted from a postsynaptic membrane to a presynaptic terminal?

• A) Presynaptic terminals have no acetylcholine receptors.
• B) Presynaptic neurons do not have a resting membrane potential.
• C) Acetylcholine can only diffuse in one direction across the synaptic cleft.
• D) Synaptic vesicles in the postsynaptic membrane are inactive.
• E) Acetylcholine is destroyed too quickly.

Identify key figures and their contributions to the discourse on ethical responsibilities and global health.

Grasp the diversity of approaches to bioethical issues and their underpinning philosophies.

Understand the ethical debates surrounding fairness and disparity in global health.

Appreciate the cultural variations in medical consent and decision-making processes.

---

Definitions:

Salivary Glands

Accessory digestive glands found in vertebrates and some invertebrates; in humans there are three pairs.

Enzymatic Digestion

The breakdown of food by enzymes into molecules small enough for the body to absorb.

Saliva

A watery secretion in the mouths of animals, produced by the salivary glands, which aids in digestion and oral hygiene.

Propulsive Movements

Bodily movements that drive or push something forward, typically referring to the contractions in the digestive tract moving food along.