What Is the Purpose of Motor Nerve Varicosities as They

question 49

Multiple Choice

What is the purpose of motor nerve varicosities as they relate to smooth muscle?

• A) They link the thin filaments to the inside of the sarcolemma in smooth muscle.
• B) They reabsorb the decomposition products of acetylcholine after acetylcholinesterase breaks it down.
• C) They enable each cardiomyocyte to directly stimulate its neighbors.
• D) They release neurotransmitter molecules onto smooth muscle cells.
• E) They prevent single-unit smooth muscle cells from pulling apart.

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Definitions:

Aquatic Ecosystems

Water-based environments—including oceans, lakes, rivers, and wetlands—that support a diverse range of life through complex interrelationships.

Mosses

Small, non-vascular plants that typically form dense green clumps or mats, often in damp or shady locations.

Lichens

Symbiotic associations between a fungus and a photosynthetic partner, usually an algae or cyanobacteria, which live together as a single, unique organism.

Sedges

A family of grass-like plants, often found in wet grounds, distinguished by their edges (edges, sedges) and triangular stems.