The "Heartstrings" Are

question 44

Multiple Choice

The "heartstrings" are

• A) cusps of the atrioventricular valves.
• B) chordae tendineae.
• C) trabeculae carneae.
• D) papillary muscles.

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Definitions:

Shells

Shells are hard, protective outer layers created by animals, particularly mollusks such as snails, oysters, and clams, as a form of protection or body support.

Well Sorted

A condition of sedimentary particles that display a narrow range of sizes due to the action of transport and deposition processes.

Cross-bedding

A geological feature that forms as inclined layers of sediment are deposited across a horizontal surface, indicating ancient water or wind flows.

Siltstone

A sedimentary rock composed of consolidated silt-sized particles, generally mostly quartz.