How Did the Sinoatrial (SA) Node Most Likely Get Its

question 22

Multiple Choice

How did the sinoatrial (SA) node most likely get its name?

• A) It is on the side of the atrium.
• B) It lies at the opening of the coronary sinus.
• C) It is damaged by sinus infections (head colds).
• D) It develops from the sinus venosus and lies in an atrium.

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Definitions:

Widowbirds

A group of bird species known for their mating behaviors, including the male's long tail feathers used to attract females.

Long-Tailed Sons

A hypothetical or specific trait in certain species where male offspring have an extended tail feature, potentially influencing mating success or survivability.

Mate Choice

The process by which an individual selects a partner based on certain traits or behaviors that are indicative of high genetic quality or compatibility.

Female Fruit Flies

Refers to the female specimens of fruit flies, often studied for genetics, behavior, and evolutionary biology.