The Cerebral Arterial Circle Forms a Loop Around Which Structures

question 84

Multiple Choice

The cerebral arterial circle forms a loop around which structures?

• A) the internal and external carotid arteries
• B) the cerebellum
• C) the pituitary gland and the optic chiasma
• D) the great vessels at the base of the heart

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Definitions:

Identical Twins

Twins that develop from a single fertilized egg, splitting and forming two embryos, and sharing exactly the same genetic material.

Fraternal Twins

Twins that develop from two different eggs fertilized by two different sperm, making them genetically unique from one another.

Self-Defeating Belief

A negative belief one holds about oneself that undermines their success or happiness.

Negative Explanatory Style

A pattern of explaining events with pessimistic causes, often attributing bad outcomes to stable, global, and internal factors, linked to depression and helplessness.