Some Studies Theorize That Yawning Is a Reflex Triggered by Increased

question 34

Multiple Choice

Some studies theorize that yawning is a reflex triggered by increased blood pH as carbonic acid is produced to expel CO₂ by exhaling. Which structures would be stimulated to induce yawning if this theory is true?

• A)Arterial baroreceptors
• B)Baroreceptors in the aortic arch
• C)Free nerve endings in the blood vessels
• D)Aortic bodies and carotid bodies

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Definitions:

IQ Tests

Standardized tests designed to measure human intelligence and cognitive ability in relation to an age group.

Spearman's Concept

Refers to Charles Spearman's theory of general intelligence ('g'), suggesting that individual cognitive abilities are expressions of a single, underlying intelligence factor.

Crystallized Intelligence

The ability to use learned knowledge and experience effectively.

Standard IQ

represents a measure of an individual's intelligence quotient, calculated based on standardized tests, adjusted to have a mean of 100 and a standard deviation.