Match the Gestational Age with the Corresponding Prenatal Development

question 20

Multiple Choice

Match the gestational age with the corresponding prenatal development.

• A) 1 month / mammary glands develop
• B) 2 months / movement of fetus can be felt by mother
• C) 3 months / formation of the gonads, ducts, and genitalia
• D) 4 months / eye and ear formation
• E) 5 months / migration of lymphocytes to lymphoid organs

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Definitions:

Stirrup

A small U-shaped bone in the middle ear that transmits sound vibrations from the anvil to the cochlea. Alternatively, it refers to a device attached to the saddle in horse riding, supporting the rider's foot.

Frequency Theory

A theory in hearing that suggests the perception of pitch is related to the rate at which the entire basilar membrane vibrates, indicating that the frequency of the sound wave is mimicked by the firing rate of the auditory nerve.

Basilar Membrane

A structure in the cochlea of the inner ear that plays a critical role in sound perception, vibrating in response to sound and contributing to the separation of different frequencies for auditory processing.

Auditory Nerve

The cranial nerve that transmits sound information from the inner ear to the brain.