Each Hemoglobin Molecule Consists of Four ____

question 9

Multiple Choice

Each hemoglobin molecule consists of four ____ .

• A)alpha chain molecules
• B)beta chain molecules
• C)heme molecules with with Fe²⁺
• D)heme molecules with Fe³⁺

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Definitions:

Orbicularis Oculi

A circular muscle around the orbit of the eye that enables blinking and closing of the eyelids.

Zygomaticus Major

A facial muscle that draws the mouth upward and outward, playing a key role in expressing smiling.

Buccinator

A muscle of the cheek that acts to compress the cheek against the teeth and is used in blowing and chewing.

Carpal Tunnel Pressure

The pressure within the carpal tunnel, an anatomical compartment of the hand, potentially leading to carpal tunnel syndrome when increased.