Definition

1. Noun:
   • The bright red form of hemoglobin combined with oxygen: Oxyhemoglobin is the compound formed when hemoglobin in red blood cells binds with oxygen molecules, typically in the lungs. It is responsible for the bright red color of oxygenated blood and is essential for transporting oxygen from the lungs to tissues throughout the body.

Usage Examples

• Noun:
  • The primary function of oxyhemoglobin is to deliver oxygen to body tissues.
  • In the lungs, hemoglobin binds with oxygen to become oxyhemoglobin.
  • The bright red color of arterial blood is due to the presence of oxyhemoglobin.

Advanced Usage

• "Formation of oxyhemoglobin": The process by which hemoglobin binds with oxygen.
  • The formation of oxyhemoglobin is a reversible reaction crucial for respiration.
• "Oxyhemoglobin dissociation": The process where oxyhemoglobin releases its oxygen to tissues.
  • Factors like temperature and pH affect the oxyhemoglobin dissociation curve.

Variants and Related Words

• Deoxyhemoglobin (n): The form of hemoglobin that has released its oxygen; it has a darker, bluish-red color.
  • Venous blood appears darker because it contains more deoxyhemoglobin.
• Carboxyhemoglobin (n): A stable compound formed when hemoglobin binds with carbon monoxide instead of oxygen.
  • Smoking increases levels of carboxyhemoglobin in the blood.

Synonyms

• Oxygenated hemoglobin: A direct synonym describing hemoglobin bound to oxygen.

Related Terms and Concepts

• Hemoglobin (n): The iron-containing protein in red blood cells that carries oxygen.
• Oxygen transport (n): The biological process of delivering oxygen from the lungs to cells, in which oxyhemoglobin is the key carrier molecule.

Noun

1. the bright red hemoglobin that is a combination of hemoglobin and oxygen from the lungs
   • oxyhemoglobin transports oxygen to the cells of the body