Definition

1. Noun:
   • The system of veins: The venous blood system refers to the network of blood vessels that carry blood back to the heart from the body's tissues. This blood is typically deoxygenated (except in the pulmonary vein) and carries waste products.
   • A zoological term: In zoology, it specifically denotes the arrangement and structure of these vessels within an animal's body.

Usage Examples

• Noun:
  • The surgeon carefully studied the patient's venous blood system before the procedure.
  • In vertebrates, the venous blood system works in conjunction with the arterial system to circulate blood.

Advanced Usage

• Comparative anatomy: The term is used to compare the structure of the venous system across different animal species.
  • The study focused on the evolution of the venous blood system in mammals.

Variants and Related Words

• Venous (adj): Pertaining to veins.
  • Venous insufficiency is a common medical condition.
• Venule (n): A very small vein.
• Venation (n): The arrangement of veins, especially in a leaf or an insect's wing. (Note: This is a related but distinct biological term).

Synonyms

• Venous system
• System of veins

Related Phrases

• Venous return: The process of blood flowing back to the heart via the veins.
  • Muscle contractions aid in venous return.
• Venous pressure: The blood pressure within the venous system.
  • Elevated venous pressure can be a sign of heart failure.

Noun

1. (zoology) the system of venous blood vessels in an animal