Blood Composition and Functions

Flashcards summarizing the composition and functions of blood as discussed in the lecture notes.

What are the two main components of blood?

Cellular (composed of cells) and Acellular (free of cells) parts.

What is the average volume of blood in the human body?

12-13 pints.

What is hemoglobin's role in red blood cells?

Hemoglobin binds to oxygen (O2), allowing red blood cells to carry oxygen.

What is the primary function of leukocytes?

To protect the body against infection.

What are the two types of lymphocytes?

Granular and Agranular lymphocytes.

What is the normal range for red blood cell count in mm³?

4.5-5.4 million/mm³.

What is the role of platelets in the blood?

Platelets assist in the stoppage of bleeding, especially from smaller blood vessels.

What does CBC stand for in blood tests?

Complete Blood Count.

What are the percentages of components in plasma?

90% water and 10% waste, nutrients, and hormones.

What is fibrinogen, and what role does it play in blood clotting?

Fibrinogen is a clotting factor in plasma that converts into fibrin to help form a blood clot.