Functions and Characteristics of Blood

This set of flashcards covers the key functions, characteristics, types, and components of blood as per the lecture notes.

What is the pH range that blood must maintain?

Blood pH must remain between 7.35 and 7.45.

What color is oxygen-rich blood?

Oxygen-rich blood is scarlet red.

What is the lifespan of a red blood cell (RBC)?

RBCs wear out in 100 to 120 days.

What is the term for the liquid part of blood?

Plasma.

What is hemostasis?

The stoppage of bleeding.

What are the three types of proteins found in plasma?

Albumin, clotting proteins, and globulins (antibodies).

What percentage of blood is plasma?

Plasma makes up 55% of blood.

What is the normal range for white blood cell (WBC) count?

Normal WBC count is 4,000-11,000 per mm3.

What is the role of hemoglobin?

Hemoglobin carries oxygen and contains iron.

What type of tissue characterizes blood?

Blood is classified as a connective tissue.

What are the two categories of white blood cells (WBCs)?

Granulocytes and agranulocytes.

What is a thrombocyte?

A thrombocyte is a platelet, which is important for blood clotting.

What does leukocytosis indicate?

Leukocytosis indicates an elevated WBC count above 11,000.

What type of blood does Group AB receive?

Group AB can receive all blood types.

What is diapedesis?

Diapedesis is the passage of blood cells through intact vessel walls into tissues.

What is the function of the neutrophil?

Neutrophils engulf and destroy foreign bacterial cells and clean up debris.

What is hematopoiesis?

Hematopoiesis is the formation of blood cells.

What are the key steps in the coagulation process?

Coagulation involves the release of thromboplastin, activation of prothrombin to thrombin, and conversion of fibrinogen to fibrin.

Describe the composition of formed elements in blood.

Formed elements include erythrocytes (RBCs), leukocytes (WBCs), and thrombocytes (platelets).