Anatomy II Lab 3

Blood

Plasma

• Fluid Component of blood within which formed elements, plasma proteins, and various solutes are suspended

• 90% water

Formed Elements of Blood

• The cellular portion of blood

  • Erythrocytes

  • Leukocytes

  • Platelets

Erythrocytes

• Red blood cells

• Hemoglobin- respiratory gas transport

• Anucleate (without a nucleus)

• In almost all mammals, including humans

Platelet

Cell fragments involved in clotting

Serum

Plasma without clotting factors

Leukocyte

• White blood cells

• Inflammatory and immune response

Three types of Granulocytes

1. Neutrophil

2. Eosonophil

3. Basophil

Neutrophil

Defense against bacteria using lyososome/oxidants

Eosinophil

Acts as an antagonist to basophils, resists the effects of histamine in allergic reactions, defense against parasites

Basophil

Exacerbates inflammatory response during allergic reactions by secreting histamines

Two types of Agranulocytes

1. Monocyte

2. Lymphocyte

Monocyte

Transforms into macrophages; phagocytosis

Lymphocyte

Mediates immune responses dealing with antibodies

Phagocytosis

Process by which certain living cells called phagocytes ingest or engulf other cells or particles