Blood is a fluid form of connective tissue consisting of “blood cells” and an extracellular component called “plasma”.  Blood circulating through the components of the cardiovascular system has many functions.

Learning outcomes

After viewing the histological images and interactive text in this module you should

• be able to distinguish the appearance and function of blood cells:

Erythrocyte.
Lymphocyte.
Monocyte.
Neurophil.
Eosinophil.
Basophil.

• distinguish small from large lymphocytes.
• observe platelets.
• carry out a differential white blood count.
• appreciate the difference in appearance of blood cells in smear and sectioned histological preparations.