Powerpoint lecture

Lecture 3 Blood

Blood • The only fluid tissue in the body

• Composed of both cellular and liquid components • Considered a specialized liquid, connective tissue – contains fibrous proteins for clotting

Composition of Blood • Plasma – non-living fluid matrix

• Blood cells – Erythrocytes (red blood cells) – Leukocytes (white blood cells) – Platelets (cell fragments)

Figure 17.1 The major components of whole blood.

Slide 4

Formed elements

1 Withdraw blood and place in tube.

© 2013 Pearson Education, Inc.

2 Centrifuge the blood sample.

Plasma • 55% of whole blood • Least dense component Buffy coat • Leukocytes and platelets •