Question

blood tissue

1. identify and describe each part of blood tissue (note blood is a connective tissue, with two basic types of cells suspended in a fluid matrix. it clearly \connects\ to every part of our body)

a. plasma
b. rbcs (erythrocytes)
c. wbcs (leukocytes)
d. platelets

Explanation:

a. Plasma: The liquid part of blood, about 55% of blood volume. It contains water, proteins, glucose, hormones, and waste - products. Transports nutrients, hormones, and waste.
b. RBCs (erythrocytes): Biconcave - shaped cells without a nucleus. Contain hemoglobin, which binds to oxygen and transports it from the lungs to the body's tissues.
c. WBCs (leukocytes): Part of the immune system. Different types (e.g., neutrophils, lymphocytes) help defend the body against infections, foreign substances, and diseases.
d. Platelets: Small cell - fragments. Essential for blood clotting. When a blood vessel is damaged, platelets aggregate at the site to form a plug and prevent excessive bleeding.

Answer:

a. Plasma: Liquid part of blood, 55% of volume, transports substances.
b. RBCs (erythrocytes): Biconcave, no nucleus, transport oxygen.
c. WBCs (leukocytes): Immune - system cells, defend against infections.
d. Platelets: Cell - fragments, crucial for blood clotting.