Red Blood Cell Production & Destruction Quiz

Hematopoiesis

• Hemocytoblasts are nucleated precursors in the bone marrow.

Erythropoiesis

• Erythropoiesis is the process of erythrocyte production.
• The basophilic erythroblast stage of erythroid development has a high nucleus-to-cytoplasm (N:C) ratio, open chromatin, and dark blue cytoplasm.

Erythrocyte Structure and Function

• Mature erythrocytes lack most cellular organelles, but contain a membrane-bound enzyme, carbonic anhydrase, which catalyzes the hydration of CO2.
• Erythrocytes have a flexible membrane skeleton, which allows them to change shape and pass through narrow blood vessels.

Nervous System Organization

• The central nervous system (CNS) consists of the brain and spinal cord.
• The sensory division of the nervous system transmits and processes information from sensory receptors to the CNS.
• The motor/effector division of the nervous system transmits signals from the CNS to effectors (muscles and glands) to produce a response.

Nerve Structure

• A group of nerve fibers traveling together in the CNS is called a tract.
• A bundle of nerve fibers outside the CNS is called a nerve.