Blood Erythrocytes RBC Blood Smear with Erythrocytes Red

Blood Erythrocytes (RBC)

Blood Smear with Erythrocytes – Red Blood Cells (RBCs)

TEM of Red Blood Cells (in cross section)

Colorized SEM of Red Blood Cells (red), platelets (green) and White Blood Cells (purple)

Blood Smear from normal and hypochromic microcytic anemia patients

Blood Smear from normal and hyperchromic macrocytic anemia patients Normal Macrocytic Hyperchromic Anemia

Sickle Cell Anemia (arrow = sickle cell)

Colorized SEM of Sickle Cell RBCs (green)

Erythropoiesis – Red Blood Cell Development Basophilic Erythroblasts Polychromatophilic Erythroblasts Normoblast Reticulocyte

Bone Marrow Smear with developing red blood cells Black arrow = basophilic erythroblast Green arrow = polychromatophilic erythroblasts

Bone Marrow Smear with Megakaryocyte forming platelets (P)

Blood Smear with platelets (a) – inset high mag with hyalomere and granulomere

TEM of a Platelet

Colorized SEM of Red Blood Cells (red), platelets (green) and White Blood Cells (yellow)

White Blood Cells Neutrophils, Eosinophils, Basophils, Lymphocytes, and Monocytes

Blood Smear with a Neutrophil (Polymorphonuclear Leukocyte)

Blood Smear with an Eosinophil (bilobed nucleus + red granules)

Blood Smear with a Basophil (irregular nucleus + dark purple granules)

Diagram of Granulopoiesis White Blood Cell Development

Bone Marrow Smears showing Neutrophil development Neutrophilic Early Neutrophilic Late Neutrophilic Myelocyte Metamyelocyte or Stab Cell

Bone Marrow Smear – yellow arrow = eosinophilic myelocyte 1= Neutrophilic Myelocytes 2&3= Neutrophilic Metamyelocytes

Blood Smear with two Monocytes

Blood Smear with a Lymphocyte

Blood Vessels Arteries and Arterioles

Muscular Artery – TM = tunica media

Wall of the Muscular Artery Arrow = T. Intima; TM = T. media; TA = T. adventitia TM TA

Wall of the Elastic Artery TI TM TA TI = T. Intima; TM = T. media; TA = T. adventitia

Arteriole (A) and Vein (V) V A

Thin section of a small arteriole

TEM of a fenestrated capillary with a RBC in the lumen

Diagram of the controls of blood flow through a capillary system

Venule (V) and small arteriole (A) V A

An arteriole (A) and venule (B) – arrow = capillary

Muscular artery and large vein

Wall of a vein – TI = T. Intima; TM = T. Media; TA = T. Adventitia TI TM TA

Vein with infoldings of the T. Intima = valves (V)