Blood cells, SEM

Sickle cell anaemia, illustration

Leukaemia blood cells, SEM

Blood vessel blocked in sickle cell anaemia, illustration

Blood cells, SEM

Human red blood cells, activated platelets, and fibrin threads, coloured scanning electron micrograph (SEM). Human red blood cells (RBCs), or erythrocytes, are involved in delivering oxygen to the body tissue. The cytoplasm of RBCs is rich in...

Human red blood cells, two T lymphocytes and platelets, coloured scanning electron micrograph (SEM). Red blood cells (RBCs), or erythrocytes, are the most common type of blood cell in vertebrates. They are involved in delivering oxygen to the body...

Coloured scanning electron micrograph (SEM) of red blood cells (RBCs, erythrocytes). Red blood cells are biconcave, disc-shaped cells that transport oxygen from the lungs to body cells. They circulate in the blood and also remove carbon dioxide to the...

Blood vessel blocked in sickle cell anaemia, illustration

Blood vessel blocked in sickle cell anaemia, illustration

Human red blood cells, two T lymphocytes and platelets, coloured scanning electron micrograph (SEM). Red blood cells (RBCs), or erythrocytes, are the most common type of blood cell in vertebrates. They are involved in delivering oxygen to the body...

Human red blood cells, two T lymphocytes and platelets, coloured scanning electron micrograph (SEM). Red blood cells (RBCs), or erythrocytes, are the most common type of blood cell in vertebrates. They are involved in delivering oxygen to the body...

Three Ways Bacteria Cause Damage to the Body Unlabeled

Conceptual image of a blood vessel.

Conceptual image of a blood vessel.

Erythropoietin bound to receptors

Haemoglobin molecule

Haemoglobin molecule

Narrowed artery near leg with microscopic close-up.

Red blood cells carry oxygen to all body tissues, illustration.