Erithrocytes
CHAPTER ONE INTRODUCTION/LITERATURE REVIEW THE ERYTHROCYTES
A cell that contains haemoglobin and can carry oxygen to the body. Also called a red blood cell (RBC). The reddish colour is due to haemoglobin. Erythrocytes are biconcave in shape which increases the cells surface area and facilitates the diffusion of oxygen and carbon dioxide. This shape is maintained by a cytoskeleton composed of several proteins.
Erythrocytes are very flexible and changes shapes when flowing through capillaries. Immature erythrocytes, called the reticulocytes normally account for 1-2 percent of red blood cells in the blood.
Red blood cells erythrocytes are the most common type of blood cell and the vertebrate organism’s principal means of delivering oxygen (O2) to the body tissues through the blood flow through the circulatory system. They take up oxygen in the lungs or gills and release it while squeezing through the body’s capillaries. These cells cytoplasm is rich in haemoglobin, an iron containing biomolecules that can bind oxygen and is responsible for the blood’s red colour.
In humans, mature red blood cells are oval and flexible biconcave disks. They lack a cell nucleus and most organelles to accommodate maximum space for haemoglobin. 2.4 million New erythrocytes are produced per second. The cells develop in the bone marrow and circulate for about 100-120 days in the body before their components are recycled by macrophages. Each circulation takes about 20 seconds approximately a quarter of the cells in the human body are red blood cells. Red blood corpuscles (an archaic term), haematoid, erythroid cells or erythrocytes (from Greek erythros for “red” and kytos for “hollow”, with cytes translated as “cell” in modern usage). HISTORY OF THE ERYTHROCYTES
The first person to describe red blood cells was the young Dutch biologist Jan Swammerdam, who had used an early microscope in
A cell that contains haemoglobin and can carry oxygen to the body. Also called a red blood cell (RBC). The reddish colour is due to haemoglobin. Erythrocytes are biconcave in shape which increases the cells surface area and facilitates the diffusion of oxygen and carbon dioxide. This shape is maintained by a cytoskeleton composed of several proteins.
Erythrocytes are very flexible and changes shapes when flowing through capillaries. Immature erythrocytes, called the reticulocytes normally account for 1-2 percent of red blood cells in the blood.
Red blood cells erythrocytes are the most common type of blood cell and the vertebrate organism’s principal means of delivering oxygen (O2) to the body tissues through the blood flow through the circulatory system. They take up oxygen in the lungs or gills and release it while squeezing through the body’s capillaries. These cells cytoplasm is rich in haemoglobin, an iron containing biomolecules that can bind oxygen and is responsible for the blood’s red colour.
In humans, mature red blood cells are oval and flexible biconcave disks. They lack a cell nucleus and most organelles to accommodate maximum space for haemoglobin. 2.4 million New erythrocytes are produced per second. The cells develop in the bone marrow and circulate for about 100-120 days in the body before their components are recycled by macrophages. Each circulation takes about 20 seconds approximately a quarter of the cells in the human body are red blood cells. Red blood corpuscles (an archaic term), haematoid, erythroid cells or erythrocytes (from Greek erythros for “red” and kytos for “hollow”, with cytes translated as “cell” in modern usage). HISTORY OF THE ERYTHROCYTES
The first person to describe red blood cells was the young Dutch biologist Jan Swammerdam, who had used an early microscope in