What are erythrocytes? “Erythrocytes” is the medical term for red blood cells (red blood cells). They contain the red blood pigment hemoglobin, have a disc-shaped appearance and – unlike other body cells – no longer have a nucleus. Therefore, erythrocytes can no longer divide and perish after about 120 days. They are then broken down … Erythrocytes: What Your Lab Value Means
Bone marrow is not only a substance which performs a very crucial, even vital function in the organism. Bone marrow is considered a delicacy by many people, rich in energy, especially fat. In addition, in the case of diseases of the bone marrow, there are significant health consequences. What is bone marrow? Behind the somewhat … Bone Marrow: Structure, Function & Diseases
Laser Doppler fluxmetry is a diagnostic procedure that provides information about skin microcirculation and is based on the Doppler effect. A helium laser emits light that is reflected by moving erythrocytes in the blood. The amount of reflected light allows conclusions to be made about flow velocity. What is laser Doppler fluxmetry? Laser Doppler fluxmetry … Laser Doppler Fluxmetry: Treatment, Effects & Risks
Phenotypic variation describes different trait expressions of individuals with the same genotype. The principle was popularized by the evolutionary biologist Darwin. Diseases such as sickle cell anemia are based on phenotypic variation and were originally associated with an evolutionary advantage. What is phenotypic variation? By phenotypic variation, biology refers to the different trait expressions between … Phenotypic Variation: Function, Role & Diseases
Fibrin is a nonwater-soluble, high-molecular-weight protein formed from fibrinogen (clotting factor I) during blood clotting by enzymatic action of thrombin. The medical specialties are histology and biochemistry. What is fibrin? During blood clotting, fibrin is formed from fibrinogen under the action of thrombin. Soluble fibrin, also called fibrin monomers, is formed, which polymerizes into a … Fibrin: Structure, Function & Diseases
Bilirubin is a breakdown product in hemoglobin metabolism. Macrophages continuously break down old erythrocytes in the liver and spleen to generate bilirubin. If this process is disturbed, the substance accumulates and jaundice develops. What is bilirubin? Bilirubin is the breakdown product of red blood pigment. This pigment is also known as hemoglobin. Red blood cells … Bilirubin: Structure, Function & Diseases
With circulatory disorders, many people suffer from cold hands and feet. The fact that behind it, however, serious diseases can hide, is often not aware of those affected. A visit to the doctor to clarify the cause is therefore useful and advisable. Cold limbs are often a sign of arterial circulatory disorders, and these must … Circulatory Disorders: Causes, Symptoms & Treatment
Termination is the final phase in DNA replication. It is preceded by initiation and elongation. Premature termination of replication can result in the expression of truncated proteins and thus mutation. What is termination? Termination is the final stage in DNA replication. During replication or reduplication, the genetic information carrier DNA is multiplied in individual cells. … Termination: Function, Tasks, Role & Diseases
Paroxysmal nocturnal hemoglobinuria (PNH) represents a rare and severe disorder of hematopoietic cells that is genetic but acquired later in life. Because it is a somatic mutation, germ cells are not affected. If left untreated, the disease can be fatal mainly due to the development of multiple thromboses. What is paroxysmal nocturnal hemoglobinuria? Paroxysmal nocturnal … Paroxysmal Nocturnal Hemoglobinuria: Causes, Symptoms & Treatment
Erythropoietin, or EPO for short, is a hormone in the glycoprotein group. It functions as a growth factor in the production of red blood cells (erythrocytes). What is erythropoietin? EPO is a hormone produced in the cells of the kidneys. It is composed of 165 amino acids in total. The molecular mass is 34 kDa. … Erythropoietin: Function & Diseases
The erythrocyte deformability or flexibility of red blood cells enables the cells to pass through vessels with different lumens. In addition, erythrocytes change shape depending on the temperature and flow rate of the blood, with concomitant changes in blood viscosity. Abnormal shape is assumed by erythrocytes in the context of spherical or sickle cell anemia, … Erythrocyte Deformability: Function, Role & Diseases
Every human and animal cell is enveloped by a semipermeable membrane. It protects the cell interior against harmful influences from the outside, and it is responsible for the necessary exchange of substances from the outside to the inside as well as from the inside to the outside. In a third function, the membrane takes over … Cell Membrane: Structure, Function & Diseases