Messenger Substances: Structure, Function & Diseases

Messenger substances are signaling substances that serve to transmit signals and information between organisms or between the cells of an organism. In this process, the signaling substances fulfill different functions. Disruptions in signaling within an organism can lead to significant health problems. What are second messengers? Messenger substances represent differently structured chemical substances that transmit … Messenger Substances: Structure, Function & Diseases

Bone Marrow Aspiration: Treatment, Effects & Risks

Bone marrow aspiration is performed to obtain biopsy marrow to diagnose hematologic diseases such as leukemia, malignant lymphoma, or plamacytoma. Before transfusion of blood products (bone marrow donation), the donor’s bone marrow is tested for compatibility. What is bone marrow aspiration? A bone marrow aspiration is performed to obtain biopsy marrow to diagnose hematologic diseases … Bone Marrow Aspiration: Treatment, Effects & Risks

Bone Marrow Transplantation: Treatment, Effects & Risks

Bone marrow transplantation involves the transfer of bone marrow, and therefore stem cells, to restore regular hematopoiesis. Bone marrow transplantation is generally indicated when the hematopoietic cell system has been severely compromised as a result of tumor disease or previous therapy (especially high-dose chemotherapy). What is bone marrow transplantation? Bone marrow transplantation involves the transfer … Bone Marrow Transplantation: Treatment, Effects & Risks

Thermal Regulation: Function, Tasks, Role & Diseases

Thermoregulation refers to all the regulatory processes involved in maintaining body temperature. Warm-blooded animals maintain a constant temperature, regardless of outside temperatures. The center of thermoregulation is the hypothalamus. What is thermoregulation? Thermoregulation refers to all the regulatory processes involved in maintaining body temperature. Warm-blooded animals must maintain their body temperature because the various systems … Thermal Regulation: Function, Tasks, Role & Diseases

Euler-Liljestrand Mechanism: Function, Tasks, Role & Diseases

The Euler-Liljestrand mechanism causes contraction of the vascular muscles in the pulmonary tracts when there is an insufficient supply of oxygen, which improves the ventilation-perfusion quotient of the lungs. The mechanism is a natural reflex that involves the lungs exclusively. The Euler-Liljestrand mechanism is pathologic at high altitudes, for example, where it promotes pulmonary edema. … Euler-Liljestrand Mechanism: Function, Tasks, Role & Diseases