Pulse Oximetry: Treatment, Effects & Risks

Pulse oximetry uses a noninvasive, photometric method to determine the oxygen saturation of arterial blood by attaching a clip containing infrared light sources and a receiver to the patient’s skin. This clip determines the light absorption of the blood based on the fluoroscopy rate and, when converted to blood oxygen saturation, takes advantage of the … Pulse Oximetry: Treatment, Effects & Risks

Capillary

Definition When we talk about capillaries (hair vessels), we usually mean the blood capillaries, although we must not forget that there are also lymph capillaries. Blood capillaries are one of three types of vessels that can be distinguished in humans. There are the arteries that transport the blood away from the heart and the veins … Capillary

Structure of capillaries | Capillary

Structure of capillaries The structure of a capillary resembles a tube. The diameter of a capillary is about five to ten micrometers. Since the red blood cells (erythrocytes) that flow through the capillaries have a diameter of about seven micrometers, they must deform somewhat when they flow through the small blood vessels. This minimizes the … Structure of capillaries | Capillary

Functions of capillaries | Capillary

Functions of capillaries The function of the capillaries is mainly mass transfer. Depending on where the capillary network is located, nutrients, oxygen and metabolic end products are exchanged between the bloodstream and the tissue. Nutrients are supplied to the tissue, waste products are absorbed and carried away. Depending on the oxygen requirement of a particular … Functions of capillaries | Capillary

Vessels

Synonyms Latin: vas Greek: angio Definition A vessel in a body is comparable to a tube that transports the body fluids lymph and blood. Depending on which fluid flows through this pipe system, a distinction is made between: All pipe systems in which other body fluids are transported are called “ductus” (lat. Ductus). This includes … Vessels

Physiology | Vessels

Physiology The blood vessels have the ability to increase or decrease the lumen of the vessel and thus modify the blood flow. To do this, they require the muscle layer of the tunica media, which tenses or relaxes the muscles through nerves supplied by vegetative nerves. This results in either one: since the arteries have … Physiology | Vessels

The human blood circulation

Definition The blood circulation consists of the heart and the blood vessels. The heart serves as a pump to pump the blood in the vessels through the body. For this purpose, the human body has a vascular system that branches out from the large vessels that originate directly from the heart to reach every part … The human blood circulation

Classification of the blood circulation | The human blood circulation

Classification of the blood circulation The blood circulation is divided into a large circulation, the body circulation, and a small circulation, the lung circulation. In order to understand these two circuits, one must first understand the structure of the heart. The heart consists of two ventricles (ventricles) and two atria (atria). The left atrium and … Classification of the blood circulation | The human blood circulation