While the heart with its pumping capacity is responsible for maintaining the blood circulation, four heart valves ensure that the blood always flows in the same direction. The two pocket flaps are each in the starting area

The water-electrolyte balance of the organisms is crucial for the normal course of all biochemical processes. The chemical reactions necessary for life only take place in an aqueous environment. This is the distribution of fluids in the body

Neurotrophic keratopathy is a disease of the eye, especially its cornea (medical cornea). It is caused by damage to the very sensitive nerve tissue there, with serious consequences for the entire eye. In science

The scrotum (scrotum) is one of the male genital organs. It consists of skin and muscle tissue and envelops the testicles, epididymis and parts of the spermatic duct and the spermatic cord.

Nicotinamide adenine dinucleotide phosphate is a coenzyme that can transfer electrons and hydrogen. It is involved in numerous reactions in the cell metabolism and is formed from vitamin B3 (nicoic acid amide or niacin).

The uppermost area of ​​the human body is called the head. This lies on the neck and is also connected to it. The head has many important functions, contains important sensory organs and a large part of the central nervous system

The sternoclavicular joint (SC joint) is the connection between the breastbone (sternum) and the collarbone (clavicle). Also known as the medial clavicle joint (more rarely functional ball joint), it is the only bony hinge

The submental artery is a small artery that originates from the facial artery. The submental artery supplies the facial muscles with blood and is jointly responsible for brain function through its connection with larger arteries that flow into the brain

Joint swelling describes a painless or painful enlargement of the joint. Any joint in the whole body can be affected.

Control loops in the human body maintain various vital parameters and processes. The pH value, the blood hormone level, the body temperature or the oxygen tension of the blood are kept constant with the help of control loops.

Schöpf-Schulz-Passarge syndrome is a skin disease. It is very rare and is a hereditary disease. Symptoms in the patient mainly affect the head and face.

We speak of twins or multiple births when instead of one expected baby, two, three or more children are born. However, multiple pregnancies are not without risk.