Krperprozesse

Heart rhythm is the complete repetitive sequence of heartbeats, including electrical excitation and cardiac muscle contractions. In people with a healthy cardiovascular system, the atria first contract and pump

In clinical usage, systole is used to describe the tension and subsequent contraction phase of the two heart chambers. During the contraction phase, the two leaflet valves are through which the blood from the two antechambers into the chambers

Flexion is one of the main movements in the human motor system. It occurs on the spine and many limb joints.

Squatting as a posture has gone a bit out of fashion in industrialized countries. The squat can have positive effects on the musculoskeletal system in everyday life and in sports.

There are 3 different causes of muscle breakdown. On the one hand, the “normal” loss in the context of the aging process comes into question. On the other hand, the decrease in muscle mass can be the result of inactivity or a disease of the muscles or the nervous system

In holocrine secretion, gland cells themselves become part of a secretion by perishing during secretion. Such a mechanism is present in the human organism in the secretion of sebum. Both overproductions, and

One of the reasons why many people today have problems maintaining or losing weight is a disturbed feeling of satiety. There can be different reasons.

The medical term ossification refers to the growth of bones, also known as bone formation. A synonym is ossification. It is the formation of bone tissue during the growth phase and in the callus (scar tissue for bridging

The near fixation is the visual concentration on a stimulus in the immediate vicinity. The pit of vision is the retinal point of sharpest vision and is used for fixation. For near fixation, close accommodation of the eye is required in addition to the pit

The muscle tone is the internal tension of the muscular apparatus. Even at rest, the muscles have a certain internal tension and resistance to external stimuli, which is also known as the resting tone. Disturbances in muscle tone manifest themselves either

Mydriasis is understood as the enlargement or widening of the pupil. The entire iris area is reduced, the intraocular pressure is increased and the leakage of aqueous humor is reduced. During the renaissance, there was dilation of the pupil

It is known that the pupil changes as soon as it is exposed to high or low light exposure. The effect occurs z. E.g. when someone comes from bright daylight into a dark room. The eye always adjusts itself this way

The convergence reaction describes on the one hand the reflex narrowing of the pupils when converging and on the other hand the inward movement of both eyes when fixating close objects. Impairments to convergence can include strabismus

“You can't not communicate!” This quote from Paul Watzlawick is reality. As soon as people come into contact with other people, they are in contact with their environment. The ability to communicate is important to human survival

The medical term perfusion pressure describes the pressure with which an organ or tissue structure to be supplied is supplied with blood. Mathematically, the level of the perfusion pressure results from the difference between the blood pressure

The rebound effect is particularly important after stopping a long medication. Mechanisms originally intended for the adaptation of the body can lead to undesirable side effects in medicine and other fields.

A sexual orientation is called homosexuality. There is a romantic and erotic desire for one's own gender.

At the beginning of the 18th century, the term heterosexuality was coined by Karl Maria Kertbeny. It is made up of the Greek “heteros” and the Latin “sexus” and thus explains the word formation from the parts “the other, the unequal

In the past, the term gender, especially in the German-speaking area, exclusively referred to the biological differences between men and women.

Sexual intercourse is usually initiated by the sexual arousal of those involved. It makes reproduction more attractive and gives pleasure. The sexual arousal takes place in different phases.