What is the heartbeat? The heartbeat marks the rhythmic contraction of the heart muscle (systole), which is followed by a short relaxation phase (diastole). It is triggered by electrical impulses of the excitation conduction system, which originate in the sinus node. The sinus node is a collection of specialized cardiac muscle cells in the wall … Heartbeat: More about Function and Disorders
What is the pharynx? The pharynx is a 12 to 15 cm long muscular tube lined with mucous membrane. It is divided into three sections lying one below the other. From top to bottom are the nasopharynx, oral pharynx and laryngeal pharynx: The openings of the nasal cavity (choanas) and the two ear trumpets (tuba … Throat: Function, Anatomy, and Disorders
What is the hand? The most important gripping organ of the human body is divided into the carpus, metacarpus and fingers. The carpus is formed by eight small, squat bones, four of which are distributed over two transverse rows and named after their shape: Scaphoid, lunate, triangular and pea bones are arranged toward the forearm, … Hand: Function, Anatomy, and Disorders
What is the blood circulation? The circulatory system is a self-contained vascular system with supply and disposal functions. It supplies all the body’s cells with vital substances such as oxygen (bound to the red blood pigment hemoglobin), nutrients, vitamins and minerals. Waste products (such as carbon dioxide), on the other hand, are transported away from … Blood circulation: structure, functions, and disorders
What is the inner ear? The inner ear is an organ that combines two functions: hearing and the sense of balance. The inner ear is located in the petrous pyramid (part of the temporal bone) and is adjacent to the wall of the tympanic cavity, to which it is connected via the oval and round … Inner Ear: Structure, Function, Disorders
What is the Achilles tendon? The strong but not very elastic tendon connects the lower leg muscles with the foot skeleton. Without it, stretching the foot and thus walking or toe walking would not be possible. The Achilles tendon is about 20 to 25 centimeters long, up to 5 centimeters wide at its thickest point … Achilles tendon: Function, Anatomy, and Disorders
In a manual treatment, the hands of the treating therapist are basically the most important working tool. He has learned in his training a wide variety of examination methods and forms of treatment to remedy a grievance on the body of his patient. Nevertheless, the forms of therapy differ, as they are partly based on … Chiropractic Therapy: Types of Therapy
Manual medicine/chirotherapy is used when a joint in the spine or periphery is restricted in its movement – that is, when there is pain and reduced mobility in the spine, shoulders, pelvic area or chest. It should not be used for recent injuries to the spine or joints, a herniated disc, inflammation or tumors in … Chiropractic Therapy: When to Use Which Therapy?
The butterfly-shaped thyroid gland absorbs iodine from the blood and uses it to produce vital hormones for the body’s metabolism. Hyperthyroidism or hypothyroidism throws this interaction out of balance. Read more about the causes, symptoms and treatment of hypothyroidism or hyperthyroidism here. Tasks of thyroid hormones The thyroid hormones triiodothyronine and thyroxine have important functions … Thyroid Function Disorders
The intestine and the immune system are closely related. If the intestine is weakened, the entire immune system loses strength. And vice versa, if the immune system is weak, the gastrointestinal tract may be disturbed. In both cases, the intestinal flora gets out of balance. The intestinal flora – this is the term for the … Intestine and Immune System
Sky-high joy and the next moment everything is gray in gray, culminating in the realization: no one understands me. Puberty is characterized by a complex pattern of different developmental tasks and is accompanied by a roller coaster of emotions. The majority of adolescents manage to cope with the chaos, but 18% get into a psychosocial … Puberty: Important Warning Signs of Mental Disorders
This very rare disease (1: 200,000) is caused by a defect in the enzyme alpha-decarboxylase, so that the three amino acids leucine, isoleucine and valine cannot be converted. As a result, these accumulate in the blood and urine and – similar to PKU – primarily damage the brain. The consequences are seizures, drinking and muscle … Disorders of Branched-Chain Amino Acid Metabolism
