The pineal gland is a small endocrine gland in the brain that mainly controls the circadian rhythm, or sleep-wake rhythm of the body via the hormone melatonin and serotonin in alternation. The pineal gland is of enormous importance because it not only controls many bodily functions depending on the time of day, but the hormonal … Pineal Gland: Structure, Function & Diseases
Intracytoplasmic sperm injection, ICSI, is a proven method of reproductive medicine that has helped many childless couples achieve a desired child. ICSI is now the most commonly used method in artificial insemination. What is intracytoplasmic sperm injection? In the ICSI method, a single sperm is actively fused with an egg under microscopic control. Quite different … Intracytoplasmic Sperm Injection: Treatment, Effects & Risks
Behind the complicated appearing term “cryptorchidism” hides a positional anomaly of the testis, thus a wrong positioning of the testis in the body. Originally the “Kryptorchismus” describes a not discoverable testis. This is usually the case when the testis has not descended completely into the scrotum during embryonic development and has remained in the abdominal … Cryptorchidism
Cause For a malfunction of the testis – or cryptorchidism – a maldevelopment in embryonic maturation is responsible. During the 28th to 32nd week of pregnancy, the testis on both sides usually begins its descent from the abdominal cavity into the scrotum. The abdominal cavity represents its original site of attachment. During fetal and embryonic … Cause | Cryptorchidism
Diagnosis A diagnosis of cryptorchidism can be made very easily by palpation. Since the child is not yet able to give information about his or her symptoms, the doctor is also dependent on the observations of the parents. Thus in the discussion likewise reference points for a possible Kryptorchismus can be found. Apart from that, … Diagnosis | Cryptorchidism
The medical subfield of reproductive medicine has existed since the 1980s and is concerned with the study, diagnosis, and treatment of fertility. In vitro and in vitro fertilization are among the most important orientations of reproductive medicine procedures. In the field of research, reproductive medicine is additionally concerned with the analysis of social and ethical … Reproductive Medicine: Treatment, Effects & Risks
Humans have approximately 350 different olfactory receptors, each of which has a specific odor molecule docked to its cilia, triggering activation of the cell. Via the collected messages of the olfactory receptors, the brain creates the conscious olfactory impression. The olfactory receptors, numbering several million, are located mainly in the olfactory mucosa, a small area … Olfactory Receptor: Structure, Function & Diseases
Synonyms Lat. = Testis (Pl. Testes) Definition The paired testicles (Testis) belong together with the epididymis, the spermatic duct and the male sex glands (vesicle gland and prostate) to the internal male sex organs. They serve the production of sperm cells (sperm) and are located below the male member. Each testicle is “suspended” from the … Testicles
Histology of the testis Microscopically the testis is divided into about 370 testicular lobules (Lobuli testis), which are separated from each other by connective tissue septa. Each testicular lobe consists of 1 to 4 testicular tubules (Tubuli seminiferi), which are strongly compressed by tangling. The testicular tubules are formed by two cell types, the Sertoli … Histology of the testis | Testicles
Testicles of different sizes Although the two testicles lie together in the scrotum they are biologically to be regarded as two separate organs. Therefore it is quite possible that there is a difference in size between the two sides. This is not a cause for concern at first and, to a small extent, usually has … Testicles of different sizes | Testicles
Pain in the testicles A twisted testicle is a very painful experience for the man. The pain of testicular twisting is often quite variable and depends strongly on the cause or the age of the patient. With a twisted testicle, which has already developed in the womb, there is hardly any pain and the newborn … Pain in the testicles | Testicles
Causes of tickling testicles Sensory disturbances such as tingling are generally very unspecific. It is therefore difficult to determine the cause of these sensations without further symptoms. Possible causes can be pathological processes in the testicles, such as circulatory disorders, inflammation or tumors. Frequently, however, sensations such as tingling indicate nerve irritation. This can either … Causes of tickling testicles | Testicles
