A normal-sized prostate is about the shape and size of a walnut, approximately 16 cubic inches in the average 60-year old male. The prostate generally enlarges as men age.
The prostate is a gland that functions by secreting a male's seminal fluid, constituting around 80 percent of the ejaculatory substance. The size of the prostate is often correlated with the development of prostate cancer in men, which accounts for an average 27,000 annual fatalities. Prostate-specific antigen, or PSA, which is produced by the prostate, is an indicator whether cancer cells are present in the gland. Men with smaller prostates are more prone to produce elevated levels of PSA due to a malignant tumor, whereas men with larger prostates containing increased quantities of PSA may be the result of a benign enlargement of the prostate as claimed by a group of researches from the Vanderbilt-Ingram Cancer Center.Learn More
Eyebrow loss signifies a range of disorders in the body, from eyelid inflammation to a variety of autoimmune disorders, according to the International Journal of Trichology. The loss of the eyebrows is a clinical hallmark of leprosy in India.Full Answer >
According to Encyclopedia Britannica, the main function of the ejaculatory duct is to combine the sperm stored in the ampulla with seminal fluids and then transport them to the prostate. Healthline also states that semen flows through these ejaculatory ducts during ejaculation in order to exit the body.Full Answer >
A bronchus is an airway within the lungs, and its function is to carry air through the lung tissue. There are two primary bronchi, which split into the right and left lungs at the base of the trachea.Full Answer >
Tongue rolling was once believed to be purely a genetic trait. However, Dr. John H. McDonald of the University of Delaware points out that recent studies show that there are factors beyond genetics in determining who can and cannot roll their tongue.Full Answer >