Male Reproductive System Parts
1 AnswerDr. Michael Roizen, MD , Internal Medicine, answeredSemen contains powerful-and potentially addictive-mood-altering chemicals, including testosterone, estrogen, prolactin, luteinizing hormone and prostaglandins. Some of these are absorbed through the walls of the vagina and are known to elevate mood. Though research shows that women who do not use condom during sex are less depressed, that doesn't mean you should practice unsafe sex. Studies have found no correlation between high-risk sexual behavior and lower rates of depression. So while I can think of no better mood elevator than great mutually monogamous sex, high-risk sex does not have the same benefits. After all getting an STD can be a real downer-or worse.
1 AnswerJohns Hopkins Medicine answered
The epididymis is a continuous, tightly coiled tube approximately 15-18 feet in length, which leads into the vas deferens. After sperm is produced in the testes and passes through the efferent ducts, sperm are stored and undergo maturation in the epididymis. Sperm that have not passed through the epididymis are generally not able to fertilize eggs under normal conditions. The vas deferens is responsible for directing and propelling sperm into the urethra.
1 AnswerYou might imagine that ejaculation -- the release of seminal fluid from your body -- is limited to your penis, testicles, and other reproductive organs, but you’d be wrong. In fact, your nervous system plays a key role.
Some parts of sexual arousal fall within parasympathetic nervous system responses and other processes fall within sympathetic. The sympathetic nervous system controls your body’s stress-related functions like the “fight or flight” response, which allowed your caveman ancestors to battle or escape dangerous predators. (These days, you’re more likely to rely on your fight-or-flight response before a big meeting with your boss.) Your parasympathetic nervous system controls your “rest and digest” response -- lower blood pressure, a slower heartbeat, and other functions related to relaxation.
The process begins when you’re sexually aroused, often -- but not always -- from the direct physical stimulation of your penis during touching, rubbing, oral sex, or intercourse, for example. Your brain responds by sending signals to your lower spinal cord. You get an erection, thanks to your parasympathetic nervous system. As a result, the muscles in your prostate gland, seminal vesicles (both of which produce seminal fluid), and vas deferens (the tube that connects the testicles to the urethra) contract rhythmically, moving semen through those glands and the urethra and out of your body, a process controlled by the sympathetic nervous system. An orgasm is the sensation of pleasure you feel during ejaculation.
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1 AnswerDr. Stuart A. Linder, MD , Plastic Surgery, answeredGynecomastia can be defined as breast tissue found in a male. In general gynecomastia can be categorized with the "Tanner "stage or levels. A mild form of gynecomastia presents with a small amount of fat usually found distributed throughout the chest wall, however no significant amount of glandular tissue behind the nipple areolar complex. The most severe stage of gynecomastia is associated with thick glandular gynecomastic tissue retroareolar [ behind the nipple} as well as skin laxity. The etiology of gynecomastia can include steroid abuse, medications, thyroid disease, adrenal carcinomas, testicular cancers, hypogonadism, renal and liver diseases and marijuana use. Gynecomastia can normally be detected clinically by examination by a Board Certified Plastic Surgeon. The tissue behind the areola is often very thick and hard and cannot be suctioned out through liposuction. For mild gynecomastia , liposuction of the chest wall is successful but with more severe cases a small incision under the areola and a partial subcutaneous mastectomy [direct removal of thick tissue} leads to a better result, smoother chest wall and a flatter appearance.