Ejaculation - Wikidoc > 자유게시판

Ejaculation has two phases: emission and ejaculation correct. The emission part of the ejaculatory reflex is below control of the sympathetic nervous system, while the ejaculatory section is below control of a spinal reflex at the extent of the spinal nerves S2-4 by way of the pudendal nerve. Throughout emission, the 2 ducts known as vas deferens contract to propel sperm from the epididymis where it was saved up to the ampullae at the highest finish of the vas deferens. The beginning of emission is usually skilled as a "point of no return," also called point of ejaculatory inevitability. The sperm then passes via the ejaculatory ducts and is combined with fluids from the seminal vesicles, site [wiki.psychedelic-lab.com] the prostate, and the bulbourethral glands to kind the semen, or ejaculate. Throughout ejaculation correct, the semen is ejected through the urethra with rhythmic contractions.[1]

During heterosexual intercourse, the vagina provides sexual stimulation to the penis, typically leading to orgasm and ejaculation. Usually, ejaculation is required for emission of sperm; if ejaculation happens whereas the penis is either close to or throughout the girl's vagina, sperm can then fertilize a lady's egg and impregnate her. Nonetheless, nearly all men produce a small quantity of pre-ejaculate fluid when their penis is erect and they're sexually stimulated, and this pre-ejaculate might include some sperm which can also result in pregnancy. Because of this, coitus interruptus may still result in unwanted pregnancies for couples participating in vaginal intercourse if different types of start control are usually not used as effectively.

Unfortunately, it is tough to eradicate false-positive take a look at outcomes. For example, a mammogram could accurately show abnormal cells within the breast ducts that would grow to be cancerous, when in actuality they aren't life-threatening and won't trigger symptoms [supply: National Most cancers Institute]. Patients screening for ovarian most cancers may be given a cancer antigen 125 blood test (CA-125). If a lady's CA-125 level is elevated, cancer is suspected and additional testing could consequence. The problem is, plenty of other situations can cause an elevated CA-125 level, reminiscent of diverticulitis, pregnancy and even normal menstruation, so the take a look at is not beneficial for women with solely a mean danger of ovarian cancer [source: Laughlin-Tommaso].

Wind Damp: Arthritis is a manifestation of this sample. Like dampness in nature, which is persistent and requires time to eradicate, the dampness pathogenic affect is troublesome to cure and takes a while to resolve. The influence of wind additionally causes the ache to migrate from joint to joint, generally disappearing for some time solely to reappear with out warning. Treatment for this syndrome consists of herbs that drain dampness and improve circulation of qi and blood through the affected areas. Moxibustion therapy -- the appliance of heat -- is particularly useful in this situation.

Spina bifida: Spina bifida is a failure within the closure of the bony vertebral column with or without protrusion of the nerve tissue of the spinal cord. Paralysis beneath the defect usually accompanies spina bifida if the spinal cord does protrude. When the spinal cord does not protrude, the vertebral defect may go unnoticed. Clues to point the presence of this form of spina bifida are abnormalities of the skin and tufts of hair overlying the spine in the decrease a part of the again.