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Mantoux test injection site in a subject without chronic conditions or in a high-risk group clinically diagnosed as negative at 50 hours. Tuberculin is a glycerol extract of the tubercle bacillus. Purified protein derivative (PPD) tuberculin is a precipitate of species-nonspecific molecules obtained from filtrates of sterilized, concentrated ...
The male reproductive system consists of a number of sex organs that play a role in the process of human reproduction. These organs are located on the outside of the body, and within the pelvis . The main male sex organs are the penis and the scrotum, which contains the testicles that produce semen and sperm, which, as part of sexual ...
Human reproduction is sexual reproduction that results in human fertilization to produce a human offspring. It typically involves sexual intercourse between a sexually mature human male and female. [ 1] During sexual intercourse, the interaction between the male and female reproductive systems results in fertilization of the ovum by the sperm ...
The male external genitalia include the penis and the scrotum. The female external genitalia include the clitoris, the labia, and the vestibule, which are collectively called the vulva. External genitalia vary widely in external appearance among different people. One difference between the glans penis and the glans clitoridis is that the glans ...
Human penis. In human anatomy, the penis ( / ˈpiːnɪs /; pl.: penises or penes; from the Latin pēnis, initially "tail" [ 1]) is an external male sex organ ( intromittent organ) that serves as a passage for excretion of urine and ejaculation of semen. The main parts are the root, body, the epithelium of the penis including the shaft skin, and ...
Testosterone is the primary male sex hormone and androgen in males. [ 3] In humans, testosterone plays a key role in the development of male reproductive tissues such as testicles and prostate, as well as promoting secondary sexual characteristics such as increased muscle and bone mass, and the growth of body hair.
The one-sex and two-sex theories are two models of human anatomy or fetal development discussed in Thomas Laqueur 's book Making Sex: Body and Gender from the Greeks to Freud. Laqueur theorizes that a fundamental change in attitudes toward human sexual anatomy occurred in Europe in the 18th and 19th centuries.
More. 4. Stimulate it from the outside. ICYMI: The prostate can also be stimulated externally by feeling the area along the perineum, the swath of skin between the anus and the scrotum, says Box ...