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A sexually transmitted infection (STI), also referred to as a sexually transmitted disease (STD) and the older term venereal disease (VD), is an infection that is spread by sexual activity, especially vaginal intercourse, anal sex, oral sex, or sometimes manual sex.
Under electron microscopy, it appears as a flask-shaped cell with a narrow terminal portion that is crucial for its attachment to the host cell surfaces. [54] The bacterial cell is slightly elongated, somewhat like a vase, and measures 0.6–0.7 μm in length, 0.3–0.4 μm at the broadest region, and 0.06–0.08 μm at the tip.
Trichomoniasis is a sexually transmitted infection (STI) most often spread by vaginal, oral, or anal sex. [1] It can also spread through genital touching (manual sex). [1] People who are infected may spread the disease even when symptoms are not present. [2]
They may be found anywhere in the anal or genital area, and are frequently found on external surfaces of the body, including the penile shaft, scrotum, or labia majora. They can also occur on internal surfaces like the opening to the urethra , inside the vagina , on the cervix , or in the anus .
The Human Cell Atlas project, which started in 2016, had as one of its goals to "catalog all cell types (for example, immune cells or brain cells) and sub-types in the human body". [13] By 2018, the Human Cell Atlas description based the project on the assumption that "our characterization of the hundreds of types and subtypes of cells in the ...
Gross anatomy - systemic or region-wise study of human body parts and organs. Gross anatomy encompasses cadaveric anatomy and osteology. Comparative anatomy - the study of evolution of species through similarities and differences in their anatomy. Microscopic anatomy . Cell biology and cytogenetics. Surface anatomy. Radiological anatomy.
Micrograph of a clue cell (center), covered in bacteria, as compared to an unremarkable squamous cell at bottom left, and a neutrophil at bottom center. Pap stain Phase contrast microscopy of clue cells in a vaginal swab. Clue cells are epithelial cells of the vagina that get their distinctive stippled appearance by being covered with bacteria ...
Sexually transmitted infections (STIs), also referred to as sexually transmitted diseases (STDs), are infections that are commonly spread by sexual activity, especially vaginal intercourse, anal sex and oral sex. [1] [2] The most prevalent STIs may be carried by a significant fraction of the human population.