Epididymis
the ovule {ovary}
The pupil narrows in bright light to restrict the amount of light coming in. In low light conditions it will enlarge to allow more light in for greater vision.
Penis (in men) Clitoris, nipples (in women)
Tissue becomes part of an organism consisting of an aggregate of cells having a similar structure and function.
A female's pelvis is wider than a male's pelvis, especially if a woman has had a child. The male pelvis is narrower and remains narrower throughout life. Also note that some races have smaller buttocks while other races have larger buttocks. The only way to change buttocks that are narrower and flatter to get fuller, bigger, or plumper is if a person becomes obese or if they have filler injected (a surgical invasive procedure).
Epididymis
vas deferens
People will make fun of you for an eternity.
It becomes narrower.
The field of view becomes narrower.
When the slit separation increases, the diffraction pattern becomes wider, with narrower central maxima and weaker secondary maxima. Conversely, when the slit separation decreases, the diffraction pattern becomes narrower, with wider central maxima and stronger secondary maxima.
the size of the intervertebral foramen becomes narrower during normal flexion movement.
If you're talking about ONLY after arousal but not necessarily after intercourse, yes it's normal and a condition that males have complained about since the beginning of time.
Morula
The inner cell mass of the blastocyst is the structure that becomes the embryo. It contains the cells that will develop into the fetus.
the antrum
Corpus Luteum