Category: M

A gland in which the cells remain intact during the elaboration and discharge of their secretion.  

The presence of two or more embryos in the uterus. Twin and higher gestations have greatly increased in the past two decades due to the increased use of ovulation induction agents and assisted reproduction technologies. Currently 3% of all births are multiple gestations. When twins are diagnosed by ultrasound early in the first trimester, in…

Reproductive organs of the male sex, including two bulbourethral (Cowper’s) glands, two  ejaculatory ducts, two glands producing spermatozoa (the testes or gonads), the penis with urethra, two seminal ducts (vasa deferentes or ducti deferentes), two seminal vesicles, two spermatic cords, the scrotum, and the prostate gland.  

Assignment of incorrect gender to a newborn. This may lead to the individual’s having a gender role opposite of the chromosomal sex.  

Dichlorethyl sulfide, a poisonous gas used in warfare.  

In radiographic image intensification, the ratio of the square of the input phosphor diameter to the square of the output phosphor diameter.  

Friction using a lubricant, such as a liquid, lotion, or oil.  

The ratio of the mass of a constituent to the total mass of the system in which the constituent is contained. The ratio of the mass of a component to the mass of the system of which the component is a part.  

The small triangular area between the posterior wall of the acoustic meatus and the posterior root of the zygomatic process of the temporal bone.  

The depression in the temporal bone into which the condyle of the mandible fits.