Category: B

Bile forced back into the stomach and ejected with vomited matter.  

One of the five embryonic subdivisions of the brain.  

Changing of the position of the fetus by combined internal and external manipulation. A procedure where the baby’s head and pelvis are both manipulated during version.  

An animal vector in which the disease-causing organism multiplies or develops prior to becoming infective for a susceptible person.  

Fluctations in the fetal heart rate, recorded by the electronic monitor, that reflect the status of the fetal autonomic nervous system. Absence of short-term variability (beat-to-beat changes) is a sign of fetal compromise. Long-term variability (wavelike undulations) occurs normally three to five times per minute. Increased long-term variability is common during fetal sleep but may…

A synthetic artificial heart valve that is no longer commercially available but remains implanted in thousands of patients. The valve has been known to fracture at its struts during use, which results in death in the majority of cases.  

The small erectile body on each side of the vestibule of the vagina.  

A suspension of killed or attenuated bacteria; used for injection into the body to produce active immunity to the same organism. A bacterial emulsion, whether containing killed, live, or weakened bacteria, employed to boost the immunity of a patient afflicted with an infection caused by the same microorganism.  

A uterus in which the body is partially divided by a median septum.  

Brightness mode display: in ultrasonography, the use of dots of differing intensities to represent echoes received from tissues that more strongly or weakly reflect sound waves.