Bleeding or spotting later in pregnancy may be a sign of a serious problem, like: 1  Preterm labor. This is labor that happens too early, before 37 weeks of pregnancy. 2  Placenta previa. This is when the placenta lies very low in the uterus and covers all or part of the cervix. 3  Placental abruption.
Afferent definition, bringing to or leading toward an organ or part, as a nerve or arteriole (opposed to efferent). See more.
1. bringing to or leading toward an organ or part, as a nerve or arteriole (opposed to efferent). 2. a nerve that conveys an impulse toward the central nervous system. afferent-, s. of afferÄns, present participle of afferre to bring, deliver = af-af - + ferre to bear 1 ].afâ²ferâ¢entâ¢ly, adv.(Äfâ²Ér-Ént).oun. 1. afferent-a nerve that passes impulses from receptors toward or to the central nervous system. afferent nerve, sensory nerve. dorsal horn, dorsal root-one of the two roots of a spinal nerve that passes dorsally to the spinal cord and that consists of sensory fibers.