Mother
(1) The female parent. (2) To produce offspring as a female. To attribute the maternity of. (3) A cell or other structure from which similar cells or structures are formed. Accordingly, such a cell might be referred to as the mother cell.(4) To provide maternal protection, guidance, and nurturing to children.
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A study for detecting and recording the contractions of the muscles of the stomach and the first part of the small intestine (the duodenum). An antro-duodenal motility study is performed to diagnose problems in the way the muscles of the stomach and small intestine are working. To conduct the study, a tube is passed through […]
- Motion sickness
A disorder of the sense of balance and equilibrium and, hence, the sense of spatial orientation that is caused by repeated motion such as from the swell of the sea, the movement of a car, or the motion of a plane in turbulent air. Motion sickness is due to irritation of a portion of the […]
- Motion, range of
The full movement potential of a joint, usually its range of flexion and extension. For example, a knee might lack 10 degrees of full extension due to an injury.
- Motor
Something that produces or refers to motion. For example, a motor neuron is a nerve cell that conveys an impulse to a muscle for contraction, which then moves a joint.
- Motor neuron
A neuron that sends electrical output signals to muscle neurons. Also called a motoneuron.