| utricular reflexes | See: statotonic reflexes. (05 Mar 2000) |
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| utricular | 1. Of or pertaining to a utricle, or utriculus; containing, or furnished with, a utricle or utricles; utriculate; as, a utricular plant. 2. Resembling a utricle or bag, whether large or minute; said especially with reference to the condition of certain substances, as sulphur, selenium, etc, when condensed from the vaporous state and deposited upon cold bodies, in which case they assume the form of small globules filled with liquid. Origin: Cf. F. Utriculaire. Source: Websters Dictionary (01 Mar 1998) |
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| utricular cyst | Dilatation of the utricular lumen; usually unilocular. (05 Mar 2000) |
| utricular nerve | <anatomy, nerve> A branch of the utriculoampullar nerve, supplying the macula of the utricle. Synonym: nervus utricularis. (05 Mar 2000) |
| utricular spot | The neuroepithelial sensory receptor in the inferolateral wall of the utricle; hair cells of the neuroepithelium support the statoconial membrane and have terminal arborizations of vestibular nerve fibres around their bodies; sensitive to linear acceleration in the longitudinal axis of the body and to gravitational influences. Synonym: macula utriculi, utricular spot. (05 Mar 2000) |
| abdominal reflexes | Contraction of the muscles of the abdominal wall upon stimulation of the skin (superficial a. Reflex's) or tapping neighboring bony structures (deep a. Reflex's). Synonym: supraumbilical reflex. (05 Mar 2000) |
| allied reflexes | Reflex's which, acting toward a common purpose, can traverse the final common path together. (05 Mar 2000) |
| antagonistic reflexes | Reflex's which do not act toward a common purpose, and cannot together traverse the final common path. (05 Mar 2000) |
| attitudinal reflexes | Reflex's in which utricular receptors in the vestibular apparatus sense changes in the head's position in space in terms of linear acceleration and the earth's gravitational field while receptors in the neck muscles sense changes in the position of the head relative to the trunk; input from these receptors reflexly controls the tone of the limb muscles to maintain or regain the desired posture. Synonym: attitudinal reflexes. (05 Mar 2000) |
| body righting reflexes | Reflex effects upon the neck muscles which bring the head into the correct position in space caused by stimulation of pressoreceptors in the body wall by contact with the ground. (05 Mar 2000) |
| McCarthy's reflexes | Contraction of the adductors of the thigh upon tapping the spinal column. Synonym: McCarthy's reflexes. (05 Mar 2000) |
| cephalic reflexes | Reflex's associated with the cranial nerves. (05 Mar 2000) |
| righting reflexes | Reflex's which through various receptors, in labyrinth, eyes, muscles, or skin, tend to bring an animal's body into its normal position in space and which resist any force acting to put it into a false position, e.g., on its back. See: body righting reflexes, labyrinthine righting reflexes, neck reflexes, optical righting reflexes. Synonym: static reflexes. (05 Mar 2000) |
| proprioceptive reflexes | <physiology> Any reflex brought about by stimulation of proprioceptors. See: proprioceptor. (05 Mar 2000) |
| skin-muscle reflexes | Superficial or cutaneous reflex's, such as the superficial abdominal reflex's. Synonym: skin reflexes. (05 Mar 2000) |
| skin reflexes | Superficial or cutaneous reflex's, such as the superficial abdominal reflex's. Synonym: skin reflexes. (05 Mar 2000) |