| CORA | conditioned orientation reflex audiometry |
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| CRC | cardiovascular reflex conditioning; clinical research center; colorectal carcinoma; concentrated red... |
| CRCS | cardiovascular reflex conditioning system |
| DRR | digitally reconstructed radiograph; Division of Research Resources [NIH]; dorsal root reflex |
| DTR | deep tendon reflex; dietetic technician registered |
| reflex, babinski | An abnormal reflex consisting of dorsiflexion of the big toe on stimulation of the sole of the foot. (12 Dec 1998) |
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| reflex control | Nerve impulses transmitted to the muscles to maintain normal reflex action. (05 Mar 2000) |
| reflex cough | A cough excited reflexly by irritation in some distant part, as the ear or the stomach. (05 Mar 2000) |
| reflex detrusor contraction | Normal coordinated function of the bladder with sustained contractions of the bladder matched by simultaneous relaxation of the sphincteric outlet mechanisms to empty the bladder. (05 Mar 2000) |
| reflex dyspepsia | Functional dyspepsia excited by reflex irritation from disease elsewhere than in the stomach or intestines. (05 Mar 2000) |
| reflex epilepsy | Seizures which are induced by peripheral stimulation; e.g., audiogenic, laryngeal, photogenic, or other stimulation. Synonym: sensory precipitated epilepsy. (05 Mar 2000) |
| reflex headache | A headache secondary to another organic condition. Synonym: reflex headache. (05 Mar 2000) |
| reflex incontinence | In neurogenic disorders, loss of urine due to detrusor hyperreflexia and/or involuntary urethral relaxation in the absence of the desire to void. (05 Mar 2000) |
| reflex inhibition | A situation in which sensory stimuli decrease reflex activity. (05 Mar 2000) |
| reflex iridoplegia | Absence of the pupillary light reflex, as in the Argyll Robertson pupil. (05 Mar 2000) |
| reflex, let down | The let down reflex of the mother is an involuntary reflex during breastfeeding which causes the milk to flow freely. (12 Dec 1998) |
| reflex ligament | <anatomy> A triangular fibrous band extending from the aponeurosis of the external oblique to the pubic tubercle of the opposite side. See: aponeurosis of external abdominal oblique muscle. Synonym: ligamentum reflexum, Colles' ligament, fascia triangularis abdominis, reflex ligament, triangular fascia. (05 Mar 2000) |
| reflex movement | An involuntary movement resulting from a sensory stimulus. (05 Mar 2000) |
| reflex neurogenic bladder | An abnormal condition of bladder function whereby the bladder is cut off from upper motor neuron control, but where the lower motor neuron arc is still intact. (05 Mar 2000) |
| reflex, oculocardiac | Change of heartbeat induced by pressure on the eyeball, manipulation of extraocular muscles, or pressure upon the tissue remaining in the orbital apex after enucleation. (12 Dec 1998) |