| PTR | patellar tendon reflex; patient termination record; patient to return; peripheral total resistance; ... |
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| QSART | quantitative sudomotor axon reflex testing |
| RAS | rapid atrial stimulation; recurrent aphthous stomatitis; reflex activating stimulus; reliability, av... |
| ref | reference; reflex |
| refl | reflex |
| wink reflex | General term for reflex closure of eyelids caused by any stimulus. Synonym: eye-closure reflex. (05 Mar 2000) |
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| withdrawal reflex | Flexion of ankle, knee, and hip when the foot is painfully stimulated; the crossed extension reflex occurs in association with it. Synonym: defense reflex, nociceptive reflex, withdrawal reflex. (05 Mar 2000) |
| conditioned reflex | A reflex that is gradually developed by training and association through the frequent repetition of a definite stimulus. See: conditioning. Synonym: acquired reflex, behaviour reflex, trained reflex. (05 Mar 2000) |
| conjunctival reflex | Closure of the eyes in response to irritation of the conjunctiva. (05 Mar 2000) |
| wrist clonus reflex | Sudden extension of the wrist induces a sustained clonic movement. (05 Mar 2000) |
| consensual light reflex | Contraction of the pupil of the fellow eye in consensus with the pupil of the illuminated eye. Synonym: consensual light reflex, indirect pupillary reaction. (05 Mar 2000) |
| pneocardiac reflex | A modification in the blood pressure or heart rhythm caused by the inhalation of an irritating vapor. (05 Mar 2000) |
| pneopneic reflex | A modification of the respiratory rhythm caused by the inhalation of an irritating vapor. (05 Mar 2000) |
| muscular reflex | Tonic contraction of the muscles in response to a stretching force, due to stimulation of muscle proprioceptors. Synonym: Liddell-Sherrington reflex, muscular reflex, stretch reflex. (05 Mar 2000) |
| contralateral reflex | <clinical sign> A physical examination finding that can indicate inflammation of the meninges (meningitis), performed in two forms: passive flexion of one leg results in a similar movement on the opposite side or if the neck is passively flexed, flexion occurs in the legs. (27 Sep 1997) |
| convulsive reflex | An incoordinated reflex in which muscles, even those opposing one another as in strychnine poisoning, contract. (05 Mar 2000) |
| coordinated reflex | A reflex in which several muscles take part in the performance of a purposeful act. (05 Mar 2000) |
| corneal reflex | A contraction of the eyelids when the cornea is lightly touched with a camel-hair pencil. Synonym: lid reflex. Reflection of light from the surface of the cornea. (05 Mar 2000) |
| costal arch reflex | Contraction of the rectus abdominis muscle by tapping the costal margin inside the mammary line. (05 Mar 2000) |
| myenteric reflex | Contraction above and relaxation below a stimulated point in the intestine. Synonym: law of intestine. (05 Mar 2000) |