Answer: Q2) Mechanical stretching of the cervix enhances uterine activity. This phenomenon has been referred to as a) Babinskis reflex b) Chaddocks reflex c) Bezold-Jarisch reflex d) Ferguson reflex e) Hoffmanns reflex Correct Answer: d) Ferguson reflex. Manipulation of the cervix and stripping the fetal membranes is associated with the increase in the levels of prostaglandin F2 alpha metabolite in blood. a) Babinskis reflex - dorsiflexion of the big toe on stimulation of the sole, occurring in lesions of the pyramidal tract. b) Chaddocks reflex - n lesions of the pyramidal tract, stimulation below the external malleolus causes extension of the great toe. c) Bezold-Jarisch reflex - reflex bradycardia and hypotension resulting from stimulation of cardiac chemoreceptors by antihypertensive alkaloids and similar substances. e) Hoffmanns reflex - increased mechanical irritability of the sensory nerves in tetany; the ulnar nerve is usually tested.
Posted on: Sat, 11 Oct 2014 03:16:02 +0000
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