Objective: To study pressure-flow behaviour of in vitro placentas under normal simulated conditions and during raised external pressures, to simulate in vivo placental hemodynamic function, and as a model for polyhydramnios and the supine hypotension syndrome.
The male moths Trichoplusia ni and Lymantria dispar showed a widened time window for receptability of female-produced pheromones during raised levels of serotonin (Linn and Roelofs 1986; Linn et al. 1992).
26 27 The mechanisms of the headache of cerebral oedema are unclear but may relate to the acute distension of the afferent innervated blood vessels and meninges at the base of the brain during raised intracranial pressure.
The theoretical basis for physical therapy to treat SUI is to improve PFM function by increasing strength, coordination, speed and endurance [ 10] in order to maintain an elevated position of bladder neck during raised intra-abdominal pressure with adequate urethral closure force [ 11].
Therefore, the increase in ONSD during raised ICP cannot be related only to optic nerve dilatation (as during optic nerve oedema) but also, and predominantly, to its optic nerve sheath distension, probably caused by increased CSF pressure around the optic nerve.
