See Also: Herbal medicine (botanical medicine, herbology, phytomedicine)(health)
Medicine Lodge Memorial Hospital- Medicine Lodge(health)
AV (atrioventricular)(health)
atrioventricular(medicine)
Atrioventricular (AV)(health)
Orthomolecular medicine (orthomolecular nutritional medicine, orthomolecular therapy)(health)
atrioventricular dissociation(medicine)
atrioventricular connections(medicine)
atrioventricular extrasystole(medicine)
atrioventricular gradient(medicine)

Atrioventricular conduction (medicine) and sap(1) (iou)


Atrioventricular conduction (medicine)


atrioventricular conduction
Forward conduction of the cardiac impulse from atria to ventricles via the A-V node or any bypass tract, represented in the electrocardiogram by the P-R interval. P-H conduction time is from the onset of the P wave to the first high frequency component of the His bundle electrogram (normally 119 ± 38 msec); A-H conduction time is from the onset of the first high frequency component of the atrial electrogram to the first high frequency component of the His bundle electrogram (normally 92 ± 38 msec); P-A conduction time is from the onset of the P wave to the onset of the atrial electrogram (normally 27 ± 18 msec).


sap(1) (iou)



sap noun1. [sap]

The fluid, chiefly water with dissolved sugars and mineral salts, which circulates in the vascular system of a plant and is essential to its growth. OE.
b. transf. Vigour, vitality. E16.
Lytton The sap of youth shrinks from our veins.
c. Moisture in stone. L19.
d. Cytology. The fluid component of a cell or organelle; esp. the contents of a plant cell vacuole. L19.
nuclear sap: see NUCLEAR adjective.
= sapwood below. LME.
Juice or fluid of any kind. Long rare exc. Scot. & north. LME.
fig.: Shakespeare Henry VIII If with the sap of reason you would quench..the fire of passion.
[Abbreviation of saphead, sapskull below.] A simpleton, a fool. colloq. E19.
A club, a bludgeon, (orig. one made from a sapling). US slang. L19.
Comb.: sap-beetle any of various small beetles of the family Nitidulidae which frequent flowers and sap-runs; sap-green noun & adjective (a) noun a green pigment made from buckthorn berries; the colour of this; (b) adjective of the colour of sap-green; saphead colloq. = sense 4 above; sap-headed adjective (colloq.) foolish, stupid; sap lath: made of sapwood; sap-rot a disease of sapwood caused by fungi, esp. Coltricia versicolor; sap-run an increased flow of sap in a sugar maple; sapskull colloq. = sense 4 above; sap spout: through which sap is drawn from a sugar maple; sap-stain bluish discoloration of sapwood, caused esp. by fungi; sapsucker any of various small North and Central American woodpeckers of the genus Sphyrapicus, which drill holes and visit them for sap and insects, esp. (more fully yellow-bellied sapsucker) the N. American S. varius, with a red head, a yellow belly, and otherwise black and white plumage; sapwood the outer wood of a tree, which contains the functioning vascular tissue and is usu. lighter in colour than the heartwood; the alburnum.
sapful adjective containing much sap or moisture L17.