By direct ventricular puncture involving use of a micro-pipette and water manometer the ventricular blood pressures of 81 chick embryos ranging i n age from 2 to 7 days of age were obtained. The mean ventricular diastolic, systolic and mean blood pressures i n millimeter of water (given in the order
Initiation of vagal control of heart rate in the embryonic chick
โ Scribed by Legande, Mary C. ;Paff, George H. ;Boucek, Robert J.
- Publisher
- John Wiley and Sons
- Year
- 1966
- Tongue
- English
- Weight
- 258 KB
- Volume
- 155
- Category
- Article
- ISSN
- 0003-276X
No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
The dependency of fracture on the rate of strain of a range of polyethylene samples was measured in three point flexural tests at 23ยฐC. The range of strain rates from lo-' to reciprocal seconds was examined. The J integrals at the initiation of the cracks were determined. This enabled the interrelat
## Background: Ultrastructural changes of the embryonic heart have been described, and quantitative studies have reported the changes of cellular organelles in late fetal and postnatal development. however, no specific data are available on the quantitative morphology of the individual segments and
## Background: We investigated potential early asymmetries in the distribution of mesenchymal cells within the inferior and superior av cushions in the developing chick heart. ## Methods: Chick embryos stages 16-20 hh were fixed, embedded in polyacrylamide, and the cell nuclei stained with propid