Blood flow and pressure in the giraffe carotid artery
1. Carotid artery blood pressure and blood flow were measured and telemetered from wild giraffes ranging freely on the African plains. 2. The blood pressure ranged between 260/160 mm Hg when the animal was lying flat, and 120/75 mm Hg when it was standing upright; dp/dt at the onset of systole was 1500 mm/sec. 3. […]