Blood pressure depends on: Group of answer choices the height and weight of an individual. atrial volume and stroke rate. blood flow and resistance of blood against the vessel walls. total blood volume. heart rate.

Blood doping has benefits for performance, but it has some consequences on the heart, short term and long term. Learning that blood doping adds red blood cells to the blood, what variable in the blood does this change and how does that affect blood flow? viscosity; increase blood flow resistance; decrease blood flow viscosity; decrease blood flow O resistance; increase blood flow

In this diagram, which one of the following structures is the most important structure in transferring the electrical impulses from the atria into the ventricles of the heart? Sinoatrial node Atrioventricular node Bundle of His Purkinje fibres teachmeanatomy The #1 Applied Human Anatomy Site on the Web.

Which of the following would increase blood pressure? Group of answer choices Increased parasympathetic activity Decreased heart rate Vasodilation of blood vessels Increasing resistance in blood vessels

Regulation of the heart ( or any organ or tissue ) by neural input , circulating hormones , or any other factor originating from outside the organ is referred to as control . neurogenic myogenic Ointrinsic extrinsic voluntary

What keeps the atrioventricular (AV) valves from being pushed open as the ventricles contract? Pressure of blood pushing against the valves. Contraction of the atria. Closure of the semilunar valves. Contraction of papillary muscles and tightening of chordae tendineae.