The pituitary gland, I believe, but don't quote me on this.
Answer:
Heart valves or the closure of the mitral and tricuspid atrioventricular (AV) valves at the beginning of ventricular systole and the closure of the aortic valve and pulmonary valve at the end of ventricular systole.
Explanation:
The heart tone “lub,” or S1, is caused by the closure of the mitral and tricuspid atrioventricular (AV) valves at the beginning of ventricular systole.
The heart tone “dub,” or S2 ( a combination of A2 and P2), is caused by the closure of the aortic valve and pulmonary valve at the end of ventricular systole.
Answer:
Cardiac Temponade
Explanation:
Cardiac temponade is the condition where the fluid fills the pericardial space and it reduces the filling of ventricles causing issues with contraction and destabilize the blood flow. The condition can get very serious and can cause shock and even death.
Plant, dog, person, and horse.
Answer:
No, vascular plants are not multicellular.
Explanation:
