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What happens when contractions of the ventricles in the heart that forces blood into the blood vessels?
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What happens in the heart during Systole?
During systole the thick muscular walls of the ventricles contract. This happens to both sides of the heart at about the same time.The contraction of the ventricular muscle raises the pressure in the ventricle. The high pressure in the ventricle forces the bicuspid valve to close and forces blood up the aorta.
When blood flows through the heart what forces pushes the blood out of the heart and into the arteries?
The atria Actually, it is the contractions (squeezing) of the ventricles (the lower parts of the heart), not the atria (the upper parts), that do the pumping. That's why the lower part of the heart is larger, and the muscular walls are thicker. The atria receive the blood from the body and pump it down into the ventricles.
What two heart chambers contract last in a normal cardiac cycle?
FIRST: Atrial contractions: - Right atrium forces the blood into the Right ventricle (through the tricuspid valve) - Left atrium forces the blood into the Left ventricle (through the the Mitral (or Bicuspid valve) FOLLOWED BY: Ventrical conctractions: - Right ventricle forces the blood into the Pulmonary trunk (through the Pulmonary semilunar valve) - Left ventricle forces the blood into the Aorta (through the Aortic semilunar valve). Contractions in both atrium happen simultaniously, just like contractions in both ventricles. More info can be found on http://en.wikipedia.org/wiki/Heart
What term is defined as the contractions that forces sperm from the body?
Ejaculation-Dildo-
What is a chamber of the heart that receives blood from the veins and forces it into a ventricle?
An atrium. There is a left atrium and a right, just like the ventricles.
Does lymph have a pump like a heart?
No the lymphatic system did not have any pump like blood circulation systme. The lymph is moved along the lymphatic vessel network by either intrinsic contractions of the lymphatic vessels or by extrinsic compression of the lymphatic vessels via external tissue forces.
What happens to an object that is acted upon by a unbalanced forces?
the forces move
Five factors that increase blood pressure during resistance training?
Valsalva maneuver Intra-abdominal pressure Compressive forces from muscle contractions Elevated cardiac output External compressive forces
Describe source of lymph and mechanism of lymph transport?
Lymph: fluid within lymphatic vessels 1. Made of water & dissolved substances (that had left blood capillaries by filtration and diffusion) 2.Includes small, dissolved proteins that had also leaked from capillaries Forces that propel lymph through lymphatic vessels: - skeletal muscle contractions - breathing movements - contraction of smooth muscle in walls of lymphatic trunks (movement similar to venous movement)
How the ejaculatory fluidscome out?
Short answer is that the bulbospongious muscle at the base of the penis forces ejaculate out through rhythmic contractions. Ejaculation is usually the last part of sexual stimulation, and happens under the control of the sympathetic nervous system. It is followed by a refractory period, in which further stimulation is nearly impossible.
What is the muscle when the heart forces blood?
The ventricles are the lower heart chambers that contract to pump blood. The upper chambers, atria, also contract, but to a lesser degree.
What happens when you have two opposing forces?
Nothing
