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How breathing depends on muscular contraction relaxation and changes in lung pressure?
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Name two events occuring within the body that aid in venous return?
1. Respiratory "Pump". Pressure changes that occur in the thorax during breathing. 2. Muscular "Pump". Contraction and Relaxation of skeletal muscles surrounding the veins.
Is systolic pressure where the ventricls are relaxing?
Relaxation = Diastole Contraction of the atria=Atrial systole Contraction of the ventricles = Ventricular systole
What aids lymph flow?
muscular activitybreathing muscle contraction peristalsis
When you take someone's blood pressure you are measuring the pressure during the contraction and relaxation phases of the heart muscle?
true
Why artery called resistance vessels?
The contraction and relaxation of the smooth muscle in their walls can change their diameter, thus changing the level of pressure (large diameter yields low pressure and smaller diameter yields high pressure).
When is the Blood pressure greatest in the arteries?
Blood pressure in the arteries is greatest during systole. Systole is the period of heart contraction, while diastole is the period of heart relaxation.
What part of blood pressure denotes the force exerted on the arterial walls during cardiac contraction?
The force exerted on the arterial walls during cardiac contraction is systolic blood pressure. In contrast, diastolic blood pressure is the force exerted during cardiac relaxation.
What happens to the volume of blood in the ventricle during the period of isovolumetric contraction?
Both ventricular contraction and atrial diastole take place.
What research has been done on yoga?
The Relaxation Response, by Harvard cardiologist Herbert Benson, showed that meditation and breathing techniques for relaxation could have the opposite effect of stress, reducing blood pressure and other indicators.
What are two factors that help move blood through veins back to the heart?
Really, I know just a factor which is that the veins have a valve which helps to push the blood. This is because the vein has a thin muscular wall and low pressure. Therefore,the valve is there to prevent the flow back of blood.
What is coastal breathing?
costa is just the fancy term given for ribs. Intercostal muscles are located between the ribs and contract to allow your lungs to suck in air and expand. Costal breathing (shallow breathing) occurs when negative intrapulmonary pressure(normally majorly achieved by diaphragmatic contraction / flattening) is achieved by contraction of the external intercostalis muscle.
The hindbrain includes the?
basic life functions and muscular coordination.
