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Enlargement of the uterus during pregnancy is directly stimulated by?
Estrogen
What receptors are stimulated during urination?
Nerve receptors are stimulated during urination. This stimulation occurs when the walls of the bladder contract and the urination reflex is automatically activated.
Which is the phase of cardiac cycle in which the auricles contract?
The auricles will contract during the systolic phase of the cardiac cycle. This is one of the numbers that is measured when a patient has their blood pressure taken.
How does the heart contract or relax?
The heart contracts and relaxes during a cardiac cycle.
What does the relative refractory period of a t wave represent?
The relative refractory period of the T wave in the cardiac cycle represents a phase during which the heart muscle is partially repolarized and can be stimulated to contract again, but only by a stronger-than-normal stimulus. This period follows the absolute refractory period, where the heart cannot be stimulated regardless of the strength of the stimulus. The relative refractory period is crucial for maintaining the heart's rhythm and preventing arrhythmias, as it indicates the time during which the cardiac cells are recovering but not fully ready for another action potential.
Which is the phase of cardiac cycle in whitch the auricles contract?
The phase of the cardiac cycle in which the atria contract is called atrial systole. This occurs during the P wave on an ECG and helps to push blood from the atria into the ventricles.
During CPR the heart and what are stimulated?
During CPR the heart and lungs are stimulated.
How are diaphragm and intercostal muscles stimulated?
The diaphragm is stimulated the same way all other muscles are - nerve impulses that originate in the brain (or sometimes the spinal cord). The intercostal muscles expand during inhalation and contract during exhalation in response to the movement of the lungs by the diaphragm.
During CPR the and are stimulate?
During CPR the lungs and heart are stimulated.
What are the three distinct stages of Cardiac Cycle?
The three distinct stages of the Cardiac Cycle are diastole, isovolumetric contraction, and systole. During diastole, the heart relaxes and fills with blood. In isovolumetric contraction, the ventricles start to contract but there is no change in volume. Systole is when the ventricles fully contract to pump blood out of the heart.
Where do cardiac muscle fibers remain between cardiac cycles with no detectable electrical changes?
During this period, cardiac muscle fibers are in a resting state called diastole. They remain relaxed and do not contract, allowing the heart chambers to fill with blood. This phase is vital for the heart to rest and prepare for the next contraction during systole.
What stimulated the rapid discovery of new elements during the 1700?
What stimulated the rapid discovery
