The Heart
The heart is located in this cavity.
What is the mediastinum?
The term for the pressure against the wall of the arteries during the ventricular contraction phase of the heart.
What is the systolic blood pressure
This vessel returns blood to the heart from the head, neck, and upper limbs:
What is the superior vena cava
This is known as the pacemaker of the heart ____
What is the sinoatrial node
The right atrium receives what type of blood?
What is deoxygenated blood
Blood from the left atrium enters the left ventricle through the:
What is the bicuspid valve/ mitral valve?
Rapid signaling from the Sinoatrial node results in this abnormal heart rate.
What is tachycardia
What is the time delay between the SA node and the AV node?
What is 0.1 seconds
The left side of the heart carries blood to this circuit.
What is the systemic circuit?
The T wave in an ECG indicates
Ventricular repolarization
This is a double sac membrane that encompasses the heart and anchors it to the cavity?
What is pericardium?
Blood flows from the right ventricle though this valve.
What is the pulmonary semilunar valve.
Signals from this division of the autonomic nervous system impacts both variables for cardiac output.
What is Sympathetic Nervous System?
This direction of blood forces the semilunar valves to close and remain shut.
What is backflow?
This major artery supplies oxygen and nutrients to the external myocardium.
What is the coronary artery?
An insufficient oxygen level in tissues and cells of the body results in this.
What is hypoxia?
A person with a heart rate of 75 and SV of 70 will have a cardiac out of ____________ml/min
What is 5250 ml/min
These nerve fibers innervate the papillary muscles.
What is Purkinje fibers?
Failure of the AV valves results in this heart sound?
What is a murmer?
Name the device that measures blood pressure?
What is a sphygmomanometer?
This stage of the cardiac cycle when all 4 valves are closed, and all 4 chambers are relaxed.
What is isovolumetric relaxation?
The first branch extending off of the aorta.
What is the brachiocephalic artery?
This law explains that the increased volume of blood within the ventricles during diastole will cause an increase in the intensity of the stretches within the ventricular wall resulting in a more forceful ventricular contraction.
What is the Frank-Starling Law
This is the amount of blood pumped out of each ventricle during each beat:
What is stroke volume