The thick layer of the heart wall that contains contractile cardiac muscle tissue is the?
What of the heart are the chambers that located superiorly and are the receiving chambers of the heart?
The left atrium
What receives blood directly from the four pulmonary veins?
Which blood vessels are NOT part of the systemic circulation?
The tricuspid valve is located between the right artrium and what ventricle?
The superior vena cava empties deoxygenated blood from the right what?
Which blood vessel carries oxygenated blood from the lungs?
What semilunar valve is composed of three cusps and opens when the left ventricle contracts?
The crescent-shaped pacemaker of the heart is the what?
What is the vessel that receives blood during right ventricle contracts?
The mitral valve is normally closed when what is contracting?
the aorta and pulmonary trunk
Into which of the following vessels does blood enter during ventricular contraction are?
The volume of blood pumped out by each ventricle with each beat of the heart is called the what?
arteries, arterioles, capillary beds, venules, veins
The path of blood flow within the systemic vascular system is?
inferior vena cava
The right and left renal veins empty into the what?
which is NOT a pressure point?
Which blood vessels is blood pressure highest?
A rapid uncoordinated shuddering of the heart is called?
Varicose veins are caused by incompetent what?
The carotid artery is located in the what?
Cardiac muscle is enclosed by a double sac of serous membrane known as what?
The what carry deoxygenated blood to the lungs?
The aorta is the largest artery within the what?
away from the heart
Arteries always carry blood where?
What of the heat under normal circumstances is called the sinoatrial node?
Systole means contraction of the what?
The average size of the human heart is the size of a what?
The sac surrounding the heart is called the what?
T or F: Veins always carry deoxygenated blood.
An increase in blood vessel diameter causes arterial blood pressure to what?
T or F: Diastolic blood pressure is the pressure in the arteries at the peak of ventricular contraction.
Heart chamber with the thickest wall.
Inferior discharging on the left side of the heart
Heart chamber that pumps blood to the pulmonary trunk
Heart chamber that contains the sinoatrial node
Roof of this chamber contains the bicuspid valve
common carotid (arteries)
anterior tibial (arteries)