Which of the following is correct regarding the flow of blood in reference to the left side of the heart? a. Blood flows from the left atrium, through the bicuspid valve, into the left ventricle, through the aortic semilunar valve, and then into the aortic arch b. Blood flows

The only area of the heart that receives innervation from the brain is called the: A. Atrioventricular bundle B. Atrioventricular node C. Sinoatrial node D. Interatrial Fiber

Which of the following statements about the heart is TRUE?   A) The sinoatrial node generates the fastest action potentials in the heart B) The parasympathetic branch of the nervous system decreases heart rate C) The sinoatrial node passes the action potentials to the AV node D) Both B & C E) All of the above

The closure of the mitral valve (bicuspid valve) A) is represented by the P wave on the EKG C) contributes to the first heart sound D) occurs when the tricuspid valve is open

A) The term used to describe one complete heartbeat, or the time for both contraction and relaxation of the heart muscle is the _____________________. B) The term _____?_________ refers to ventricular contraction, while the term ______?________ refers to ventricular relaxation. C) f a patient has a heart rate of 75 beats per minute, then what is the average length of time that each of the following parts of that cycle lasts? (time in secs) -atrial contraction:  ____________________ -atrial relaxation:   ____________________ -ventricular contraction ____________________ -quiescent period:  _____________________ -1 entire cycle: _____________________ D)  When you listen to (auscultate) heart sounds, what you are hearing are the sounds of valves _______?______________. E.) A heart murmur indicates some kind of valve ________?____________.

Select the correct statement regarding the AV node B) it produces the P wave on the EKG C) it is also known as the heart's pacemaker D)it contains autorhythmic cells

Which of the following statements is true about the SA (sinoatrial) node? a. The action potential created by the pacemaker cells of the SA node directly stimulates the contractile cells of both the atria and ventricles. b. The rate of spontaneous depolarization of nodal cells is the fastest in the SA node. c. Pacemaker cells in the SA node form a pathway between the SA and AV nodes. d. The pacemaker cells, which establish the heart rate, are located only in the SA node.

In the aorta, Select one: a. the resistance to blood flow is high, but velocity of blood flow is low. b. the velocity of blood flow is high, but blood pressure is low. c. velocity is diminished because the total cross-sectional area is small. d. the blood pressure and blood velocity are both high. e. the resistance to blood flow and the blood pressure are both low.

For each of the following starting places, name all the veins that a redblood cell would encounter on its way back to the right atrium.a. anterior interventricular groove of the heart (give two ways)b. venous sinus near the brainc. external posterior of skulld. hand (return deep and superficial)e. foot (return deep and superficial)f. stomachg. kidneyh. left inferior wall of the thorax

We are the atrioventricular valves ______ and _______ (select them in alphabetical order)    We are the semilunar valves _______ and _______ (select them in alphabetical order)    We are the receiving chambers of the heart ______ and ______ (select them in alphabetical order)    Word Options for Blanks: (some may not be used, some may be used more than once) aorta aortic valve bicuspid valve coronary sinus inferior vena cava left atrium left ventricle pulmonary arteries pulmonary trunk pulmonary valve pulmonary veins right atrium right ventricle superior vena cava tricuspid valve