10 Jun The primary pacemaker of the heart is the atrioventricular
he primary pacemaker of the heart is:the atrioventricular (AV) node.
the bundle of His.
the sinoatrial (SA) node.
Bachmann’s bundle.
2) The coronary arteries originate in the:right atrium.
pulmonary artery.
coronary ostia of the aorta.
superior vena cava.
3) Which statement describes depolarization?When cardiac cells are unable to contract
When ions cross cell membranes to cause the cell to contract
When cardiac cells are returning to their resting state
When cardiac cells are fully at rest
4) The area of the heart just above the diaphragm is called the:inferior wall.
base.
posterior wall.
anterior wall.
5) Identifying the location and etiology of cardiac abnormalities:can never be done if only the electrocardiograph (ECG) is used.
is critical to determine the appropriate treatment and predict possible complications.
can always be done using only the ECG.
isn’t necessary to make appropriate treatment decisions.
6) Which are the two phases of the cardiac cycle?Diastole and systole
Impulse transmission and resting potential
Depolarization and repolarization
Automaticity and conductivity
7) Which statement best describes cardiac cells at rest?Cardiac cells at rest are considered polarized, meaning that no electrical activity takes place.
Cardiac cells at rest have positive electrical charges in the cell and negative charges outside.
Cardiac cells at rest exhibit an action potential which is when the transmission of electrical impulses take place.
Cardiac cells at rest are electrically charged in preparation for contraction.
8) Cardiac cells have the ability to generate an electrical impulse which is called:automaticity.
conductivity.
contractility.
vasodilation.
9) The coronary artery that supplies the anterior and ventricular septal walls of the heart is the:left anterior descending artery.
posterior descending artery.
right coronary artery.
left circumflex artery.
10) Which cardiac layer is the thick muscular layer?Pericardium
Myocardium
Epicardium
Endocardium
Our website has a team of professional writers who can help you write any of your homework. They will write your papers from scratch. We also have a team of editors just to make sure all papers are of HIGH QUALITY & PLAGIARISM FREE. To make an Order you only need to click Ask A Question and we will direct you to our Order Page at WriteDemy. Then fill Our Order Form with all your assignment instructions. Select your deadline and pay for your paper. You will get it few hours before your set deadline.
Fill in all the assignment paper details that are required in the order form with the standard information being the page count, deadline, academic level and type of paper. It is advisable to have this information at hand so that you can quickly fill in the necessary information needed in the form for the essay writer to be immediately assigned to your writing project. Make payment for the custom essay order to enable us to assign a suitable writer to your order. Payments are made through Paypal on a secured billing page. Finally, sit back and relax.
About Writedemy
We are a professional paper writing website. If you have searched a question and bumped into our website just know you are in the right place to get help in your coursework. We offer HIGH QUALITY & PLAGIARISM FREE Papers.
How It Works
To make an Order you only need to click on “Order Now” and we will direct you to our Order Page. Fill Our Order Form with all your assignment instructions. Select your deadline and pay for your paper. You will get it few hours before your set deadline.
Are there Discounts?
All new clients are eligible for 20% off in their first Order. Our payment method is safe and secure.