Save
Busy. Please wait.
Log in with Clever
or

show password
Forgot Password?

Don't have an account?  Sign up 
Sign up using Clever
or

Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
Your email address is only used to allow you to reset your password. See our Privacy Policy and Terms of Service.


Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't Know
Remaining cards (0)
Know
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Week 10

Heart and Blood

QuestionAnswer
Inhibition of sympathetic vasoconstrictor impulses is considered a major mechanism of vasodilation
Which two factors promote the return of venous blood to the heart? blood-pumping action of respirations and skeletal muscle contractions
The difference between systolic pressure and diastolic pressure is called pulse pressure
_____, a natural constituent of blood, acts as an antithrombin and prevents clots from forming in vessels. Heparin
A glycoprotein hormone that is secreted to increase oxygen concentration in the tissues is erythropoietin cardiac output is determined by stroke volume and heart rate
_____ is used to determine the volume percentage of red blood cells in whole blood. Hematocrit
All of the following are true statements except: both atria receive their blood supply from branches of the right and left coronary arteries.
The term used to describe the collection of mechanisms that influence the circulation of blood is: Hemodynamics.
Which of the following is not true of ventricles? They are the pumping chambers of the heart, The myocardium of the ventricles is thicker than that of the atria, and The myocardium of the left ventricle is thicker than that of the right ventricle.
In the extrinsic pathway of stage 1 of the clotting mechanism, chemicals released from damaged tissues trigger the cascade of events that ultimately result in the formation of prothrombin activator.
Which of the following is(are) involved in determining a person’s total blood volume? Age, body type, and sex
The mechanisms of which three hormones work together to regulate blood volume? aldosterone, ANH, and ADH
Erythrocytes begin their maturation sequence in red bone marrow from nucleated cells known as: hematopoietic stem cells.
Neutrophils are highly mobile and phagocytic. They migrate out of blood vessels and into tissue spaces. This process is called Diapedesis
Blood viscosity stems mainly from the red blood cells but also partly from the _____ in blood. protein molecules present
Blood pressure is measured with the aid of an apparatus known as a(n) Sphygmomanometer.
The physiological mechanism that dissolves clots is known as Fibrinolysis.
Which are the two baroreceptors that are located near the heart? aortic baroreceptors and carotid baroreceptors
Starling’s law of the heart states that, within limits, the longer, or more stretched, the heart fibers are at the beginning of the contraction, the stronger the contraction
The localized pressure gradient needed to maintain blood flow in a tissue is called perfusion pressure.
The heart begins beating in the fetus at about what stage of development? After about 4 weeks
Blood volume per kilogram of body weight varies inversely with: body fat
A hematocrit of 56% would be an indication of: Polycythemia
Factors that affect the strength of myocardial contraction are called inotropic factors
The vagus is said to act as a “brake” on the heart. This situation is called vagal inhibition
What is the functional significance of large areas of cardiac muscle being electrically coupled to form a single functional syncytium? Because they form a syncytium, muscle cells can pass an action potential along a large area of the heart wall, stimulating contraction in each muscle fiber of the syncytium.
All of the following are components critical to coagulation except none of the above; all of these components are critical to coagulation
A decrease in the amount of white blood cells is called Leukopenia
The term blood type refers to the type of blood cell Antigen
Created by: Sandoval.Sam
Popular Physiology sets

 

 



Voices

Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
"Know" box contains:
Time elapsed:
Retries:
restart all cards