ArtsAutosBooksBusinessEducationEntertainmentFamilyFashionFoodGamesGenderHealthHolidaysHomeHubPagesPersonal FinancePetsPoliticsReligionSportsTechnologyTravel

Multiple Choice Questions on the Heart - Cardiac Output

Updated on September 15, 2015

Heart - Systole

Source

Introduction-Heart and Cardiac Output

Heart is a muscular organ which beats throughout your life without your knowledge. It is about the size of your fist located within the chest cavity. Heart receives deoxygenated blood from different parts of the body through inferior and superior vena cava and pumps it to lungs for purification through pulmonary trunk. The purified blood returns to the heart through pulmonary veins and it is again pumped to different parts of the body through aorta. A cardiac cycle consists of alternating periods of systole and diastole.

The volume of blood ejected with each heart beat is:

Stroke volume

Cardiac output

End diastolic volume

End systolic volume

--------------------------------------

Answer: Stroke volume

Difference between the end diastolic and end systolic volume is:

Stroke volume

Cardiac output

------------------------------------

Answer: Stroke volume

Did you know?

  • End diastolic volume is an important determinant of cardiac function

  • Increased sympathetic activity directly enhances the pacemaker tissue activity, increases heart muscle contractility and results in venous constriction.

  • Sympathetic stimulation and epinephrine increase the concentration of intracellular Ca2+ thereby increasing the cardiac contractility and stroke volume

The sum of all the stroke volumes ejected from the heart over a one minute period is:

Cardiac output

End diastolic volume

End systolic volume

----------------------------------------

Answer: Cardiac output

Which equation best describes Cardiac Output?

Cardiac output= heart rate X stroke volume

Cardiac output= heart rate + stroke volume

Cardiac output= heart rate - stroke volume

Cardiac output= heart rate X end diastolic volume

--------------------------------------------------------------------

Answer: Cardiac output= heart rate X stroke volume

The amount of blood in the ventricles at the end of diastolic filling is known as:

Cardiac output

End diastolic volume

End systolic volume

-------------------------------------

Answer: End diastolic volume

Which branch of the autonomic nervous system increases the heart rate, stroke volume and venous return to the heart?

Sympathetic activity

Parasympathetic activity

-----------------------------------

Answer: Sympathetic activity

Heart - Diastole

Source

What component of cardiac output is affected by an increase in intracellular Ca2+ ?

Stroke volume

Heart rate

--------------------------------

Answer: Stroke volume

The period of cardiac cycle during which the ventricles are filled with blood is:

Systole

Diastole

-------------------

Answer: Diastole

The difference between a person’s maximum cardiac output and resting cardiac output is called the:

Cardiac reserve

Ejection Fraction

Preload

Afterload

----------------------------

Answer: Cardiac reserve

The magnitude of the maximal (end-diastolic) ventricular volume or the end-diastolic pressure stretching the ventricles is:

Cardiac reserve

Ejection Fraction

Preload

Afterload

-----------------------------------

Answer: Preload

The pressure against which the ventricle ejects blood is:

Cardiac reserve

Ejection Fraction

Preload

Afterload

--------------------------------------

Answer: Afterload

Human Pumping Heart

Source

Stroke volume divided by the end-diastolic volume is:

Cardiac reserve

Ejection Fraction

Preload

Afterload

-----------------------------------

Answer: Ejection Fraction

Normal range of ejection fraction is:

45 ± 8 per cent

65 ± 8 per cent

85 ± 8 per cent

105 ± 8 per cent

-----------------------------------------

Answer: 65 ± 8 per cent

Comments

    0 of 8192 characters used
    Post Comment

    • profile image

      Tewodros Alene UOG,ETHIOPIA 

      3 months ago

      thanks for all !!!

    • thumbi7 profile imageAUTHOR

      JR Krishna 

      5 years ago from India

      Hi manatita44

      Thanks for the visit

    • manatita44 profile image

      manatita44 

      5 years ago from london

      Lot of effort here. I had forgotton a lot

    working

    This website uses cookies

    As a user in the EEA, your approval is needed on a few things. To provide a better website experience, hubpages.com uses cookies (and other similar technologies) and may collect, process, and share personal data. Please choose which areas of our service you consent to our doing so.

    For more information on managing or withdrawing consents and how we handle data, visit our Privacy Policy at: https://hubpages.com/privacy-policy#gdpr

    Show Details
    Necessary
    HubPages Device IDThis is used to identify particular browsers or devices when the access the service, and is used for security reasons.
    LoginThis is necessary to sign in to the HubPages Service.
    Google RecaptchaThis is used to prevent bots and spam. (Privacy Policy)
    AkismetThis is used to detect comment spam. (Privacy Policy)
    HubPages Google AnalyticsThis is used to provide data on traffic to our website, all personally identifyable data is anonymized. (Privacy Policy)
    HubPages Traffic PixelThis is used to collect data on traffic to articles and other pages on our site. Unless you are signed in to a HubPages account, all personally identifiable information is anonymized.
    Amazon Web ServicesThis is a cloud services platform that we used to host our service. (Privacy Policy)
    CloudflareThis is a cloud CDN service that we use to efficiently deliver files required for our service to operate such as javascript, cascading style sheets, images, and videos. (Privacy Policy)
    Google Hosted LibrariesJavascript software libraries such as jQuery are loaded at endpoints on the googleapis.com or gstatic.com domains, for performance and efficiency reasons. (Privacy Policy)
    Features
    Google Custom SearchThis is feature allows you to search the site. (Privacy Policy)
    Google MapsSome articles have Google Maps embedded in them. (Privacy Policy)
    Google ChartsThis is used to display charts and graphs on articles and the author center. (Privacy Policy)
    Google AdSense Host APIThis service allows you to sign up for or associate a Google AdSense account with HubPages, so that you can earn money from ads on your articles. No data is shared unless you engage with this feature. (Privacy Policy)
    Google YouTubeSome articles have YouTube videos embedded in them. (Privacy Policy)
    VimeoSome articles have Vimeo videos embedded in them. (Privacy Policy)
    PaypalThis is used for a registered author who enrolls in the HubPages Earnings program and requests to be paid via PayPal. No data is shared with Paypal unless you engage with this feature. (Privacy Policy)
    Facebook LoginYou can use this to streamline signing up for, or signing in to your Hubpages account. No data is shared with Facebook unless you engage with this feature. (Privacy Policy)
    MavenThis supports the Maven widget and search functionality. (Privacy Policy)
    Marketing
    Google AdSenseThis is an ad network. (Privacy Policy)
    Google DoubleClickGoogle provides ad serving technology and runs an ad network. (Privacy Policy)
    Index ExchangeThis is an ad network. (Privacy Policy)
    SovrnThis is an ad network. (Privacy Policy)
    Facebook AdsThis is an ad network. (Privacy Policy)
    Amazon Unified Ad MarketplaceThis is an ad network. (Privacy Policy)
    AppNexusThis is an ad network. (Privacy Policy)
    OpenxThis is an ad network. (Privacy Policy)
    Rubicon ProjectThis is an ad network. (Privacy Policy)
    TripleLiftThis is an ad network. (Privacy Policy)
    Say MediaWe partner with Say Media to deliver ad campaigns on our sites. (Privacy Policy)
    Remarketing PixelsWe may use remarketing pixels from advertising networks such as Google AdWords, Bing Ads, and Facebook in order to advertise the HubPages Service to people that have visited our sites.
    Conversion Tracking PixelsWe may use conversion tracking pixels from advertising networks such as Google AdWords, Bing Ads, and Facebook in order to identify when an advertisement has successfully resulted in the desired action, such as signing up for the HubPages Service or publishing an article on the HubPages Service.
    Statistics
    Author Google AnalyticsThis is used to provide traffic data and reports to the authors of articles on the HubPages Service. (Privacy Policy)
    ComscoreComScore is a media measurement and analytics company providing marketing data and analytics to enterprises, media and advertising agencies, and publishers. Non-consent will result in ComScore only processing obfuscated personal data. (Privacy Policy)
    Amazon Tracking PixelSome articles display amazon products as part of the Amazon Affiliate program, this pixel provides traffic statistics for those products (Privacy Policy)