We're unable to sign you in at this time. Please try again in a few minutes.
We were able to sign you in, but your subscription(s) could not be found. Please try again in a few minutes.
There may be a problem with your account. Please contact the AMA Service Center to resolve this issue.
Contact the AMA Service Center:
Telephone: 1 (800) 262-2350 or 1 (312) 670-7827  *   Email: subscriptions@jamanetwork.com
Error Message ......

A New Preparation for Study of the Completely Isolated Mammalian Heart and Lungs

AMA Arch Surg. 1960;80(5):822-829. doi:10.1001/archsurg.1960.01290220114013.
Text Size: A A A
Published online


Much of the basic experimental work which made the recent advances in the treatment of heart disease possible was done on one or another of the various preparations for isolating the heart and lungs. The study of any individual organ is facilitated by its isolation from the other organs in the body. In the investigation of the heart, it was found that the mammalian heart did not lend itself to isolation as did the heart of the frog and the turtle.

The problem of getting the isolated mammalian heart to perform work pumping blood and not just to beat has intrigued many prominent physiologists. Although the heart continues to beat as long as its coronary arteries are perfused, its energetics, metabolism, and other vital functions cannot be evaluated unless it is performing work. The qualitative and quantitative analysis of undiluted coronary blood is difficult because the collection of such blood


Sign in

Purchase Options

• Buy this article
• Subscribe to the journal
• Rent this article ?

First Page Preview

View Large
First page PDF preview





Also Meets CME requirements for:
Browse CME for all U.S. States
Accreditation Information
The American Medical Association is accredited by the Accreditation Council for Continuing Medical Education to provide continuing medical education for physicians. The AMA designates this journal-based CME activity for a maximum of 1 AMA PRA Category 1 CreditTM per course. Physicians should claim only the credit commensurate with the extent of their participation in the activity. Physicians who complete the CME course and score at least 80% correct on the quiz are eligible for AMA PRA Category 1 CreditTM.
Note: You must get at least of the answers correct to pass this quiz.
Please click the checkbox indicating that you have read the full article in order to submit your answers.
Your answers have been saved for later.
You have not filled in all the answers to complete this quiz
The following questions were not answered:
Sorry, you have unsuccessfully completed this CME quiz with a score of
The following questions were not answered correctly:
Commitment to Change (optional):
Indicate what change(s) you will implement in your practice, if any, based on this CME course.
Your quiz results:
The filled radio buttons indicate your responses. The preferred responses are highlighted
For CME Course: A Proposed Model for Initial Assessment and Management of Acute Heart Failure Syndromes
Indicate what changes(s) you will implement in your practice, if any, based on this CME course.


Some tools below are only available to our subscribers or users with an online account.

0 Citations

Sign in

Purchase Options

• Buy this article
• Subscribe to the journal
• Rent this article ?

Related Content

Customize your page view by dragging & repositioning the boxes below.