Accession Number:

AD0425634

Title:

THE EFFECTS OF PSYCHOMOTOR AROUSAL, HEMORRHAGE, AND THE UPRIGHT POSTURE ON THE CIRCULATION OF THE YOUNG CHIMPANZEE,

Descriptive Note:

Corporate Author:

OHIO STATE UNIV COLUMBUS

Report Date:

1963-12-01

Pagination or Media Count:

22.0

Abstract:

Standard techniques of cardiac catherization and the indicator dilutin method for cardiac output were made in the young chimpanzee. Determinations of pressure in the pulmonary and systemic circulation and cardiac output were obtained with the animals at rest in the supine position and during the altered hemodynamic states accompany ing psychomotor arousal, hemorrhage and head-up tilt. All studies were performed without pharmacologic preparation of the animals. Comparison of the circulation of the chimpanzee with that in the human demonstrated a tendency for heart rate, Cardiac output and arterial pressure to be higher while pressures in the pulmonary circulation were in a range similar to that in te human of comparable size and age. These observations demonstrate that the chimpanzee is a convenient laboratory primate for hemodynamic studies in whom circulatory responses can be observed with techniques commonly employed in the human. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE