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ERIC Number: EJ1112073
Record Type: Journal
Publication Date: 2016-Mar
Pages: 4
Abstractor: As Provided
ISSN: ISSN-1449-6313
Structural Adaptation
Crowley, Julianne; Titmus, Morgan
Teaching Science, v62 n1 p14-17 Mar 2016
This article explores an alternative conception held by high school and first-year university biology students regarding the structure of the left and right ventricles of the heart and the significance of the left ventricular wall being thicker than the right. The left ventricular wall of the heart is thicker than the right ventricular wall due to greater back pressure from the aorta during systole, and not because of the differences in the length of the pulmonary and systemic circuits, which is the current understanding. We discuss reasons this alternative conception has arisen and present an explanation to address the current understanding.
Australian Science Teachers Association. P.O. Box 334, Deakin West, ACT 2600, Australia. Tel: +61-02-6282-9377; Fax: +61-02-6282-9477; e-mail:; Web site:
Publication Type: Journal Articles; Reports - Evaluative
Education Level: High Schools; Secondary Education; Higher Education; Postsecondary Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Identifiers - Location: Australia
Grant or Contract Numbers: N/A