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Figure 2 | BMC Developmental Biology

Figure 2

From: Regular heartbeat rhythm at the heartbeat initiation stage is essential for normal cardiogenesis at low temperature

Figure 2

Morphological characteristics of the ventricle, atrium, and AVC during a single heartbeat. A and B: Examples of the heart at st.34 in the control (A) and regurgitating (B) medaka embryo. Light blue, orange, and black lines indicate the diameter of the ventricle, atrium, and AVC, respectively. C and D: External diameter of the ventricle, atrium, and AVC during a heartbeat in the control (C) and regurgitating (D) embryo. E–G: Characteristics of contraction of the ventricle (E), atrium (F), and AVC (G). Red and black lines indicate the regurgitated and control embryos, respectively. a: The period when the ventricle maintains the contraction; b: The atrial contraction and ventricular dilatation period; c: the ventricular contraction period.

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BMC Developmental Biology

ISSN: 1471-213X

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