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1. The right ventricle of the heart is formed primarily from which embryonic structure?

a. Primitive ventricle
b. Primitive atrium
c. Bulbus cordis
d. Sinus venosus
e. Don't know

2. The folding of the heart tube takes place during which week of development?

a. 3rd
b. 4th
c. 5th
d. 8th
e. Don't know

3. Which statement is CORRECT about heart tube folding?

a. The bulbus cordis moves inferiorly, posteriorly, and to the embryo's right side
b. The primitive ventricle moves to the embryo's right side
c. The sinus venosus moves superiorly and anteriorly
d. The primitive atrium moves superiorly and posteriorly
e. Don't know

4. The heart starts to beat by day:

a. 19
b. 22
c. 26
d. 28
e. Don't know

Last updated 13 September 2002

For more information, contact:
Valerie Dean O'Loughlin, Ph.D.
Assistant Professor of Anatomy and
Director of Undergraduate Human Anatomy
Jordan Hall 010A
Medical Sciences
Indiana University
Bloomington, IN 47405
(812) 855-7723 (voice)
(812) 855-4436 (fax)