'Anatomy and Physiology'
Read CH 19.1 The Heart Anatomy and 19. 5 Development of the Heart. (30 minutes)
OpenStax
Click https://openstax.org/books/anatomy-and-physiology/pages/19-1-heart-anatomy link to open resource.
Read CH 19.1 The Heart Anatomy and 19. 5 Development of the Heart. (30 minutes)
OpenStax