At the same time, when the heart relaxes, the left side of the heart is filled with blood from the left vein. This is oxygenated blood which has been brought from the lungs. When the heart contracts, this blood is pumped out of the left artery to the body.

Accessibility Commitment

We are committed to making our presentations accessible to everyone. Our platform supports adjustable text size, color schemes, keyboard navigation, and screen reader compatibility.

Keyboard Shortcuts

→ or Space
Next slide
← or Backspace
Previous slide
Home
First slide
End
Last slide
F
Toggle fullscreen
S
Open settings
N
Play/pause narration
Esc
Close dialog or exit fullscreen

Accessibility Features

  • Text resizing and customizable display settings
  • High contrast color themes
  • Alternative text for images
  • Keyboard navigation through all content
  • Screen reader compatibility with ARIA landmarks
  • Narration for text content

If you encounter any accessibility barriers or have suggestions for improvement, please contact us:

Email: [email protected]