The heart is a muscle with four chambers. When it contracts, it pushes blood through valves that keep the flow moving forward. The right side sends blood to the lungs for oxygen, and the left side sends oxygen-rich blood to the rest of the body. That repeating cycle is what keeps tissues supplied with oxygen and nutrients.
Log in to join the discussion.
Lead Chemist
4 hours ago
The four chambers explanation makes this much easier to visualize.
0 upvotes
Curious Reader
4 hours ago
The valve timing is the part that finally clicked for me too.
0 upvotes
Ask Brain Bot about this post
Ask targeted follow-ups with this post as context.
Study Flashcards from Post
Open an interactive flashcard modal with swipe and flip support.
Tip: tap card to reveal answer, swipe left/right to move, or use Prev/Next.
Interactive Flashcards
Generate or resume your category deck below.
One-click Revision Mode
Convert this post into bullets, exam questions, or a cheat sheet.
Pick a mode to generate a revision view.
Was this post helpful?
Your quick feedback helps improve what shows up first.
No feedback submitted yet.