1 Having a Pacemaker

HAVING A PACEMAKER HARRIET BRUNDLE

有起搏器的哈丽特·布伦德尔

WHAT IS THE HEART? Your heart is a very important organ. It pumps blood all around your body. Your heart must keep pumping your blood for you to stay alive. Hi! I'm Hattie Heart. It's nice to meet you!

心是什么？心脏是一个非常重要的器官。 它把血液输送到全身。 你的心脏必须不停地供血才能活下去。 嗨！我是海蒂·哈特。很高兴认识你！

Your heart is part of a bigger system in your body known as the circulatory system. Your heart pumps blood without you thinking about it. I'm busy all the time, even when you're asleep.

心脏是人体循环系统的一部分。 你的心脏会不假思索地抽血。 我一直很忙，甚至在你睡着的时候。

HOW DOES THE HEART WORK? The right side of your heart receives blood that has been going around your body. It sends this blood straight to your lungs. LUNGS I'm found in your chest.

心脏是如何工作的？心脏的右侧接收一直在你身体各处流动的血液。 它把血液直接送到你的肺部。 我在你的胸腔里找到了肺。

The left side of your heart receives blood from your lungs, which is ready to be pumped around your body again. Every time your heart beats, it's moving your blood. I'm about the size of your fist.

心脏的左侧接收来自肺部的血液，这些血液准备再次被泵入全身。 心脏跳动的每一次，都是血液的流动。 我和你的拳头差不多大。

WHY DOES MY BODY NEED BLOOD? Every part of your body needs blood traveling to and from it. This is because your blood carries oxygen, which is a gas we breathe into our lungs. Oxygen is all around us.

为什么我的身体需要血液？ 你身体的每个部位都需要血液进出。 这是因为你的血液携带氧气，这是一种我们吸入肺部的气体。 氧气就在我们身边。