1. The work of the heart can never be interrupted.
P. All the body's cells need a constant supply of oxygen, especially those in the brain.
Q. Then death comes to the entire body.
R. The heart's job is to keep oxygen-rich blood flowing through the body.
S. The brain cells live only four to five minutes after their oxygen in cut off.
6. It is, thus, a specialized muscle, the four chambers which work to keep the blood flowing round the body.
5Q:
1. The work of the heart can never be interrupted.
P. All the body's cells need a constant supply of oxygen, especially those in the brain.
Q. Then death comes to the entire body.
R. The heart's job is to keep oxygen-rich blood flowing through the body.
S. The brain cells live only four to five minutes after their oxygen in cut off.
6. It is, thus, a specialized muscle, the four chambers which work to keep the blood flowing round the body.
- 1PQRSfalse
- 2SPRQfalse
- 3RPSQtrue
- 4QRSPfalse
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