2. What do we call the muscles that we can control?
3. Which of the following protects our brain?
4. it pumps and pushes blood to all part of the body
5. it is passageway through which the blood flows
3. Which of the following protects our brain?
4. it pumps and pushes blood to all part of the body
5. it is passageway through which the blood flows
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2. Skeletal muscles or VOLUNTARY MUSCLES
– are under our conscious control, which is why they are also known as voluntary muscles. Another term is striated muscles, since the tissue looks striped when viewed under a microscope.
3. The brain is protected by the BONES OF THE SKULL and by a covering of three thin membranes called meninges. The brain is also cushioned and protected by cerebrospinal fluid.
4. The HEART is at the center of your circulatory system, which is a network of blood vessels that delivers blood to every part of your body. Blood carries oxygen and other important nutrients that all body organs need to stay healthy and to work properly.
5. Blood enters the heart through two large veins, the INFERIOR AND SUPERIOR VENA CAVA, emptying oxygen-poor blood from the body into the right atrium. As the atrium contracts, blood flows from your right atrium into your right ventricle through the open tricuspid valve.
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PA BRAINLEST PO
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