Science Muscles

There are approximately how many muscles in our body?

• Approximately 600 muscles

• Approximately 800 muscles

• Approximately 300 muscles

• Approximately 100 muscles

They are hundreds to thousands of long and thin cells found in the muscles.

• muscle fibers

• nerve cells

• bone cells

• fat cells

Tags

NGSS.MS-LS1-3

Along with some fats, they make up most of the weight of our body. They fill out the shape of the body, cover the whole skeleton, hold the body together and protect certain organs inside the body.

• Bones

• Skin

• Brain

• Muscles

What are the three (3) kinds of muscles?

• upper, middle, lower

• skeletal, smooth, and cardiac

• flexor, extensor, abductor

• bicep, tricep, quadricep

What is the main function of muscles in the human body?

• To produce red blood cells

• To provide structural support

• To facilitate movement and maintain posture

• To store calcium

These are muscles attached to the bones. They hold the bone of the skeleton and give shape to the body.

• Nervous muscles

• Skeletal muscles

• Smooth muscles

• Cardiac muscles

These are involuntary muscles. Their cells are small and delicate because the fibers are smooth. These muscles handle the work of almost all the internal organs, except for the heart.

• Smooth muscles

• Textured muscles

• Bumpy muscles

• Rough muscles

Identify the following muscles as skeletal, smooth and cardiac muscles.

1. 1. Abdomen 2. Esophagus 3. Legs 4. Chests 5. Heart

2. 6. Diaphragm 7. Arms 8. Stomach 9. Face 10. Neck

Part of our body that tough, elastic tissues that give shape to the body and produce movement. They act as a cushion to protect our body when we fall or bump into something hard and protect our internal organs.

• nerves

• bones

• skin

• muscles

The muscles that protect the stomach and the kidneys from external forces that may damage them.

• Neck muscles

• Arm muscles

• Leg muscles

• Abdominal muscles