True or false:
1. a tendon connects bones to muscles
2. a ligament connects bones to bones
3. opposing muscles are quadriceps and biceps
4. if you stop exercising your muscles can go into atrophy
5. a smooth muscle can be controlled
6. a cardiac muscle controls your breathing
7. skeletal muscles can be strengthened my exercising
8. you have muscles in your face
9. the esophagus is a muscle
10. breaking down muscles is bad for you

1. True

2. True

3. False

4. True

5. False

6. False

7. True

8. True

9. True

10. True

Explanation:

1. Tendons connect bones to muscles. It is a band of connective tissue that has a role in movement of the body and keeps the body stabilized. The Achilles tendon is the largest tendon in the body.

2. Ligaments are also connective tissues and are flexible. They connect two bones together keeping them in place at joints and at the ends of each bone it is attached to. This is important, because it keeps the bones from twisting the wrong way. They also function as support for internal organs.

3. Opposing muscles are a pair of muscles that move opposite to each other. Biceps counterpart or opposing muscle are triceps. Quadriceps are paired with the hamstring.

4. Muscle atrophy is a condition where muscles waste away, or atrophy due to lack of physical activity. This happens a lot to people who get injured and are unable to move or use certain body parts. This is why many of them need to go through physical therapy to build up more muscle strength.

5. Smooth muscle is a type of muscle tissue that are involuntary, meaning you cannot control its movement. They are not striated and the cells that make up smooth muscles (myocytes) have a single nucleus located in the center.

6. Cardiac muscles are found in the heart. They control the pumping of blood. Like smooth muscles, they are involuntary.

7. Skeletal muscles are strengthened through exercise. Exercise allows them to better use oxygen and it can also help build up muscles. Aerobic and resistance exercises are often recommended.

8. Your face is composed of facial muscles, and are responsible for the different facial expressions we make. It also helps in speech.

9. The esophagus is a muscle and is part of our digestive system. It connects our pharynx and the stomach. It is about 8 inches long and is lined with mucus to help food slide down to the stomach and protect it from harmful substances.

10. Breaking down of muscles is definitely bad for your health. When muscles breakdown, such as skeletal muscles, they release a protein called myoglobin, which is responsible for keeping oxygen in the muscle. When these protein accumulates in the blood, it can affect the kidney and lead to kidney damage.