Answer:

Our body is made up of bones and muscles. The basic structure of our body is known as cell. When many cells combine together then it is known as tissue. When may tissue are combine together it is known as organ. Organs combine to form Organ system. And organ systems form a body
Because the lungs gradually, with the time, they lose their elasticity.
Answer:
Tinel sign.
Explanation:
Tinel’s sign, previously known as the Hoffman-Tinel sign, is something doctors use to check for nerve problems. It’s commonly used to diagnose carpal tunnel syndrome. However, the test can also be used to test for other nerve conditions, such as cubital tunnel syndrome, tarsal tunnel syndrome, or radial nerve injuries.
To check for Tinel’s sign, your doctor will lightly tap over the affected nerve. If the nerve is compressed or damaged, you’ll feel a tingling sensation that radiates outward
Because it stretches your muscles <span />
Answer:
When the body is stressed, muscles tense up. Muscle tension is almost a reflex reaction to stress—the body’s way of guarding against injury and pain.
With sudden onset stress, the muscles tense up all at once, and then release their tension when the stress passes. Chronic stress causes the muscles in the body to be in a more or less constant state of guardedness. When muscles are taut and tense for long periods of time, this may trigger other reactions of the body and even promote stress-related disorders.
Explanation:
For example, both tension-type headache and migraine headache are associated with chronic muscle tension in the area of the shoulders, neck and head. Musculoskeletal pain in the low back and upper extremities has also been linked to stress, especially job stress.