Yes. Just like you have to constantly stimulate your mind to stay sharp, your muscles require consistent movement for your body to be in balance. Through inactivity, muscles atrophy and joints lose lubrication, causing you to feel older than you are. It's 'use it or lose it'.
There are the abdominal muscles and the oblique's. They help to keep you standing straight and when working properly, your back healthy.
If your scars heal and if you can move your muscles, you know your cells are working.
No, they are involuntary muscles, and will keep operating with out our control.
they are constantly working
Oxygen
Never, you always have working muscles. Eg: your core muscles work to keep you standing/upright.
There are the abdominal muscles and the oblique's. They help to keep you standing straight and when working properly, your back healthy.
The best way to keep your muscles strong and working efficiently is through exercises. Diet also plays an important role in keeping muscles healthy and efficient.
Yes, the abdominal muscles, for the most part are considered as flexors. They oppose the muscles in the back which are extensors. Working together the abs and back muscles keep the spine in proper alignment.
There are many reasons to have healthy nutrition. Healthy nutrients keep your heart beating, your brain active and your muscles working. Nutrients also help build and keep bones, tendons, and muscles strong.
The muscular does keep your body warm because say for instance you where working out. When working out you sweat, to cool you off and shiver to warm you up so your working out working your muscles.
involuntary muscles
Protein is a very important nutrient because it builds up your muscles, organs and glands. It repairs and replaces them too, so that your body can keep on working.
When you work the muscles gets stronger and healthy.
Likely to be because your body and muscles are working hard to keep you warm whilst you are in the cold ...(i.e. shivering) so when you actually warm up and your muscles can rest you feel tired as you have used a considerable amount of energy to keep warm
Because your exercising your muscles are using more oxygen. In order for your body to keep working and keep up with the amount of oxygen your body is needing, it speeds up the breathing. This gets more oxygen in and flowing to your muscles. If you muscles just relied on the amount of oxygen you got in with a normal breathing rate, you wouldn't get far.
Tendons, muscles & bone marrow basically. The cartilage between the bones is important too but wears over time