'coz it does... u got prob??': Yeah, I'm sure that wasn't a particularly enlightening answer...So, I'll have a stab at it below.
Muscle tissue, specifically, skeletal muscle, is used for energy during starvation. This is simply because muscle tissue contains a (relatively) great deal of non-essential structural protein, that can be used to provide energy without *immediately* causing death. Amino acids derived from hydrolyzed muscle protein can actually be used as sources of energy. Indeed, amino acids are classified as ketogenic and glucogenic, depending on if they can yield ketone bodies (acetoacetate, 3-hydroxybutarate) and acetyl-CoA or carbohydrate precursors (eg. oxaloacetate; pyruvate), respectively.
But what's the energy liberated from muscle tissue used for? Simply, to provide energy for organs more crucial than skeletal muscle, basically the brain. The amino acids from skeletal muscle can be converted to carbohydrate precursors which enter the gluconeogenic pathway, creating new glucose, which the brain can use for energy (brain-and nervous tissue-prefer glucose to all respiratory substrates). In addition, cells and organs without mitochondria, such as red blood cells, the kidney cotex and testes, better known as balls (yeah, that's right: its done for the family jewels too) can ONLY use glucose for energy, as only glucose can be anaerobically respired. In fact, some types of skeletal muscle fibres (type 1/white/fast twitch/glycolytic) too can only use glucose for energy as they have little to no mitochondria. The ketones derived from muscle protein are alternate sources of energy for the brain, kidneys (excluding their cotices, as aforementioned) and...skeletal muscle.
So that, in a nutshell, is why the body uses muscle tissue for energy.
It can be stored in the muscle or adipose tissue as a triglyceride for later use
There are use by the body as energy, for repairing, and to maintain the body in shape... example.. the body needs protein to repair muscle tissue.
Adenosine triphosphate (ATP)
Proteins are used to build and repair muscle tissue
Which muscle tissue can be both voluntary and involuntary use an example?
One way to accurately measure skeletal muscle mass is through methods such as dual-energy X-ray absorptiometry (DXA) or bioelectrical impedance analysis (BIA). These techniques use technology to assess the amount of muscle tissue in the body.
tissue can either mean; tissue- as in from a body muscle tissue/ biology or tissue- as in the thing you use to wipe your nose with! or tissue -there many other types of tissue toilet paper kitchen roll-you name it- they are all types of tissue as well!
Fats store energy for the body and other nutrients such as Vitamin A and D.
When dieting, not just when starving yourself, your muscles damage themselves while being used. The damage isn't as severe as tearing a muscle, but the tissue does need time to recover. If there's enough protein in the body, resting will allow the body to use the protein to repair the muscle tissue. If there isn't enough protein, the body may try to get it elsewhere, but in general it cannot convert other stored mass, such as fat, into protein. Thus you start to lose muscle tissue. This is '''not''' a healthy way to reduce muscle tissue.
When one tears it muscles while working out in the gym or carrying something heavy, the muscle tissue will break. After it breaks, muscle tissue will slowly repair, piece by piece. And thus, after a day or two, the muscle will recover, if not, see a doctor. ATTENTION: IT CAN BE DANGEROUS.
One of his cardiac muscles was badly damaged.
Tissue made of cells that contract and relax to produce movement is called muscle tissue.