The process that must occur is the recruitment of motor units.
Muscles allow us to lift heavy things. They are made of fibers, that when they contract themselves, the tension increases, allowing us to lift objects.
When we want to lift a heavy object, our body contracts the necessary muscles that we will use for that. In other words:
- The motor neuron that innervates several skeletal fibers sends the signal to them
- The fibers contract themselves,
- The tension increases, producing the necessary force to lift an object.
If the object is too heavy and we can not lift it, the process that must occur is the recruitment of motor units. That is to say, that more motor neurons with their fiber muscles (motor units) should be activated to increase the number of fibers contracting themselves to lift the heavy object.
In conclusion, the muscle needs more active motor units to lift something heavy, and the body does this through recruitment.
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Answer: reduces the risk of heart disease and kidney disease
Explanation:
The vegetarian food is free from extra fat and cholesterol. The cholesterol is found in animals based food, particularly concentrated in the eggs and organ meat. Even the high fat containing plant based food contains no cholesterol.
The fat and cholesterol are the two biomolecules which are likely to get accumulated in the blood vessels which can hamper the functioning of the blood vessels. The blood vessels carries the blood to the heart to get it purified and also takes the wastes from all over the body along with the blood to get them excreted out. As, the vegetarian diet is fat and cholesterol free, the blood vessels which not accumulate fat. Thus the blood vessels will facilitate the proper functioning of heart and kidneys and will prevent related diseases.
No hair = no lice!
lice like hair and warm places.
