The right answer is False. (An important element missing from the definition of motor unit are motor neurons.)
A motor unit is composed of an alpha motor neuron and the muscle fibers it innervates.
Groups of motor units often work together to coordinate the contractions of a single muscle. All motor units that serve the same muscle are considered to be a group of motor units. The number of muscle fibers connected to each unit can vary: the muscles of the thigh can have up to a thousand fibers per unit, the muscles of the eyes can have only ten. In general, the number of muscle fibers involved in a motor unit is a function of the muscle's need for its refined movement: the more the muscle will need a fine movement, the less the motor unit will involve synapses with the muscle fibers.
Answer:
Exercise makes your body work harder and gets your blood flowing through your body quicker because it needs to quickly deliver the oxygen and nutrients needed to maintain your activity.
Explanation:
public health actions frequently involve a balancing of individual rights vs. the good of the community. where that balance is struck is based on: Societal values.
Not just the absence of illness or disability, health is a condition of whole physical, mental, and social well-being. Balanced health is based on the five pillars of exercise, good diet, rest, stress reduction, and social interaction. We can borrow from or exchange some balance in one area for another, but when we take too much from too many of these basics, we begin to observe a loss in general health. Instead than concentrating on common traits like age or diagnosis, community health considers a whole geographic region. Health promotion, health protection, and health services are the three categories into which the conditions and behaviors that safeguard and enhance community or population health may be divided.
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A. is not true, some prescription medications are addictive. Oxycodone and other pain killers are addicting and they are prescription
b. They can provide relief from mild to serious symptoms is true
c. is not true, listen to any commercial for a prescription medication and listen for the side affect. They are sometimes worse than the diseases.
d. Not true. Prescription means that you must have a prescription from your Dr. and that prescription must be filled by a licensed pharmacist.
So B. is the best answer!
