Answer:
when the nervous system generates a signal. The signal, an impulse called an action potential, travels through a type of nerve cell called a motor neuron. The neuromuscular junction is the name of the place where the motor neuron reaches a muscle cell.
Smoking can affect the lungs and give you lung cancer. When someone smokes, they would inhale the smoke, causing the smoke from the cigarettes to go into your lungs.
Answer:
Extend, flex.
Explanation:
Muscle can be defined as the soft tissue that helps in the movement of the body and controls the body coordination. Three main types of body tissue are smooth muscle, cardiac muscle and skeletal muscle.
The muscles also perform the extension, flexion, adduction and abduction of the body parts. The anterior surface of the muscles located on thigh hwlps in the body extension. The muscles located on the posterior surface of the thigh helps in the flexion of the knee.
Thus, the correct answer is extend, flex.
Answer:
d. Okinawans consume more vegetables but fewer calories.
Explanation:
Okinawan diet is the reason behind their long and healthy life. Their carbohydrate to protein ratio in diet is 10:1; which is opposite to the US population who eat more protein and less carbohydrate. A low protein and high carbohydrate diet protect from ageing related illnesses such as Alzheimer, cancer and cardiovascular disease.
