The answer is body's line of defense. The first line of defense which includes physical as well as chemical barriers would defend the body from infection. It would include the tears, cilia, stomach acid,urine, white blood cells,mucus and the skin. The skin is the largest organ and would act as a barrier from pathogens. If first line of defense won't work the second line will then be activated.
The branch of medicine or biology that deals with the anatomy, functions, and organic disorders of nerves and the nervous system.
Answer:
Ergonomic
Esther has been lifting tools all day, so most likely the repetitive movements or improper lifting caused her pain.
Answer: The condyloid joints in the knee provide lubrication for movement. Condyloid joints are found between the metacarpal bones and the phalanges. Since condyloid joints are at an increased risk of injuries when compared to other type of joints in the human body.
Explanation:
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