6. What determines WHERE bone tissue is formed? Select one: O a. places where you think the bone cells should grow O b. places where there is too much bone O c. places in the body where muscles put stress on the bones O d. places in the body where little stress is put on the bones

these muscles maintain the blood pressure in the vessels. the smooth muscles are innervated by nerves of the autonomic nervous system. when the muscles contract, they cause vasoconstriction of the vessels and increase blood pressure. when the muscles relax, they enable vasodilation of the   blood vessels hence reduce blood pressure.