The skeletal part of the musculoskeletal system: a. produces facial expressions. b. the body to create heat. c. protects the organs of the body. d. eliminates wastes from the body.

protects body organs and support

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.