Which of the following is most likely to be found in a desert environment?
broad leaves to capture sunlight
spines instead of leaves
needle-like leaves
wide, flat leaves that can float

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.  

answer; the code in musculoskeletal system subsection is associated with deep tissue possibly to the bone;

answer; synapse;