How is a tendon different from a ligament. a. a tendon joins a muscle to a bone; a ligament joins a bone to a bone. b. a tendon supplies nutrients to a bone; a ligament covers a bone. c. a tendon covers a bone; a ligament supplies nutrients to a bone. d. a tendon joins a bone to a bone; a ligament joins muscle to a bone.

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.  

the correct answer is option d.

an appositive is a noun, noun phrase or noun clause which follows another noun or noun phrase in order to describe it or name it another way. they are usually used between commas, brackets or dashes.

the example sentence with the correct use of commas is the following:

her uncle, the man over there in the red shirt, owns the hardware store in town.