umbilical cord {Ans: a tube containing the blood vessels connecting the fetus and placenta}artery {Ans: any blood vessel that carries blood away from the heart}scrotum {Ans: a pouch of skin containing the testes}gallbladder {Ans: stores bile}vein {Ans: any blood vessel that carries blood back to the heart.}pulmonary veins {Ans: vessels that carry blood from the lungs to the heart}anus {Ans: A muscular opening at the end of the rectum through which solid waste exits the body}tarsals {Ans: bones of the ankle}coccyx {Ans: vertebrae that are fused, not flexible, also known as the tailbone}ulna {Ans: larger bone of the lower arm}umbilical arteries {Ans: carry deoxygenated blood and waste from the fetus to the placenta}cervical vertebrae {Ans: bones of the neck portion of the spinal column; 7 in humans}esophagus {Ans: A muscular tube that connects the mouth/pharynx to the stomach.}mesentery {Ans: structure that anchors the small intestine from the posterior body wall, holding it in place}alveoli {Ans: microscopic sacs where gas exchange occurs in the lungs}phalanges {Ans: bones of the fingers and toes}pulmonary valve {Ans: valve positioned between the right ventricle and the pulmonary arteries}tendon