Inductive definition of CW complexes. If the largest dimension of any of the cells is n, then the CW complex is said to have dimension n. If there is no bound to the cell dimensions then it is said to be infinite-dimensional. The n-skeleton of a CW complex is the union of the cells whose dimension is at most n.
Deoxygenated blood enters the right atrium through three major veins: the superior and inferior vena cava and the coronary sinus. The superior vena cava returns all of the blood to the heart from tissues superior to the heart in the head, neck, arms and upper thorax.
name two veins that enter the right atrium; name those that enter the left atrium. superior vena cava-carries the blood from the upper body and the inferior vena cava- carries the blood from the lower body. both vena cava's empty blood into the right atrium. î î î.