Answer:
the ethmoidal sinus is one of the four ethmoidal sinuses
The lymph vessel flows from the tissue to the lymph nodes, flow to the largest lymphatic vessel in the thorax called thoracic duct, then drain to the subclavian vein.
The lymphatic vessel is a thin tubular organ made of the endothelial cell. It has a valve like the vein to prevent backflow of lymph. Lymphatic vessel delivers the lymph through the body and has a role in the immune system.
Answer:
The answer is A!
Explanation:
Because liquids and gases move, soilds will stay in place unless you move it.
