Lake Superior is largest lake by surface area at 82,103 square kilometers, and Lake Huron at 59,570 sq km is second largest lake in the country. The below ranked lakes are including Man-made and salt water which also mentioned for the particular lakes in the list.
An alveolus is a tiny air sac formed at the tip of the lungs' smallest airways, the bronchioles. The primary function of the alveoli is the exchange of carbon dioxide for oxygen.Tissues within the alveoli also carry out secondary functions, such as the production of hormones, enzymes, and pulmonary surfactant.he exchange of carbon dioxide for oxygen is the primary function of the alveoli. The capillaries of the alveolus branch from both the pulmonary artery and the pulmonary vein.
Advertisement. The ductus deferens, or the vas deferens, is a male anatomical part; there are two of these ducts and their purpose is to carry ejaculatory sperm out of the epididymis.ach ductus deferens is supplied by the artery of vas deferens, which branches out of the superior vesicle artery. Each ductus deferens is a tube that is approximately 30 centimeters in length and protected by smooth muscle mass. This muscle mass contracts reflexively during ejaculation in a process called peristalsis.