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.
The orbicularis oculi muscle lies directly underneath the surface the skin, around the eyes. Its function is to close the eyelid, and to help in the passing and draining of tears through the punctum, canaliculi, and lacrimal sac, all parts of the tear drainage system.The orbicularis oculi muscle is composed of three parts: the orbital portion, the palpebral portion, and the lacrimal portion.The orbital portion closes the eyelids firmly and is controlled by voluntary action. The palpebral portion closes the eyelids gently in involuntary or reflex blinking.he orbicularis oculi muscle lies directly underneath the surface the skin, around the eyes. Its function is to close the eyelid, and to help in the passing and draining of tears through the punctum, canaliculi, and lacrimal sac, all parts of the tear drainage system.