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Frog's Respiratory Organs

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Submitted By karamie
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1. External nares- External nares are located on the top of a frog's snout, and look like small slits. These make it possible for the frog to float on the surface of the water, leaving its external nares above the water level for inhaling oxygen. 2. Internal Nares- Internal nares are on the roof of a frog's mouth. Air passes from the external nares into the mouth through these openings. They can be closed using a sphincter muscle when the frog is submerged under water to prevent water from entering the mouth and therefore the lungs. 3. Pharynx- Pharynx is a tube like structure that connects the nasal and oral cavities to the larynx. Pharynx is nothing but throat. It is divided into nasal, oral, and laryngeal pharynx. The nasopharynx is located posterior to the nose and is above the soft palate. The oropharynx houses the faucial, or palatine, tonsils. The laryngopharynx extends from the hyoid bone to the cricoid cartilage. The entrance of the larynx is formed by the epiglottis. 4. Larynx- The larynx, or voice box, connects the pharynx to the trachea and consists of carilage, ligaments, connective tissue, muscles, and the vocal cords. The cartilage provides a rigid structural framework for the larynx and trachea below, making sure that the airways is open at all time.
Well as you probably already know it is part of the respiratory system and it is your voice box. Your larynx is where sound is, well, produceded. Your larynx also takes in air and sends it to your lungs. 5. Trachea- The trachea is also known as the windpipe. It is a bony tube, which connects the nose and mouth to the lungs, hence is an important part of the respiratory system in vertebrates. function is to assist in breathing as grown frogs do not have gills, 6. Lungs- A frogs lungs provide adult frogs the ability to breath not only through their skin, but to also be able to inhale oxygen through their nostrils. By doing so the frog has the ability to receive oxygen two different ways. 7. Alveoli- The alveoli are the places where carbon dioxide and oxygen are exchange between tiny capillaries.

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