Respiratory organs in frogs

Respiration is the mechanism by which living beings receive oxygen in order to oxidise their stored digested food and release energy that they require to continue their life by keeping all of their other metabolic functions in check.

Respiratory organs in frogs

The frog’s body contains three respiratory surfaces that it employs to exchange the gas with the environment: skins, lungs, and mouth lining. The frog’s whole respiration takes place via the skin while entirely immersed. Because of the thin membranous membrane, breathing gases can easily pass along gradients between blood vessels and the surrounding environment. Mucus glands on the epidermis keep the frog wet when it is out of the water, which aids in the absorption of dissolved oxygen from the air.

A frog can also breathe in the same way that human do, by inhaling through their nose and exhaling through their lungs. However, the method for getting air into the lungs differs slightly from that of humans.

The frog lowers the floor of its mouth to pull air into it, which causes the neck to expand. The nostrils then expand, enabling air into the enlarging mouth. When the nostrils close, the air in the mouth is driven into the lungs by the contraction of the mouth floor. The floor of the mouth glides down, sucking air out of the lungs and into the mouth, to expel carbon dioxide from the lungs.

Humans have ribs and a diaphragm, which help to expand the chest, decreasing the pressure in the lungs and allowing outside air to flow in. Frogs, on the other hand, lack ribs and a diaphragm, which help to expand the chest, lowering the pressure in the lungs and allowing outside air to flow in.

To get air into its mouth, the frog lowers the floor of its mouth, causing the neck to expand. The nostrils then open up, allowing air to enter the expanding mouth. The contraction of the mouth floor drives the air in the mouth into the lungs when the nostrils close. To evacuate carbon dioxide from the lungs, the floor of the mouth slides down, pulling air out of the lungs and into the mouth.

Frog skin is well adapted to respiratory function because it is thin, densely supplied with blood capillaries, and constantly wet with water and mucus released by mucous glands.

During gaseous exchange, oxygen dissolves in the moisture present on the body before diffusing into the blood flowing in the blood capillaries, whereas carbon dioxide diffuses out of the blood into the surrounding medium (water). Because the skin is always exposed to air or water during cutaneous respiration, no motions are required.

Respiratory Organs:

 Pair of lungs serve as the organs of aerial respiration. The lungs are not just respiratory organs, but they are also hydrostatic organs, allowing the frog to float in water when expanded. The respiratory fact allows air to enter and exit the lungs.

Respiratory tract:

The external nostrils, nasal chambers, internal nostrils, bucco-pharyngeal cavity, glottis, laryngo-tracheal chamber, and a pair of bronchi are all part of this shape. On the floor of the pharynx, the median slit-like glottis opens into the larynx (laryngo-tracheal chamber). The larynx is a tiny sac with two arytenoid and one cricoid cartilage supporting its walls. The larynx is surrounded by a thin ring of cartilage called cricoid cartilage.

The arytenoid cartilages are semilunar valves that sit on top of the cricoid cartilage. The glottis’ lateral boundaries are formed by their top edges. They let the glottis be opened or closed by attaching to muscles. The vocal cords, a pair of elastic bands stretching longitudinally across the larynx, are the primary sound-producing organs. 

 Lungs:

In the anterior section of the body cavity, there are two lungs, one on each side of the heart. They’re ovoid, thin-walled, elastic sacs with shallow internal folds or septa that expand the interior surface to generate multiple alveoli chambers. These are separated by septa from one another. 

Pulmonary Respiration Mechanism:

The movement of the floor of the buccal cavity, which functions as a force pump, is responsible for the entering and exiting of air from the lungs. Two sets of muscles, the stemohyal and petrohyal muscles are responsible for the actions of the buccal cavity floor.

Conclusion 

A frog can also breathe in the same way that humans do, by inhaling through their nose and exhaling through their lungs. To get air into its mouth, the frog lowers the floor of its mouth, causing the neck to expand. During gaseous exchange, oxygen dissolves in the moisture present on the body before diffusing into the blood flowing in the blood capillaries, whereas carbon dioxide diffuses out of the blood into the surrounding medium (water).