Question

Строение лёгких у лягушек​

Answer 1

Лёгкие лягушки-небольшие вытянутые мешочки с тонкими эластичными стенками.(мешковидные лёгкие)

Answer 2

Structure of Frog Lungs

The structure of frog lungs is adapted for their unique respiratory needs as amphibians. Frogs have a dual respiratory system, which means they can breathe through both their lungs and their skin. This allows them to obtain oxygen from both air and water.

1. Lungs: Frog lungs are relatively simple compared to mammalian lungs. They consist of two elongated sacs located in the chest cavity. The lungs are soft and spongy, with a thin wall that allows for gas exchange. Oxygen from the air diffuses into the lung tissue and is then transported to the bloodstream, while carbon dioxide moves in the opposite direction.

2. Skin: In addition to lungs, frogs also have a highly vascularized skin that aids in respiration. Oxygen can diffuse directly through the moist skin and into the bloodstream. This is particularly important when frogs are in water or in environments with high humidity.

3. Glottis: The glottis is a small opening located at the back of the frog's mouth. It serves as the entrance to the respiratory system. When a frog is on land, the glottis remains closed, and air enters the lungs through the nostrils. However, when a frog is submerged in water, the glottis opens, allowing water to pass through and oxygen to be absorbed by the skin.

4. Vocal sacs: Frogs have vocal sacs, which are inflatable structures located in the throat region. These sacs are used for producing mating calls and amplifying sound. While not directly involved in respiration, they are connected to the respiratory system and play a role in the frog's overall respiratory function.

5. Circulatory system: The circulatory system of frogs helps transport oxygen from the lungs and skin to the body's tissues. Oxygenated blood from the lungs is pumped by the heart to the rest of the body, while deoxygenated blood returns to the heart to be reoxygenated.

Overall, the structure of frog lungs, combined with their skin and other respiratory adaptations, allows them to efficiently obtain oxygen from both air and water, enabling them to survive in diverse environments.