Amphibians reliably breathe both lung and skin, so what is the use of this skin?

The breath of a frog.

Amphibians use three ways for gas exchange: mouth, mouth, and lung respiration. Frogs and toads rely more on lung respiration than newts, but the epidermis provides an important supplement to the gas exchange of tailless species, especially when winter comes, and they need to breathe when they are hibernating.

However, even under normal conditions, most of the carbon dioxide is released from the epidermis while the lungs are getting oxygen while the lungs are taking on breathing. Frogs are forced to bring air into the lungs by positive pressure (unlike people who use negative pressure), and during their breathing, mouth breathing and lung breathing are staggered, but the frequency of mouth breathing is greater than that of lung breathing. Although the frog also uses its lungs to breathe like us, its lungs are not developed, just a pair of thin-walled sacs, the structure is very simple, and the amount of gas exchange is very small.

The frog's ** often secretes mucus and keeps it moist, so that the oxygen in the outside air and the carbon dioxide in the ** microvascular blood are exchanged to supplement the lack of lung breathing. The oxygen obtained by frogs through ** breathing accounts for about 40% of the total oxygen intake.

Adult amphibians breathe with lungs in the water, adult amphibians have lungs, amphibians breathe with gills when they are young, and with lungs when they are adults, like frogs, do not plagiarize, ah.

Amphibian larvae live in water, and when they are young, they breathe with gills, and adults mainly use their lungs and ** to breathe, and the oropharyngeal membrane is also an auxiliary respiratory organ.

Taking frogs as an example, the respiratory tract of frogs is very short, there is no obvious trachea, with 1 pair of cystic lungs, honeycomb-shaped, only a few folds in the inner wall of the lungs, and there is a diaphragm to divide the lungs into many alveoli, and the breathing area is limited. Note: During hibernation, amphibians mainly breathe by **, and in normal times, they mainly breathe with their lungs.

Oral breathing is a way of exchanging gases in the mouth and is not in the lungs. The lungs of birds are tightly structured, relatively less elastic, highly vascularized organs that sit just below the spine and are embedded between the ribs of the ribcage. Due to its compact structure, it occupies only half the volume of mammals, but due to the presence of the balloon structure, the total volume of its respiratory system is about 3 times larger than that of mammals.

Birds breathe in a double way with their lungs and air sacs, and there are many membrane air sacs in the body cavity of birds that communicate with the lungs. During inhalation, a portion of the air enters the anterior sac after gas exchange in the lungs, and the other part of the air passes through the bronchi directly into the posterior sac. When exhaled, the air in the anterior sac is exhaled directly, and the air in the posterior sac is exhaled through the lungs, where gas exchange takes place.

In this way, during one breath, two gas exchanges take place in the lungs, hence the name double breathing. The appearance of the air bag and the "double breathing" are important adaptations of birds to the life of flying, ensuring the smooth progress of vigorous breathing during flight. The mammalian lung is the most structurally complex and is made up of a complex "bronchial tree", the blind end of which is the alveoli.

The number of alveoli is very huge, thus greatly increasing the respiratory surface area, such as the total alveolar area of sheep can reach 50 90m2, the alveoli of horses can reach 500m2, and the alveoli of humans are 70m2, which is equivalent to 40 times of the body surface area, which significantly improves the effect of gas exchange. There are elastic fibers between the alveoli that allow the lungs to retract passively with the help of breathing. The respiratory system of mammals is very well developed, especially in terms of respiratory efficiency.

Air enters the lungs through the external nostrils, nasal cavity, larynx, and trachea, where gas exchange is completed.

Summary. Hello dear, amphibians can be breathed to aid breathing. Breathing refers to the exchange of oxygen and carbon dioxide gases with the surrounding environment through a surface.

How does amphibians assist breathing.

Hello dear, amphibians can be breathed to aid breathing. Breath calling refers to the exchange of oxygen and carbon dioxide between the shape chain and the surrounding environment through the surface. Bu Lian Sun.

The skin of amphibians is usually very thin and moist, which allows oxygen and carbon dioxide to be carefully mined for gas exchange through the capillary network on the surface. Respiration is especially important for some smaller amphibians, such as frogs and salamanders, because of their relatively large area, which can provide more area for gas exchange.

Due to the relatively low efficiency of respiratory hand-attacked sources, amphibians often perform other forms of respiration to meet the needs of gas exchange. For example, they breathe lung-hungry breathing through their lungs and use their gills for gill respiration (amphibians that live in water).

Can amphibians absorb oxygen from water?

Dear, amphibians can absorb a small amount of oxygen in the water.

What do the oriental salamanders eat mainly.

The Oriental salamander is an amphibian whose main diet includes insects, worms, small crustaceans, and other small aquatic creatures. It also preys on small fish and amphibians, and can even eat larger foods such as the carcasses of small birds and rodents. The Oriental salamander is a carnivore that feeds on other animals for nutrition.

Can you feed the oriental salamander fish feed?

Dear, you can feed fish feed to the oriental salamander.

What should I do if the oriental salamander lies on the bottom of the water for a long time and does not come out to move?

Dear, I suggest that you check the water quality to make sure that the water is good, including temperature, pH and oxygen content, and that the Oriental salamander lives in a clean, transparent and oxygen-rich water call.

How often do oriental salamanders change their water.

Dear, in general, the water of the oriental salamander can be changed once a week. Before replacing the water in the shed, it is necessary to clean the sink and remove the dirt leakage and waste of the chain, which can be kept clean by adding some water purifier.

Most adult amphibians are able to breathe through ** and lungs. The mucus underneath them keeps their body surface moist, allowing oxygen to pass through more easily. About 200 species of salamanders do not have lungs, and their breathing can only be carried out through the ** and mouth.

The larvae of amphibians breathe through their gills. The surface of these gills is mostly fleshy. It is feathery and has good blood** for easy access to oxygen from the water.

a. The body surface of amphibians is exposed, the heart has two atria and one ventricle, the ability to transport oxygen is not strong, and the body temperature changes with the change of the external environment to ectothermic animals, which does not meet the topic

b. The crab is an arthropod, the turtle and crocodile are reptiles, the penguin is a bird, and the seal is a mammal, and they all live an amphibious life, which is in line with the theme

c. The back of amphibians has a vertebral column composed of vertebral bones, which is a vertebrate animal and does not meet the theme d. The larvae of amphibians live in water and breathe with gills, and adults can live both in water and on land, and breathe with lungs and at the same time use ** to assist breathing, which does not conform to the theme

Therefore, b