Pneumatic bones are hollow and hence are light- weight. This helps in weight reduction. Air sacs are continuous with lungs so that extra air can be filled in air sacs. This provides buoyancy. Thus, …

The bones of birds are lighter in weight than those of mammals. Some of the bones are hollow and actually act as part of the avian respiratory system. These bones, called pneumatic bones, include …

A) Amphibians (frogs) do not have pneumatic bones as they do not fly. The pneumatic skeleton consists of hollow bones which help in flight.

Birds have hollow bones that contain air cells, which leads to increasing their buoyancy and helps them in flight. These hollow bones are called pneumatic bones. Buoyancy is the ability of a body to float or …

Pneumatic bones are bones containing air-filled cavities within them, making them lighter than solid bone. These bones, being lighter in weight, help the birds in flying.

Which of the following classes is incorrectly matched with its general characters? Cyclostomata: Lack jaws and paired fins and body is covered with placoid scales. Reptilia: Tympanum represents ear …

Pneumatic bone is also called as a hollow bone. It is a bone that contains many air cells and thus is hollow. It gives lightweight to the body. For example, the skeleton of birds.

Pneumatic bones is a characteristic feature of birds. In biology, the term pneumatic refers to breathing. Birds have remarkably specialized bones that are pneumatic, because they are full of air sacs that …

Pneumatic bones are very light, as they contain hollow cells filled with mucous membrane and air.Found in close proximity to nasal cavity. In the human body, pneumatic bones are found only in the skull …

Birds have a well-developed four-chambered heart. The body is covered with feathers. Forelimbs are modified into wings. Bones in birds are hollow; such bones are called pneumatic bones. All these are …