Frog skeleton parts12/28/2023 The Atlas The atlas is the first vertebrae of a frog, laying right underneath the base of the skull. Also like a human, the vertebrae serves many purposes. While a human skeleton is made up of twenty- four vertebrae, a frog only has nine complete ones. One of the main places this can be observed is the vertebrae. The skull is divided into three regions: (1) Cranium (2) sensory capsules (3) pharyngeal skeletonĩ Frogs have a skeletal structure similar to humans, it is just less complex. These bones are known as membrane bones or investing bones. Some other bones arising from the dermal tissue are added in the skull of frog. In tadpole stage, the skull is made up of only cartilage and hence is called chondrocranium, but in the adult frog most of these cartilagenous components are transformed into bones. Read on to find out how frogs hear without ears and why their eyes are perched on top of their heads.ĥ SKULL OF FROG The skull of frog is somewhat triangular and ventrally flattened. The vertebrae at the bottom end of the spine are fused into one bone called the urostyle. A frog's pelvis can slide up and down its spine, which may help it jump. The rib-like structures you can see in the picture above are part of its spine. Frogs have skulls but don't have necks, so they can't turn, lift or lower their heads like people can. But a frog's skeleton isn't so similar to a human's once you get past the extremities. These frogs have textured feet - the surface acts like series of microscopic canals that keep the adhesive flexible and prevent it from cracking as the frog moves. In some species, this is a very thin layer of watery fluid that increases the friction between the frog's feet and the surface. Sticky Feet Some frogs use a wet or sticky substance on their feet to help them climb trees and cling to surfaces. Often, their feet are shorter and wider, like shovels or spades. Some frogs burrow into the soil in the summer or winter. Aquatic frogs also have long toes - the spaces between them are webbed so they can use their feet like flippers. Tree frogs have long, flexible toes that allow them to grasp stems and branches as they climb around. The length and shape of the toes has a big impact on how the frog moves. Most of the time, a frog has five toes on its back legs and four toes on its front legs. A collection of small bones makes up a frog's digits, or its fingers and toes. A frog has two scapulae, or shoulder blades, and clavicles, or collarbones, that are shaped a lot like the same bones in a person's body. The same is true for a frog's legs - the femur supports its upper leg, and the bones of the lower leg, the tibia and fibula, are fused. However, a frog's radius and ulna are fused into one bone. Just like in a person's arms, in a frog's front legs are bones called the humerus, the radius and the ulna. Even though frogs don't look much like people on the outside, their skeletons are similar to people's skeletons, especially when it comes to their limbs. Just like mammals - including people - a frog's body has a heart and lungs as well as a stomach, pancreas, liver, gallbladder and intestines. Skull: bony case of the brain.Īs anyone who has dissected one in biology class knows, a frog's internal organs look a lot like what you'd find inside a much larger animal. Pterygoid: one of the bones of the palate, forming the root of the mouth. Vertebra: each of the bones forming the spinal column. Tarsus: each of the bones forming the heel. Metatarsus: each of the bones forming the part of the foot between the toes and the heel. Phalanges: each of the bones forming the toes. Ischium: one of three bones forming the ilium. Urostyle: adaptation of one or several vertebrae, stretching the hindquarters. Metacarpus: each of the bones forming the part of the hand between the fingers and the wrist. Carpus: each of the bones forming the wrist. Occipital lateral: occipital lateral bone. Phalange: each of the small bones forming the fingers. Prootic: bones forming the auditory region. Orbital cavity: skull cavity that contains the eye. Skeleton of a frog: web-footed amphibian which lives near lakes and ponds. SKELETAL SYSTEM Practical work by: sadia khurshid
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