Frog:Skeletal System (55x90cm)

A “Frog: Skeletal System” (55×90 cm) educational chart provides a full-color, labeled diagram of the frog’s skeleton, highlighting both axial and appendicular components for zoology and anatomy instruction.​

Chart Features and Major Structures

Size and Material: Measures 55×90 cm, printed in color and typically laminated for durability during repeated classroom or laboratory use.

Axial Skeleton:

Skull: Broad, flat with a triangular cranium, containing the brain and sensory capsules (eye, nasal, auditory).​

Vertebral Column: Usually 10 vertebrae—including the atlas (first), typical vertebrae (middle), sacral (eighth), and urostyle (the long, fused terminal bone). Frogs lack a neck and tail vertebrae.​

Absence of Ribs: Frogs do not have true ribs; their breathing mechanism relies on other adaptations.​

Appendicular Skeleton:

Pectoral Girdle: Includes suprascapula, clavicle, coracoid, and sternum; supports and connects the forelimbs.​

Pelvic Girdle: Composed of ilium, ischium, and pubis, fused to support jumping and connect the hind limbs.​

Forelimbs: Humerus (upper), radio-ulna (fused forearm bones), carpals, metacarpals, and phalanges (fingers).​

Hindlimbs: Femur (thigh), tibiofibula (fused shin), tarsals, metatarsals, and phalanges (toes); elongated for leaping.​

Distinctive Features:

Showcases adaptations for leaping (long hind limbs, fused bones).

The chart may note differences with human skeletons, functional roles (jumping, burrowing), and evolutionary significance.​

Skull hyperossification and absence of neck/tail are sometimes explained for advanced study.​

This chart is ideal for supporting lessons on amphibian anatomy, comparative vertebrate structure, and the role of skeletal adaptations in locomotion and survival.