In a frog, the surface of attachment for the tongue is the:
Correct answer: B. Hyoid apparatus
- A. Pterygoid
- B. Hyoid apparatus
- C. Parasphenoid
- D. Palatine
Explanation
In an adult frog, gills disappear and their skeletal framework is also reduced to form hyoid apparatus. It lies below tongue in the floor of mouth and provides a surface of attachment to the tongue. Pterygoid contributes to the posteroventral margin of orbit of its side. Palatine connects the anterior side of cranium with the middle of the maxilla. Parasphenoid forms the floor of the cranium.
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Support and movement covers the axial and appendicular skeleton, bone structure, joints and the arrangement of skeletal muscles. Muscle contraction is explained through actin, myosin, sliding filaments, calcium ions and ATP, while arthritis is distinguished as a disorder of joints rather than a normal part of movement.
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