Frog External And Skeletal 4o731j

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Frogs (% sp., Ranidae) and toads ( sp., Bufonidae)

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gailess, except during one stage in their development

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g o types of respiration: cutaneous respiration and bucco-pharyngeal respiration

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Únternal organs arranged the same ay as those of the human body.

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{ Údentify various organ-system of the frog Kno

the various organ parts of each system Correlate structure-organ ith function

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Flattened head

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Elongated, slightly cylindrical body

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No neck or tail

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înout aouth Nostrils or external nares

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Eyes xpper and lo er eyelids Nictitating membrane Bro spot

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gympanic membrane or ear drum

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Jnus îacral hump Jnterior limbs (forelimbs)

xpper arm Forearm Wrist Hand ith digits



ghigh îhank Jnkle Foot ith digits + eb

Ôosterior limbs (hindlimbs)

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Bones and cartiliges

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Functions Frame ork of the body îupports and protects organs Jttachments of muscles

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Ôrotects and encloses the brain

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Ôrotects sense organs (eyes, ears, nares, tongue)

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Flat bone ith upper ja fused ith it

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×-shaped bone

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Right and left half are of the same parts

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Jrticulates ith the skull at its posterior ends

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Cartiliginous basilingual plate lying on the floor of the mouth cavity

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îupports the tongue

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Backbone

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îeries of bones or vertebra from the base of the skull and the hole back

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îeries of bones in the breast and shoulder region

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Firm for the forelimb

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îeries of bones in the midventral portion of chest

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Breast bone

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Responsible for the ability to locomote

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aovable articulating bones

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Jttached to the pectoral girdle

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Fusion of 6 bones

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Jrticulates ith the transverse process of sacral vertebra at one end and ith femur at opposite end

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Jlso for locomotion

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Composed of movable articulating bones

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Jttached to the pelvic girdle