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28 Cards in this Set
- Front
- Back
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What does amphibian mean?
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double life
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Cold/Warm Blooded?
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cold blooded
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Breathe through ______ and live in(on)______ when immature.
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- gills
- water |
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Breathe through ______ &______ and live on ______ as adults
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- lungs & moist skin
- land |
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Mouth (2)
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- large opening at anterior end
- has upper & lower jaw |
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Nostrils (1)
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- external & internal opening above mouth through which organism breathes
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Eyes (3)
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- (2) one on each side
- has upper & lower eyelid - 3rd transparent eyelid that protects eye while swimming, still allowing it to see |
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Eardrum (3)
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- (2) typanum
- round membrane behind each eye - larger in males to hear female mating call |
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Forelimbs (3)
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- (2) short limbs in the front of body
- help provide support - contain "hand" |
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Hindlimbs (3)
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- long jumping limbs
- longer than rest of body - contain "foot" (2) |
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Tongue (2)
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- attached at opening (front)
- flips out to catch prey & flips back in to deliver food |
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Teeth (2)
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- (2 types)used to grasp prey
- frogs don't chew |
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Fat Bodies (5)
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- 2 yellowish organs
- cluster of fingerlike lobes - near anterior end of each kidney - towards back & posterior end - used for storage of fat that is used during hibernation |
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Liver (6)
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- 3 reddish brown organs
- located in visceral cavity (chest region) posterior to heart - serves as filter for blood - makes bile - largest organ - helps in digestion but food never passes here |
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Gall Bladder (4)
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- greenish sac
- between lobes of liver - stores bile - helps in digestion but food never passes here |
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Stomach (4)
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- whitish organ
- under left lobe of liver - digests food - muscular |
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Small Intestine (3)
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- small tubular extension of the digestie tract
- area for final digestion & absorption of nutrients, NOT WATER - long & skinny |
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Large Intestine (4)
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- following small intestine
- extends to pelvic region - terminates at cloaca - stores wastes & removes water |
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Kidney (3)
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- 2 elongate reddish organs
- dorsal wall of visceral cavity - excretory organs for elimination of liquid wastes & water balance |
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Spleen (3)
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- reddish brown spherical
- posterior & dorsal to stomach - filter for removal of red blood cells |
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Lungs (4)
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- 2 reddish purple sacs
- either side of heart - dorsal to liver - provides oxygen to blood |
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Heart (5)
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- reddish
- 2 atria & 1 ventricle - enclosed within pericardial sac - pumps blood - 3 chambers |
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Mesentery (2)
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- transparent sheet attaching the intestine to the body wall
- holds the organs (mostly digestive system) in place |
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Cloaca (3)
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- terminal portion of the large intestine
- passes the liquid & solid waste - releases eggs/sperm |
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Testes (3)
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- (males) 2 yellow bean-shaped
organs - anterior portion of kidneys - make & release sperm |
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Ovaries (4)
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- (females) 2 large sacs
- gravid- often packed w/ black & white eggs - not gravid- ribbonlike ovaries attached near fat bodies - anterior end of kidneys |
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Why must amphibians live in moist areas?
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- eggs must stay moist (no hard shell)
- breathe through lungs & skin |
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Skin contains many ________ & lack _______ & ________.
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- glands
- scales and claws |
