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Frog Anatomy
| Question | Answer |
|---|---|
| Bullfrog | Lithobates Catesbeiana/ Chordata Vertebrata |
| Tongue | |
| vomerine teeth/ maxillary teeth | |
| internal nares | |
| Eustachean tube | |
| tympanic membrane | |
| opening of the esophagus | food descends into the stomach |
| larynx | |
| glottis | entry to the trachea |
| integument | skin |
| subcutaneous lymph sinuses | contain fluid called lymph/ some respiration occurs here |
| coelomic cavity/ viscera | |
| heart/ pericardium | membranous sac surrounding the heart |
| liver | three-lobed/ produces bile |
| lungs | |
| gall bladder | stores bile |
| stomach | cardiac portion (anterior)/ pyloric portion (posterior) |
| pyloric sphincter | constriction where the stomach joins the intestine |
| small intestine/ ileum/ colon | 10-12cm; site of nutrient absorption/ remainder of the small intestine/ large intestine |
| small intestine/ ileum/ colon | 10-12cm; site of nutrient absorption/ remainder of the small intestine/ large intestine |
| duodenum | first portion coming off of the stomach; receives the ducts from the liver and pancreas |
| mesentery/ visceral peritoneum/ parietal peritoneum | entire digestive tract is suspended from the dorsal body wall by this/ where mesentery surrounds internal organs |
| mesentery/ visceral peritoneum/ parietal peritoneum | entire digestive tract is suspended from the dorsal body wall by this/ where mesentery surrounds internal organs/ thin lining of the coelomic cavity |
| pancreas | source of enzymes for digestion and hormones for regulating blood glucose levels |
| kidneys | maintain the salt/water balance of the body fluids |
| adrenal glands | source of the hormones epinephrine, norepinephrine and aldosterone |
| urinary bladder | end site where urinary duct extends from the lateral margin of each kidney |
| fat bodies | stored fats facilitate winter hibernation and the development of eggs and sperm in spring |
| ovaries/ eggs/ oviducts | |
| testes | |
| pericardium | thin membrane that surrounds the heart |
| sinus venosus | blood returning from the body passes through this into the right atrium |
| HEART DIAGRAM | |
| Right/left anterior vena cava/ posterior vena cava | origin at the renal veins |
| spleen | sequestering of new red blood cells and removal of old ones |
| CNS DIAGRAM | |
| cranial nerves/ spinal nerves | 10 pairs |
| brachial plexus | 1, 2, 3 spinal nerves interconnected --> forelimb and shoulder region |
| sciatic plexus | 7, 8, 9 spinal nerves interconnected --> legs |
| LEG MUSCLE DIAGRAM | |
| thigh | |
| triceps femoris | extend the shank (lower leg) |
| sartorius | adducts the leg (pulls it toward the abdomen) |
| adductor magnus | adduct the thigh |
| gracilis major/ gracilis minor/ semimembraneous/ biceps femoris | extending the thigh and flexing the shank |
| gastrocnemius | extends the achilles |
| tibialis posticus | inserts at the ankle and helps extend the foot |
| peroneus/ tibialis anticus longus | flexes the foot |
| antagonistic | opposite |
| rectus abdominis | |
| external oblique | support the internal organs and reduce the trunk dimensions during expiration |
| pectoralis | adducts, flexes, and rotates the forelimb |
| mylohyoid | raise the floor of the mouth during respiration |
| axial skeleton | skull, vertebral column, sternum |
| skull | cranium, visceral skeleton |
| foramen magnum | spinal cord passes through this |
| occipital condyles | |
| hyoid apparatus/ columella | |
| urostyle | |
| pectoral girdle | suprascapula, scapula, clavicle, |
| forelimb | humerus (upper arm bone), radio-ulna (forearm bone), carpals (wrist), metacarpals (palms), phalanges |
| pelvic girdle | ilium, ischium, pubis (meet at the acetabulum) |
| hindlimb | femur (thigh bone), tibiofibula (shank bone), tarsals (ankle), metatarsals (sole), phalanges |
Created by:
nwmoser
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