. Zoölogy [microform] : descriptive and practical. Zoology; Zoologie. I02 Practical Zoology. II. a. b. c. 5- head. As in the frog, there are two aortae, the right and left which unite posteriorly. * 4. Make out the following order of the heart's beat: — The contraction of the blood tubes leading to the auricles. The contraction of the auricles. The contraction of the ventricle. On each side of the heart appears the dark liver, consisting of two main lobes, connected by a cross-band. Search the liver to find the bile sac. 6. Under the left lobe of the liver is the stomach. 7. From the stomach t
. Zoölogy [microform] : descriptive and practical. Zoology; Zoologie. I02 Practical Zoology. II. a. b. c. 5- head. As in the frog, there are two aortae, the right and left which unite posteriorly. * 4. Make out the following order of the heart's beat: — The contraction of the blood tubes leading to the auricles. The contraction of the auricles. The contraction of the ventricle. On each side of the heart appears the dark liver, consisting of two main lobes, connected by a cross-band. Search the liver to find the bile sac. 6. Under the left lobe of the liver is the stomach. 7. From the stomach trace the intestine to the transverse vent under the tail. 8. Masses of eggs may be found in the ovary (if a female). 9. Find a large bladder near the pelvis. 10. Raise the liver to find the lungs; pull k -ard the neck, find the windpipe, and insert a blowpipe. By infiating, the lungs may be better seen. When the lungs are fully inflated, tie a string tightly around the windpipe; carefully remove the lungs, and hang them up to dry. When they are thor .ughly dry and firm, cut them across, and compare with the lungs of the frog and rabbit. 11. How does the turtle draw in its head? 12. How long does the heart beat after the head is cut off? THE SKELETON OF THE TURTLE. 1. Clean away the muscles and all soft parts. Boiling loosens the outer plates; these are parts of the skin, and not of the skeleton proper; they are called the epidermal plates. 2. When these plates are removed from the carapace, there appears a series of bones extending outward on each side; these are the ribs, very wide, and united by their edges. How many of these flattened ribs are ther2 ? 3. On looking at the inner surface of the carapace, the series of vertebrae will be found ; ?nd attached to the sides of the bodies of these vertebrae are the heads of the ribs. 4- Along the middle line of the outside of the carapace, between. Please note that these images are extracted from scanned page images that may have
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