Fig. 2. Transcutaneous ultrasonographs of the small intestine of (A) fasting garter
snakes and (B) snakes 2 days after feeding. Both figures are parasagittal
images of the small intestine (the top of the image is cranial, the bottom is
caudal, left is ventral, right is dorsal). The ventral scales and the dorsal
aorta were used as morphological landmarks. The thickness of the mucosa was
measured as the distance between the two dark lines of the tunica muscularis.
v, ventral scales; a, dorsal aorta; si, small intestine mucosa; the arrows
indicate the tunica muscularis; *imaging artifacts. Scale, major
dimensions, 10 mm.
