Common carotid angiogram, lateral view (a) and AP view (b)
- arrows indicate the ECA
Axial cut through dotted line in figure (b) above
- CS = carotid space (inside is ICA and JV, jugular vein and CN 9, 10, 11, 12) 126 more words
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Counter-rotating gears have been found in nature for the first time—and they help make these insects faster than fighter pilots.