Collateral Circulation
After ligature of the common carotid, the collateral circulation can be perfectly established, by the free communication which exists between the carotid arteries of opposite sides, both without and within the cranium, and by enlargement of the branches of the subclavian artery on the side corresponding to that on which the vessel has been tied.
The chief communications outside the skull take place between the superior and inferior thyroid arteries, and the deep cervical artery and the descending branch of the occipital artery; the vertebral artery takes the place of the internal carotid artery within the cranium.
Read more about this topic: Carotids
Famous quotes containing the word circulation:
“Thought reading is like the circulation of the blood. We are all thought readers only we don’t pay attention to it.”
—Samuel Butler (1835–1902)