Diagram Both the arteries and veins have these three layers – it is more prominent in the arteries, especially the large and medium arteries and less defined in the veins. The tunica medica, which is the very muscular middle layer in arteries, is thinner and less muscular in veins. The ve...
Theinfraorbital veinis formed by several veins that drain theface. It enters the infraorbital foramen and, along with theinfraorbital arteryand nerve, passes posteriorly through theinfraorbital canaland groove. It receives branches from some structures in the inferior part of the orbit and may com...
Word History:The changed meaning of the wordarteryprovides a glimpse into the history of medical science. The word is derived from the ancient Greekartēriā,a word originally applied to any of the vessels that emanated from the chest cavity, including arteries, veins, and the bronchial tubes. ...
In recent years, a clearer understanding of how these patterns form and the molecules that regulate patterning has begun to emerge. Anatomists for years have appreciated the fact the nerves, arteries and veins are found in close proximity. However, an elegant study by Martin and Lewis in ...
The word is derived from the ancient Greek artēriā, a word originally applied to any of the vessels that emanated from the chest cavity, including arteries, veins, and the bronchial tubes. The difference in the functions of these vessels was not yet known; because they were all empty in ...
This space contains the brachial artery, with its accompanying veins; the radial and ulnar arteries; the median and radial nerves; and the tendon of the Biceps brachii. The brachial artery occupies the middle of the space, and divides opposite the neck of the radius into the radial and ulnar...
The mechanism diagram. Positive feedback was noted between miR-19b and TNF-α. miR-19b was significantly downregulated following 24 h of TNF-α treatment. The down-regulation of miR-19b alleviated its inhibition of TNF, which is the target gene of miR-19b, resulting in increased TNF-α...
Potential grafts include the two saphenous veins of the lower extremities, the two internal thoracic arteries under the sternum and the single gastroepiploic artery in the upper abdomen. Thus, in general clinical practice, there are five vessels available to use in this procedure over the life of...
veins (seeFig. 119.16) or by a side-to-side anastomosis between the two vena cava segments (not shown). The recipient structure(s) receiving the donor suprahepatic IVC can be the cuff of all three hepatic veins, the righthepatic veinalone, or the junction of the middle and left hepatic...
artery to span the entire diameter of the main artery. The transducer described in the copending application can also be passed from the main artery into a branch artery for measurement of the blood flow in the branch artery, and it can also be used in the veins, and other tubular organs...