What Is the Median Cubital Vein?
Median cubital vein: One of the superficial veins of the forearm. This vein is short and thick with many changes. It is usually connected to the guinea vein and cephalic vein at the cubital fossa. This type of Chinese people account for the vast majority; sometimes the forearm median vein is also accepted. The forearm median vein can be bifurcated and injected into the Guiyang vein and the cephalic vein. At this time, there is no median elbow vein. The median elbow vein is one of the puncture sites for clinical transfusion and fluid replacement.
- Chinese name
- Median cubital vein
- Foreign name
- median cubital vein
- Nature
- More variation
- Location
- From the scalp vein below the cubital fossa
- Median cubital vein: One of the superficial veins of the forearm. This vein is short and thick with many changes. It is usually connected to the guinea vein and cephalic vein at the cubital fossa. This type of Chinese people account for the vast majority; sometimes the forearm median vein is also accepted. The forearm median vein can be bifurcated and injected into the Guiyang vein and the cephalic vein. At this time, there is no median elbow vein. The median elbow vein is one of the puncture sites for clinical transfusion and fluid replacement.
1 Median Elbow Vein 1. Anatomy of Median Elbow Vein:
- It is separated from the cephalic vein slightly below the cubital fossa, and is connected to the Guiyang vein diagonally inward and upward. In the cubital fossa, this vein is superficial in position and has a large diameter. The outer diameter is 0.2 (0.1 to 0.5) cm in children and 0.35 (0.1 to 0.9) cm in adults. It has a relatively constant communication branch connected to the deep veins, and it is not accompanied by nerves. It is clinically used as an ideal site for venipuncture. The median elbow vein is sometimes large, and all or most of the blood from the cephalic vein can be drained to the expensive vein, causing the upper segment of the cephalic vein to disappear or be small. The median elbow vein is mostly one, and there may be two or absent. There is also a medianantebrachialvein in the forearm, which originates from the palm venous plexus, and may have 1 to 4 branches, or it may be absent. Along the palmar side of the forearm, the cephalic vein rises between the guinea veins, and the end is injected into the cephalic vein or guinea veins. Sometimes it is divided into two branches in the shape of a fork below the cubital fossa, which are connected to the cephalic vein and the guiyang vein, respectively. At this time, the superficial cubital fossa veins are "M" shaped.
2 Median Elbow Vein 2. Variation Types of Median Elbow Vein:
- The variant classification is divided into the following six types: Type I, the cephalic vein borrows a median elbow vein from the cubital fossa to connect to the Guiyang vein: type II, the "Y" forearm is borrowed between the cephalic vein and the Guiyang vein The median vein, cephalocervical vein is connected to the Guiyuan median vein, or it is in the shape of an "M". The median vein is connected to the Guiyuan median vein; Type III, there is no vein in the cubital fossa between the cephalic vein and the Guiyuan vein: Type IV, the mainstream of the forearm cephalic vein is drained to the guinea vein and connected to the cephalic vein of the upper arm with thin branches; type V, the cephalic vein of the forearm is injected into the cubital fossa of the guinea vein without communicating with the cephalic vein of the upper arm; Type, the vein and the guiyang vein are connected in the cubital fossa by 2 cubital median veins. The length is from the origin of the cephalic vein to the point where the expensive vein is injected; the diameter needs to be measured at the outer diameter of the beginning, middle and end.