Costocervical trunk
| Costocervical trunk | |
|---|---|
Superior intercostal artery | |
| Identifiers | |
| Latin | truncus costocervicalis |
| TA98 | A12.2.08.059 |
| TA2 | 4607 |
| FMA | 10636 |
| Anatomical terminology] | |
The costocervical trunk arises from the upper and back part of the second part of
Passing backward, it splits into the
As it crosses the neck of the first rib it lies medial to the anterior division of the first
In the first intercostal space, it gives off a branch which is distributed in a manner similar to the distribution of the aortic intercostals.
The branch for the second intercostal space usually joins with one from the highest aortic intercostal artery.
This branch is not constant, but is more commonly found on the right side; when absent, its place is supplied by an intercostal branch from the aorta.
Each intercostal gives off a posterior branch which goes to the posterior vertebral muscles, and sends a small spinal branch through the corresponding intervertebral foramen to the medulla spinalis and its membranes.
Branches
- Deep cervical artery
- supreme intercostal artery
References
This article incorporates text in the public domain from page 585 of the 20th edition of Gray's Anatomy (1918)
