It is called central vascular catheterization
<h3>Importance of catheterization</h3>
Catheterization is defined as the use of medical devices that can be inserted into the body and used for different medical purposes.
Vascular catheterization is a peripheral catheterization that is used to detect certain upper and lower peripheral extremity conditions.
There are different types of vascular catheterization which include:
- Arteriovenous (AV) fistula,
- Arteriovenous (AV) graft and
- Central venous catheter (CVC)
Central vascular catheterization involves Introducing a vascular catheter directly into a vessel without further advancement past the punctured vessel.
Learn more about catheterization here:
brainly.com/question/3911876
Answer: It's not blocked
https://www.khanacademy.org/science/high-school-biology/hs-human-body-systems/hs-body-structure-and-homeostasis/a/tissues-organs-organ-systems