Question

Which of the following sequential barriers to metastasis is the easiest to overcome for cancer cells in general?

A. Vessel entry through acquisition of local invasiveness
B. Exit from the blood into a remote tissue or organ
C. Initial growth of cells in the foreign tissue
D. Persistence of growth in the remote site

Answer 1

The easiest sequential barrier to overcome for cancer cells in general is vessel entry through acquisition of local invasiveness.

Step-by-step explanation:

The easiest sequential barrier to overcome for cancer cells in general is vessel entry through acquisition of local invasiveness. Cancer cells can invade nearby tissues and gain access to blood vessels, allowing them to enter the bloodstream and spread to other parts of the body.