Final answer:
The transition stage between the anagen and telogen phase of hair growth is called catagen. During this phase, the hair follicle stops growing and detaches from the blood supply, leading to the cessation of hair growth.
Step-by-step explanation:
The transition stage between the anagen and telogen phase of hair growth is called catagen. During this phase, the hair follicle stops growing and detaches from the blood supply, leading to the cessation of hair growth. The catagen phase lasts for about 2 to 3 weeks before the telogen phase begins.