Question

For leukocytes to battle an infection, adhesion molecules are necessary including ________, which loosely bind leukocytes to the blood vessel wall slowing down their movement, and ________, which tightly attaches leukocytes to the blood vessel wall in preparation for diapedesis.

A) integrin : spectrin
B) spectrin : selectin
C) selectin : integrin
D) spectrin : integrin
E) integrin : selectin

Answer 1

Selectins loosely bind leukocytes to the blood vessel wall, slowing down their movement, while integrins tightly attach leukocytes to the blood vessel wall in preparation for diapedesis.

Step-by-step explanation:

The adhesion molecules necessary for leukocytes to battle an infection include selectins, which loosely bind leukocytes to the blood vessel wall, slowing down their movement, and integrins, which tightly attach leukocytes to the blood vessel wall in preparation for diapedesis.