Which substances are released to aid leukocyte chemotaxis by producing vasodilation and increased capillary permeability? 

What is the role of the protein p53 in the cell cycle? 

A patient with an infection has elevated levels of cytokines in their blood. What is the role of these cytokines in acute inflammation? 

Which of the following substances is released by activated platelets to recruit more platelets to the site of injury? 

What is the significance of increased sporadic DNA mutations in older adults? 

How can cancer-causing viruses contribute to cancer development? 

Which of the following is a characteristic of the adaptive immune system?

Which of the following is a common cause of rotator cuff injuries in the shoulder? 

Which part of the shoulder joint is often affected by degenerative diseases? 

A patient with seasonal allergies experiences symptoms upon exposure to pollen. What is the sequence of events leading to these symptoms?