Lymphocyte origin/activiation, Effector vs Memory, Antigen

Question 1

All lymphocytes originate in () bone marrow
Mature in primary lymphatic organs
-Thymus gland (_ lymphocytes)
-Bone Marrow (_ lymphocytes)

Maturation involves two processes
(): “threat recognition” – learn to Recognize a particular antigen
(-): lymphocytes must not kill own cells
Young T/B cells then travel to () lymphatic organs (i.e. spleen, lymph nodes) to encounter antigen

Answer 1

red
T
B
Immunocompetence
Self-Tolerance
secondary

Question 2

(): any substances that can provoke an immune response
-Pathogens (microorganisms)
-() (pollen/foods)

Answer 2

Antigens
Allergens