LYMPHATIC AND IMMUNE SYSTEMS: Role of thymus gland and functions of the spleen

1.      As one ages, the thymus

a)      Enlarges

b)     Slowly shrinks

c)      Produces many diseases

d)     Becomes a tumor 

2.      There is a genetic mutation (DiGeorge Syndrome) characterized by loss or absence of thymus. What of the following cells you DON’T expect to find in the blood of patients carrying this disease?

a)      Red blood cells

b)     Platelets

c)      B cells

d)     T cells

e)      Neutrophils

3.      Which of the following organs is known to protect the body from infections

a)      The lungs

b)     The kidneys

c)      The thymus

d)     The heart

4.      The thymus is located

a)      Posterior to the heart

b)     Posterior to the sternum

c)      Posterior to the trachea

d)     Anterior to the stomach

5.      What of the following is (are) function (s) of the spleen? (check all that apply)

a)      Filters the blood

b)     Removes old red blood cells

c)      Stores platelets

d)     Stores white blood cells

e)      Fights infections

f)       Blood reservoir  

6.      The spleen is located

a)      In the left upper quadrant of the abdomen

b)     In the left hypochondriac region

c)      In the abdominal cavity

d)     Inferior to the diaphragm

e)      Posterior and lateral to the stomach

f)       All of the above are correct

7.      The thymus is responsible for T cells maturation while the bone marrow is responsible for B cells maturation.

a)      True

b)     False