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The thymus is located in the ,anterior to the aortic arch. The thymus reaches it

ID: 2915 • Letter: T

Question

  1. The thymus is located in the                          ,anterior to the aortic arch.
  2. The thymus reaches its greatest size during puberty andtends to decrease in size following               .

  3. As a person ages, the thymus tissue is often replaced by                                           .
  4. The lymphocytes of the thymus develop from precursor cells thatoriginated in the            .
  5. The hormone secreted by the thymus iscalled                                          .
  6. The                                      isthe largest of the lymphatic organs.
  7. Blood vessels enter the spleen through the region called the                                        .
  8. The sinuses within the spleen are filled with                                                .
  9. The tiny islands of tissue within the spleen comprise the                                           .
  10. The                                     ofthe spleen contain large numbers of red blood cells, lymphocytes,and macrophages.
  11.                                        within the spleen function to engulf and destroy foreignparticles.

Explanation / Answer

1.mediastinum 2.puberty 3.fat 4.multipotent cells of bone marrow 5.T3 and T4 hormones 6.spleen 7.pedicle 8.RBC 9.white pulp which has splenic nodules which containlymphocytes. 10.red pulp 11.macrophages hope it helps