Which of the following is (are) true of the thymic lobules?
A) They are the site of the production of lymphocytes, but not of the T cells.
B) They contain lymphoid stem cells and thymic corpuscles.
C) They lack an internal structure of a cortex and a medulla.
D) They contain special capillaries that selectively acquire circulating antigens to pass through the tissues.
E) All of the answers are correct.
B) They contain lymphoid stem cells and thymic corpuscles.
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Which of the following does not control flexion of the hip?
A) adductor longus B) pectineus C) psoas major D) gluteus maximus E) adductor brevis
Osmotic pressure forces molecules in the blood out through capillary walls.
Answer the following statement true (T) or false (F)
Hypocalcemia can cause ________.
A. muscle weakness B. depression of the nervous system C. muscle spasms D. sluggish reflexes E. emotional disturbances
The beta cells of the pancreatic islets produce
A) insulin. B) glucagon. C) somatostatin. D) cortisol. E) peptide P.