B and T cells are:
Lymph nodes
Tonsils
Lymphocytes
Antibodies
The Correct Answer is C
A. Lymph nodes are secondary lymphoid organs where B and T cells can be activated, but they are not the cells themselves.
B. Tonsils are lymphoid tissues that help protect against pathogens, but they are not the cells themselves.
C. Lymphocytes are the correct answer. B cells and T cells are types of lymphocytes, which are white blood cells involved in the adaptive immune response.
D. Antibodies are proteins produced by B cells (specifically plasma cells) in response to pathogens, but they are not cells themselves.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Chyle drainage is not a function of the spleen. Chyle, a milky fluid rich in fats absorbed from the intestines, is transported by the lymphatic system — specifically through structures like lacteals and the thoracic duct — not the spleen.
B. Blood filtration is a key function of the spleen, as it removes pathogens and debris from the blood.
C. Destruction of old red blood cells occurs in the spleen, which acts as a graveyard for aging or damaged red blood cells.
D. Blood storage is also a spleen function; it can store blood and release it in case of hemorrhage or increased demand.
Correct Answer is B
Explanation
A. Carotid veins are not the primary veins for receiving lymph from lymphatic vessels. Carotid veins are associated with the head and neck, but they are not the main vessels where lymph drains.
B. Subclavian veins are the correct answer. The lymphatic system drains lymph into the subclavian veins at the junction of the internal jugular vein, where the lymphatic ducts (such as the thoracic duct and right lymphatic duct) empty into the bloodstream.
C. Brachial veins are associated with the upper arm and do not receive lymph from the terminal lymphatic vessels.
D. Pulmonary veins are responsible for carrying oxygenated blood from the lungs to the heart, not lymph.
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