Digested fats enter the lymphatic circulation through special capillary vessels called:
Lacteals
Peyer patches
Kupffer cells
Lymph capillaries
The Correct Answer is A
A. Lacteals are specialized lymphatic capillaries located in the villi of the small intestine. They absorb digested fats (in the form of chylomicrons) and transport them into the lymphatic system, eventually entering the bloodstream.
B. Peyer patches are clusters of lymphoid tissue found in the small intestine, important for immune surveillance, but they are not involved in fat absorption.
C. Kupffer cells are specialized macrophages in the liver that filter blood, not involved in lymphatic fat transport.
D. Lymph capillaries generally collect interstitial fluid to form lymph, but lacteals are the specific type of lymph capillary responsible for absorbing dietary fats.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["A","D"]
Explanation
A. Transfer through the placenta or breast milk is a form of naturally acquired passive immunity, where antibodies are passed from mother to child without the child's immune system having to produce them.
B. Inflammation is part of the innate immune response and not related to passive immunity.
C. Vaccination with an antigen involves stimulating the body to produce its own immune response, which is active immunity, not passive.
D. Administration of antiserum provides artificially acquired passive immunity, where pre-formed antibodies are given to an individual for immediate protection.
E. Tears and saliva are part of the innate immune system (first line of defense) and are not considered forms of passive immunity.
Correct Answer is B
Explanation
A. Inguinal nodes are located in the groin area, not in the knee.
B. Popliteal nodes are located behind the knee (in the popliteal fossa) and are responsible for filtering lymph from the lower leg and foot.
C. Tibial nodes are not a specific term used for lymph nodes in the knee area.
D. Mesenteric nodes are located in the abdomen and are associated with the digestive system, not the knee.
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