Which of the following is a component of the lymphatic system?
Spleen
Thyroid gland
Adrenal gland
Pancreas
The Correct Answer is A
A. The spleen is a key component of the lymphatic system. It filters blood, removes old or damaged blood cells, and plays a role in immune function by storing white blood cells that fight infection.
B. The thyroid gland is an endocrine gland involved in regulating metabolism through the production of thyroid hormones, but it is not part of the lymphatic system.
C. The adrenal glands are also endocrine glands responsible for producing hormones like adrenaline and cortisol. They are not part of the lymphatic system.
D. The pancreas is an organ involved in digestion and blood sugar regulation through insulin production. It does not function within the lymphatic system.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. The trachea is the windpipe that carries air to the lungs. While it plays a role in respiration, it does not protect the airway during swallowing.
B. The epiglottis is a flap of cartilage that covers the trachea during swallowing, preventing food or liquid from entering the airway and directing it to the esophagus.
C. The uvula is part of the soft palate that helps in the swallowing process but does not directly protect the airway. It assists in preventing food from entering the nasal cavity.
D. The pharynx is the passageway for both air and food, but it does not provide protection to the airway during swallowing. The epiglottis is the main structure responsible for this protection.
Correct Answer is A
Explanation
A. The frontal lobe is responsible for higher cognitive functions, including emotional regulation, problem-solving, decision-making, and controlling emotional responses. A frontal-lobe injury can impair emotional stability, making it difficult for the individual to manage emotions appropriately. This is the correct answer.
B. Speech comprehension is primarily associated with the temporal lobe, particularly in areas like Wernicke’s area, not the frontal lobe.
C. Vision is processed in the occipital lobe, so a frontal-lobe injury would not typically affect vision.
D. Swallowing involves motor control that is often linked to the brainstem, not the frontal lobe.
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