Identify the organ circled in the image below. Note: you must include right or left as appropriate. Fill in the blank
The Correct Answer is {"dropdown-group-1":"A"}
Correct answer: Right lung
The right lung occupies the right side of the thoracic cavity, is typically larger and divided into three lobes (superior, middle, inferior), and in the image the circled pulmonary tissue on the subject’s right side corresponds to the right lung.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Submucosa: submucosa is connective tissue containing blood/lymph vessels and glands, not the epithelial lining.
B. Muscularis: muscularis is smooth muscle (inner circular/outer longitudinal layers) responsible for peristalsis, not epithelial.
C. Mucosa: the mucosa includes the epithelial lining, lamina propria, and may contain folds and mucus-secreting glands (e.g., gastric mucosa).
D. Serosa: serosa is the outermost connective tissue/mesothelial covering of the gut, not the epithelial absorptive/secreting layer.
Correct Answer is A
Explanation
A. The AV valves are closing: This occurs at S₁ (first heart sound) at the start of ventricular systole.
B. The semilunar valves are closing: Semilunar valves close at S₂ (second heart sound), not S₁.
C. The AV valves are opening: AV valves open during ventricular diastole (filling), not at S₁.
D. The semilunar valves are opening: Semilunar valves open during ventricular ejection (systole) but their opening is not what produces S₁.
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