Answer
Answer choices C (lungs) and D (kidneys) would not be visible in the median section. These two would only be visible in the frontal and transverse sections. The rest of the answer choices would be visible in all three sections: Median, frontal, and transverse.
Work Step by Step
The question states that the body has been sectioned into three planes (median, frontal, and transverse) at the level of each organ. A median plane divides the body into left and right parts. A frontal plane divides the body into front and back parts. A transverse plane divides the body into upper and lower parts. Six organs are mentioned.
(a) Urinary Bladder: The urinary bladder is in the hypogastric (pubic) region. At least part of it would be visible whether one used a median, frontal, or transverse section.
(b) Brain: The brain fills the cranial cavity. At least part of it would be visible whether one used a median, frontal, or transverse section.
(c) Lungs: The lungs are found in the thoracic cavity. There are two lungs, and each has its own pleural cavity within the thoracic cavity. Because there is a separate lung on both the left and right sides of the body, a median section would fail to reveal them. Both lungs would still be visible with a frontal or transverse section.
(d) Kidneys: The kidneys are found in the abdominopelvic cavity. There are two kidneys, one in the right lower quadrant and one in the left lower quadrant. Because there is a separate kidney on both the left and right sides of the body, a median section would fail to reveal them. Both kidneys would still be visible with a frontal or transverse section.
(e) Small intestine: Parts of the small intestine can be found in the six lower regions of the abdominopelvic cavity. This large organ would be at least partially visible whether one used a median, frontal, or transverse section.
(f) Heart: The heart can be found in the middle of the thoracic cavity, within the pericardial cavity. This organ would be at least partially visible whether one used a median, frontal, or transverse section.
