Which of the following cartilages is largest?

A. Liver: The liver is a large, reddish-brown organ in the right upper quadrant of the abdomen, just beneath the diaphragm. If the diagram is pointing to this area, especially the largest solid organ on the right side, it matches the liver’s location and size.

B. Stomach: The stomach is located mainly in the left upper quadrant, inferior to the diaphragm and to the left of the liver. It is smaller and has a J-shaped structure, so it would not match if the pointer is on the large right-sided organ.

C. Spleen: The spleen is located in the left upper quadrant, lateral to the stomach and posterior to the rib cage. It is much smaller than the liver and not in the right-sided position indicated.

D. Diaphragm: The diaphragm is a dome-shaped muscle that separates the thoracic and abdominal cavities. If the pointer is on the muscle just beneath the lungs, it would be the diaphragm, but here it’s on a large organ, not a muscle.

A. Oropharynx: The oropharynx is the middle section of the pharynx, located posterior to the oral cavity and extending from the soft palate to the epiglottis.

B. Nasopharynx: The nasopharynx is the uppermost part of the pharynx, located posterior to the nasal cavity and above the soft palate. The highlighted structure in the image lies just behind the nasal cavity and in front of the cervical spine, matching the location of the nasopharynx.

C. Hypopharynx: The hypopharynx (laryngopharynx) is the lower part of the pharynx, located below the oropharynx and above the esophagus, behind the larynx.

D. Esophagus: The esophagus is the muscular tube that carries food from the pharynx to the stomach. It lies inferior and posterior to the larynx and trachea.