After the ovaries, this structure is the second most common site of malignant germinomas, and the Fra-2 protein controls NGFB-1 expression in this structure.
After the ovaries, this structure is the second most common site of malignant germinomas, and the Fra-2 protein controls NGFB-1 expression in this structure. Arylalkylamine-N-acetyltransferase controls the rate-limiting step of hormone production in this organ. An organelle called the synaptic ribbon exists in its namesake cells, and like the retina, this organ also expresses phosducin and opsin. Along with the habenula, it forms the epithalamus. It contains the corporea arenacae, which are calcified deposits that show up on skull X-rays, and it is light-sensing in reptiles and birds. For 10 points, name this melatonin-producing gland in the brain, which is named for its conical shape.
After the ovaries, this structure is the second most common site of malignant germinomas, and the Fra-2 protein controls NGFB-1 expression in this structure.
{pineal} gland or {epiphysis cerebri}