Image Based Question – 74809

Which of the following projects efferent fibers through the marked structure?

A. Hippocampus

B. Mammillary body

C. Caudate nucleus

D. Amygdala

Correct Answer » A Explanation

Ans. A. Hippocampus

(Ref: Grays Anatomy, 41″‘ ed, pg. 439. Snell’s neuroanator?E 7h ed, pg. 310. Barr’s neuroanatomy, IAh ed”, pg. 273)

• The marked structure is fomix.
• The human fornix contains more than I million myelinated axons.
• Most of these axons originate in the subiculum.
• The rest of the axons originate in the hippocampus or are afferent to the hippocampal formation.