Question

Genu and splenium are
A) Anterior and posterior ends of corpus callosum
B) Posterior and anterior ends of corpus callosum
C) Anterior and posterior ends of corpora striata
D) Posterior and anterior ends of corpora striata

Answer 1

Hint: Genu and splenium are associated with the brain. They are only found in placental mammals.

Complete Answer:
The term Genu and splenium are associated with the cerebrum of the brain. It is the largest structure of the human brain called the white matter. It is a wide, thick nerve tract which consists of flat bundles which are found beneath the cerebral cortex.
- The nerve tracts connect the different parts of the hemisphere of the brain. Genu, the rostrum, the trunk or body and the splenium forms the corpus callosum.
- The front part or the anterior part of the corpus callosum towards the frontal lobe is called the Genu.
- The thinner part of the corpus callosum is the rostrum.
- The end part or the posterior part towards the cerebellum is called the splenium.
- The trunk or the body lies in between Genu and splenium.
- Corpora striata is the grey matter present in the cerebral hemisphere. It is also called a paracoel.

Thus the correct answer is A. Genu and splenium are anterior and posterior end of corpus callosum.

Note: Corpus callosum consists of millions of axons that interconnect two hemispheres. The splenium connects the temporal and the occipital lobes of the hemispheres. Genu connects the frontal lobes of the left and right hemisphere.