The telencephalon region of the developing brain of a mammal
A)develops as the neural tube differentiates.
B)develops from the midbrain.
C)is the brain region most like that of ancestral vertebrates.
D)gives rise to the cerebrum.

Question

Quizplus · Accepted Answer

The telencephalon is the embryonic precursor of the cerebrum, which is the largest and most complex part of the mammalian brain. The telencephalon arises from the anterior part of the neural tube and undergoes extensive folding and differentiation to form the cerebral hemispheres. Therefore, choice D is correct. Choice A is incorrect because the telencephalon develops from the anterior part of the neural tube, not during neural tube differentiation. Choice B is incorrect because the telencephalon is located rostral (in front of) the midbrain. Choice C is incorrect because the telencephalon is the most recent addition to the vertebrate brain, and is more complex than the brain regions of ancestral vertebrates.

The Telencephalon Region of the Developing Brain of a Mammal