NEET PG DENTAL EXAM

BRAIN

PONS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following is NOT a derivative of the mesencephalon?
A
Basal ganglia
B
Crus cerebri
C
Tectum
D
Tegmentum
Explanation: 

Detailed explanation-1: -The thalamus, subthalamus, and substantia nigra (SN) are not a part of the basal ganglia but serve essential functions for the network. The motor system controlled by basal ganglia is made of corticobulbar and subcortical structures, the gray matter of the spinal cord, cerebellum, and efferent nerves.

Detailed explanation-2: -Which one of following basal ganglia is derived from the diencephalon? The globus pallidus has its origin from the diencephalon.

Detailed explanation-3: -The metencephalon is the embryonic part of the hindbrain that differentiates into the pons and the cerebellum. It contains a portion of the fourth ventricle and the trigeminal nerve (CN V), abducens nerve (CN VI), facial nerve (CN VII), and a portion of the vestibulocochlear nerve (CN VIII).

There is 1 question to complete.