Third and fourth ventricles of the brain are connected by
aqueduct of Sylvious
foramen of Monro
foramen of Magnum
corpus callosum
A.
aqueduct of Sylvious
The connecting passage between III ventricle (diocoel), IV ventricle and optocoels (cavities of optic lobes) is called aqueduct of sylvius. Foramen of Monro connects lateral ventricles with III ventricle or diocoel.
Among the following characteristics, indicate the correct combination applicable to conditional reflex.
I. Acquired by practice or learning
II. Non acquired by birth.
III. Does not abolish by lack of practice
IV. Participation of cerebral cortex
V. Originates spontaneously
I, II and III
I, II and IV
I and IV
II, III and V
Movement of tongue muscle is controlled by
facial nerve
trigeminal nerve
hypoglossal nerve
vagus nerve
Identify the origin of sympathetic nerve fibres and the location of their ganglia.
They arise from thoracolumbar region of spinal cord and form ganglia just beside the vertebral column
They arise from thoracocervical region of spinal cord and form ganglia just beside the vertebral column
They arise from cranio-sacral region of spinal cord and from ganglia very close to effector organ
They arise from thoracolumbar region of spinal cord and form ganglia very close to effector organ
Vegus nerve is a
mixed X cranial nerve
mixed XI cranial nerve
mixed X thoracic nerve
sensory X cranial nerve
During synaptic transmission of nerve impulse, neurotransmitter (P) is released from synaptic vesicles by the action of ions (Q). Choose the correct P and Q.
P - Acetylcholine; Q - Ca2+
P - Acetylcholine; Q - Na+
P - GABA; Q - Na+
P - Cholinesterase; Q - Ca2+
Which centre is stimulated during increase in body temperature?
Anterior hypothalamus
Posterior hypothalamus
Limbic system
Red nucleus
Which of the following substances can cure Parkinson's disease?
GABA
Acetylcholine
Dopamine
Glutamic acid
