BS2

The tectum of the midbrain houses four rounded prominences called colliculi. Where are they located in relation to the pineal gland?
superiorly
medially
inferiorly
laterally
The colliculi of the midbrain are separated by which structure?
substantia nigra
cruciform sulcus
oculomotor nerve
Trochlear nerve
The interpeduncular fossa separates which two structures?
Cerebral peduncles
superior or inferior colliculi
Cerebellar peduncles
Pars reticulata and pars compacta
The pons develops from which part of the primitive brain?
Telencephalon
Diencephalon
Mesencephalon
Metencephalon
 
Which of the following structures lies posteriorly to the pons?
Cerebrum
Cerebellum
Midbrain
Medulla
Which of the following cranial nerves does NOT originate from the pons?
CX IV-Trochlear
CX V-Trigeminal
CX VI-Abducens
VII-Facial
Ion channels are open in response to...?
Depolarisation
Repolarisation
Changes in membrane potential
Stimulation of Axon hillock
None of the above
What ion changes the membrane potential ?
Potassium ion
Calcium ion
Sodium ion
Chloride ion
Where is the first order neuron of the Dorsal-Column Medial Lemniscus pathway located?
Anterior column
Dorsal root ganglion
anterior root
grey matter
All the above
The gracile and cuneate fasciculus are involved in which pathway?
Dorsal-column medial lemniscus pathway
Lateral spinothalamic tract
Lateral corticospinal tract
Anterior spinothalamic tract
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