Brain and Neuroanatomy — Flashcards

Flashcard 121: Chorda tympani joins the _____ nerve & relays in submandibular ganglion

Answer: lingual

Flashcard 122: The cell bodies of _____-secreting neurons (from the posterior pituitary) originate primarily in the paraventricular nuclei of the hypothalamus

Answer: oxytocin

Flashcard 123: In accommodation reflex pathway, the afferent fibres from optic tract reach the _____ and finally end at the parastriate cortex

Answer: LGB

Flashcard 124: Layers of the cerebellum: Molecular layer - _____ and basket cells receive excitatory input from parallel fibers and form inhibitory synapses on Purkinje cells

Answer: Stellate

Flashcard 125: The primary visual (striate) cortex is divided into _____ (superior) and lingual (inferior) gyri via the calcarine fissure

Answer: cuneus

Flashcard 126: The embryonic brain flexure located at the level of the _____ (midbrain) is the cephalic flexure.

Answer: mesencephalon

Extra: The three main embryonic brain flexures are: 1. **Cephalic flexure**: Occurs at the level of the **midbrain** (mesencephalon). It creates the angle between the brainstem and the forebrain. 2. **Pontine flexure**: Occurs in the **hindbrain** (rhombencephalon) as a dorsal bend. 3. **Cervical flexure**: Occurs at the junction of the **hindbrain and the spinal cord**.

Flashcard 127: The two major outputs/ efferents of the basal ganglia are from _____ and substantia nigra pars reticulata

Answer: Globus pallidus interna

Flashcard 128: Layers of the cerebellum:_____ fibres end on the dendrites of granule cells and form complexes called as glomeruli

Answer: Mossy

Flashcard 129: Acoustic neuroma most commonly arises from the _____ division of 8th cranial nerve at the site of transition of central to peripheral myelin i.e. Obersteiner-Redlich zone.

Answer: vestibular

Flashcard 130: Layers of the cerebellum: Granular layer: _____ cells send inhibitory output to the granule cells

Answer: Golgi