Neuroanatomy Flashcards
Which structure connects the two cerebral hemispheres?
Corpus callosum
What structures does the central sulcus separate?
Frontal and parietal lobes
Which structures does the lateral sulcus separate?
Frontal and parietal lobes from the temporal lobe
Where is the primary motor cortex found?
Pre central gyrus
Where is the primary somatosensory cortex found?
Post central gyrus
What is the role of the superior temporal gyrus?
Reception and processing of sound
Where is the primary auditory cortex located?
Temporal lobe
Where is the primary visual cortex located?
Occipital lobe
Which embryological structure is the cerebrum derived from?
Prosencephalon
Name the layer of dura matter which separates the cerebrum and cerebellum
Tentorium cerebelli
Name the structures which connects the two cerebellar hemispheres
Vermis
Which cranial nerve supplies the dura of the brain?
Trigeminal nerve
What is the embryological origin of the olfactory nerve?
Olfactory placode
Where is the primary olfactory cortex located?
Uncus of the temporal lobe
What hormone does the pineal gland secrete?
Melatonin
Which part nuclei of the basal ganglia are found on the lateral wall of the lateral ventricle?
Caudate nucleus
Which structure separates the caudate nucleus and the putamen?
Internal capsule
Name the part of the sphenoid bone that the pituitary gland is located within
Sella turcica
Name the fold of dural matter which covers the pituitary superiorly
Diaphragma sellae
Which cranial nerves pass through the superior orbital fissure?
Oculomotor
Trochlear
Ophthalmic
Abducens
Which cranial nerve passes through the foramen rotundum?
Maxillary branch of CN V
Which cranial nerve passes through the foramen ovale?
Mandibular branch of CN V
Which cranial nerves pass through the internal acoustic meatus?
Facial
Vesibulocochlear
Which cranial nerves pass through the jugular foramen?
Glossopharyngeal
Vagus
Accessory
Which nerve supplies superior oblique?
Trochlear
Which nerve supplies lateral rectus?
Abducens
Which nerve supplies the carotid body and sinus?
Glossopharyngeal
Which nerve supplies the parotid gland?
Glossopharyngeal
Which muscles are supplied by the accessory nerve?
SCM
Trapezius
Which extrinsic tongue muscle is not suppled by the hypoglossal nerve?
Palatoglossus
Where do fibres from the dorsal columns decussate?
Medulla
Where do fibres of the spinothalamic tracts first synapse?
Substantia gelatinosa in the dorsal horn
Where do spinothalamic fibres decussate?
1-2 spinal levels above origin in spinal cord
Which is information is transmitted by the anterior spinothalamic tract?
Crude touch and pressure
Which is information is transmitted by the lateral spinothalamic tract?
Pain and temperature
Which infection cna cause injury to the dorsal columns?
Syphilis (tabes dorsalis)
What spinal level does the common carotid artery bifurcate?
C4
The vertebral arteries are a branch of which artery?
Subclavian
Which arteries are found in the foramen transversarium of the cervical vertebrae?
Vertebral arteries
Which two vessels form the basilar artery?
Left and right vertebral arteries
Name the structures which pass through the cavernous sinus
CN III, IV, V1, V2, VI
Carotid plexus
Internal carotid artery
What route is commonly the cause of spread of infection from extracranial to intracranial structure?
Anastomosis between facial vein and superior ophthalmic veins
Which structure produces CSF?
Choroid plexus
Which structure connects the lateral ventricles to the third ventricle?
Foramen of Monro
Which structure connects the third and fourth ventricles?
Cerebral aqueduct
Where is the choroid plexus found?
Lining of the cerebral ventricles
