Week 2 - WET + DRY Flashcards
What kind of fibres pass through the corpus callosum?
Commisural
Label the rostrum, genu, body, splenium of the corpus callosum.
What thin sheet seperates the anterior horns of the two lateral ventricles?
Septum pellucidum
What is the main function of the hypothalamus?
Neuroendocrine role
More specificly :
Hormone production
Regulation of body tempurature
Regulation of behaviour/emotions
Where are the colliculi (a component of the midbrain) in relation to the pineal gland?
Inferior
What structures constitute the basal ganglia?
Caudate
Putamen
Globus Pallidus
Substantia Nigra
Sub-thalamic Nuclei
The internal capsule is made up of white or grey matter?
White matter (myelinated axons)
What is the name given to the fibres that connect the cerebral hemispheres with other parts of the brain?
Association
The internal capsule is made up of an anterior limb, genu and a posterior limb. Identify these on a diagram.
Which cerebral artery through one of its branches supplies the internal capsule?
Middle cerebral
in the midbrain, where would the red nucleus be in relation to the substantia nigra, anterior or posterior to it?
Posterior
Identify the part of the midbrain called as the cerebral peduncles. What fibres does it contain?
Projection -consist of efferent and afferent fibers uniting the cortex with the lower parts of the brain and with the spinal cord.
What fibres make up the pyramids of the medulla?
Motor fibres - corticospinal tract
List the features that can be used to identify the region of spinal cord each section comes from.
Cervical - mostly white matter
Thoracic - lateral horns in grey matter
Lumbar - process of elimination
Sacral -mostly grey matter
Which aspect of the spinal cord receives sensory nerve fibres?
Dorsal horn
From which aspect of the spinal cord do motor nerve fibres project?
Ventral horn
Why does the size of the ventral grey horn vary along the spinal cord (most noticeably in cervical and lumbar regions)?
What is the name of the hole in the middle of the spinal cord and what does it contain?
Central canal - CSF
Opening for Olfactory nerve.
Cribriform plate of ethmoid bone.
Opening for optic nerve.
Optic foramen/canal
Opening for occulomotor nerve
Superior orbital fissure
Opening for trochlear nerve
Superior orbital fissure
Opening for V1
Superior orbital fissure
Opening for V2
Foramen rotundum
Opening for V3
Foramen ovale
Opening for abducens nerve
Superior orbital fissure
Opening for facial nerve
Internal acoustic meatus
Opening for vestibulocochlear nerve
Internal acoustic meatus
Opening for glossopharyngeal nerve
Jugular foramen
Opening for vagus nerve
Jugular foramen
Opening for accessory nerve
Jugular foramen
Opening for hypoglossal nerve
Hypoglossal canal
Which of the cranial nerves have a parasympathetic component?
III, VII, IX, X
Which cranial nerve(s) are attached directly to the brain?
I, II
Which cranial nerve(s) are attached directly to the midbrain?
III, IV
Which is the only cranial nerve to arise from the posterior aspect of the brain?
IV
Which cranial nerve(s) are attached directly to the pons?
V
Which cranial nerve(s) are attached directly to the pontomedullary junction?
VI, VII, VIII
Which cranial nerve(s) are attached directly to the medulla?
IX, X, XI, XII
Which cranial nerve can be tested by the pupillary light reflex?
II, III
Which cranial nerve can be tested by touch over the surface of the cheek?
V2
What cranial nerve would you be testing if you asked the patient to stick their tongue out?
XII
