Flashcards in Week 2 - Wet Room Deck (16)
What are the parts of the Corpus callosum?
Rostrum -> Genu -> Body -> Splenium
What seperates the two anterior horns of the lateral ventricle?
Its a septum connecting the corpus callosum superiorly and fornix inferiorly
What is the fornix?
Fibres linking hippocampus to the mamillary bodies of the hypothalamus
Which one of the basal ganglia is visible as a bulging projection on the floor of the lateral ventricle?
What is the function of the thalamus?
Grey matter nuclei acting as a sensory relay centre.
E.g. most general sensory info goes to the Ventro-postero-lateral (VPL) nucleus of the thalamus
What is the function of the hypothalamus?
- Hormonal Control
- Blood Pressure
- Thirst and hunger
- Sex drive
- Circadian Rythms
Where does the stalk of the pituitary gland go?
It hangs down from the hypothalamus
What gland is part of the diencephalon?
Pineal Gland! Immediately posterior to the thalamus and superior to the coliculi
Learn the transverse section of the brain from the diagrams in the workbook
What is the internal capsule and what artery supplies it?
A white matter tract (Projection fibres)
Anatomically it seperates the basal ganglia an thalamus when seen on a transverse section.
Its made of an anterior and posterior limb connected by the genu
Supplied by middle cerebral artery
What basal ganglia is found in the midbrain and how does it relate to the red nucleus?
The red nucleus is anterior to the substantia nigra
What is found in the medial pons?
The medial leminiscus (carries sensory fibres) and the motor fibres of the pyramidal tract
What makes up the medulla's pyramids and olives?
Pyramids are CST fibres
Olivary Nuclei make up the olives
What are the 3 main coronal sections used in regards to the brain?
Anterior - Just ant to the optic chiasma
Middle - Just post to the optic chiasma
Posterior - Passes through the splenium (Posterior part of corpus callosum)
How do you differentiate transverse sections of the spinal cord?
Cervical and thoracic white matter is thin, whilst lumbar and sacral white matter is thicc.
Thoracic and sacral spinal cords have a lateral horn in their white matter for limb plexesus