Anat 312 - Lecture 1

the seven divisions of the CNS
- cerebral hemispheres
- diencephalon
- midbrain
- pons
- medulla
- cerebellum
- spinal cord
Telencephalon
- 2 cerebral hemispheres separated by the sagital fissure
- transverse fissure - separates cerebellum
- lateral sulcus - parietal from temporal lobe
- central sulcus (pre and post central gyri) for motor and sensory functions (sortex)]
- parietooccipital slucus (separates parietal from occipital)
- pre occipital notch (sepraates...
- calcarine sulcus
- cingulate sulcus
- basal ganglia (caudate nucleaus, lentiform nucleus)
- amygdala (on tip of caudate)
white and grey matter
- grey matter- found in outer cortex and is neuronal cell bodies (gyri create more area for grey matter)
- white matter- mylenated axons which carry and communicate signals
- association fibres (short-communicate within a hemisphere, long- communicate between lobes)
- commisural fibres (corpus callosum genu long body and splenium connect the 2 hemispheres together)
- projection fibres (connetc the telencephalon with lowere cns structures (they run vertically)
Diencephalon
- thalamus
- hypothalamus - connects with the pituitary gland
- epithalamus - connects with the pineal gland
- subthalamus
brain stem
- midbrain -
- pons - connected in front of the cerebellum (made from same embryonic tissue but has a unique function)
- medulla - foramen magnum separates from the spinal cord (pyramids and olives)
cerebellum

made from same embryonic tissue as the pons

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Anat 312 - Lecture 1

Description

general organization of the CNS

Updated

2011-09-13T20:00:43Z

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