The Brain Flashcards
General Features of the Brain
Features of the brain
Central suclus
Pre-central (motor cortex) and post-central (sensory cortex) either side of sulcus
Features of the brain
Longitudinal fissue
Contains anterior cerebral arteries
Features of the brain
Lateral fissue
Contains middle cerebral artery
Features of the brain
Lumps and grooves of folds
Each lump is a Gyrus
Each groove is a Sulcus
Cerebral Hemispheres
Median Sagittal Section of the Brain
Corpus Callosum
White matter tract connecting the cerebral hemispheres
Association tracts
Between gyri of the same hemisphere
Commisural tracts/fibres
From one hemisphere to the corresponding region of the other
Projection fibres
From cerebrum to thalamus, brainstem etc
Coronal Section through Brain
Basal Ganglia
Regulate initiation and termination of body movements.
Thought to be involved with memory, planning and emotional response.
Diencephalon
Thalamus
Major sensory relay station
Spinal cord, brainstem, midbrain to the thalamus then to cerebral hemispheres
Involved in motor pathways
Diencephalon
Hypothalamus
Regulation of autonomic nervous system and homeostasis
Produces hormones
Diencephalon
Pineal gland
Epithalamus - Produces melatonin to regulate body clock
Epithalamus also contains habenular nucles for olfaction and emotional response
Midbrain
Connects
Connects pons and medulla to diencephalon
Midbrain
Superior Colliculi
Visiual tracking and scanning