Essential Anatomy

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2. Relative Coordinates. On the globe we discuss North, South, East and West.Lets investigate the directions for the mind.. 3. Various Choice. Which bolt focuses dorsally?RedGreenBlueRed and GreenNone of above. . . . 4. Different Choice. Which bolt focuses dorsally?RedGreenBlueRed and GreenNone of above.

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Slide 1

Essential Anatomy Chris Rorden Coordinates Cortex Brodmann Areas Common Names Talairach Coordinates Best site: www.anatomy.usyd.edu.au/glossary/www.mricro.com

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Relative Coordinates On the globe we discuss North, South, East and West. Lets investigate the directions for the mind.

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Multiple Choice Which bolt focuses dorsally? Red Green Blue Red and Green None of above

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Multiple Choice Which bolt focuses dorsally? Red Green Blue Red and Green None of above

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Orientation Human life systems depicted as though individual is standing If individual is resting, we would in any case say the head is better than feet.

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Orientation - creatures Cranial head Rostral nose Dorsal back Caudal tail Ventral gut

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Coordinates – Human dorsal/ventral and rostral/caudal contrast for mind and spine. H ead/F oot, S uperior/I nferior, A nterior/P osterior not questionable. Dorsal Ventral Dorsal Ventral

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Anatomy – Relative Directions sidelong < average > horizontal Posterior <> Anterior Ventral/Dorsal otherwise known as Inferior/Superior otherwise known as Foot/Head Ventral <> Dorsal Anterior/Posterior otherwise known as Rostral/Caudal Posterior <> Anterior

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coronal sagittal pivotal Coordinates - Anatomy 3 Common Views of Brain: Cor onal (head on) Sag ittal (profile) Ax ial (elevated), otherwise known as Transverse. The book calls this "Even" yet it is not level when we are lying in a scanner.

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Coronal Corona: "crown" a coronal plane is parallel to crown that goes from ear to ear Coronal cut makes foremost, back bits

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Sagittal – 'bolt like' Sagittal cut partitions question into left and right sagittal suture resembles a bolt. best view

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Transverse: opposite to the long hub These slices are likewise alluded to as Axial. Case: cucumber cuts are transverse to long hub .

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Oblique Slices that are not sliced parallel to an orthogonal plane are called 'angled'. The angled blue cut is neither Coronal nor Axial. Cor Oblique Ax

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Anatomy Brain Planes Axis of left/right plane simple to characterize What is the pivot for hub plane? ? ? ?

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Bicommissural plane Axis for hub plane is characterized by foremost commissure (AC) and back commissure (PC). Both are little districts that are clear to see on generally filters.  PC  AC

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Distance from midline Medial – close sagittal midline Optic chiasm C average of eyes Lateral – a long way from droop. Midline Eyes are parallel of optic chiasm Ipsilateral – same side Damage to A will bring about visual impairment in ipsilateral eye Contralateral –different side Damage to D will prompt to a contralateral field cut. Note: after mind harm (injuries) we discuss contralesional and ipsilesional Damage to visual cortex G prompts to issues with contralesional vision.

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Relative positions Distance From Body Proximal , Central : close focus of body Think "nearness" Shoulders are proximal parts of arms Distal , fringe : far from body Think far off Fingers are distal parts of the arms Distance from Surface Superficial , outside : close surface The knock wounded shallow tissue. Significant , profound : a long way from surface The auto accident harmed profound organs.

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Neuron : Cell which is in charge of getting, transmitting and blending data cell body: contains organelles for digestion system and a core Glial Cells : Support cells for Neurons

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The Cortex – "Bark" shell of cerebrum ~80% of human mind ~20% of squirrel cerebrum

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The enormous folds The folds of your mind resemble a unique mark – there are a couple general examples, with individual inconstancy. Two principle folds Central Sulcus Fissure of Rolando Rolandic sulcus Lateral sulcus Sylvian crevice

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Describing cortex area Brodmann Areas (BAs, 1909) Appearance of cortex under magnifying lens Not really work Arbitrary numbers are difficult to recall

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Brodmann Areas Function does not really take after appearance. Some key regions: 44: Broca's Area 22: Wernicke's Area 17: V1 Primary Visual

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Brodmann Areas (average cut) Note that dim matter is situated in the longitudinal gap (between the two halves of the globe)

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Squirrels versus people squirrel cerebrum Surface of human mind is notched. Surface of mind from numerous creatures is level. On the off chance that we totally smoothed a squirrel cerebrum, it would be the extent of a stamp.

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Cortical collapsing Cortical collapsing expands surface zone. Edges are called Gyri (solitary = Gyrus) Greek gyros = circle, henceforth a loop of cerebrum cortex Valleys are called Sulci (particular = Sulcus). Latin = a furrow. Gyri Sulci

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Anatomy Surface of human cortex and cerebellum is exceptionally collapsed Flattened, every half of the globe 1100cm 2 Cerebellum is additionally 1100cm 2 Crumpled shape conceals size of cortex Compare Folded/Unfolded (from Marty Sereno) Human Chimpanzee Monkey

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Cortical Names Much of cortex alluded to by mix of coordinate+lobe+gyrus E.G. Unrivaled Temporal Gyrus (STG) Middle Temporal Gyrus(MTG) Lateral Occipital Gyrus (LOG)

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Cortical names Tip of a protest called a "shaft" Frontal Pole Temporal Pole

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Sulci names Many of sulci alluded to by blend of coordinate+lobe+sulcus Superior transient sulcus (STS) Inferior frontal sulcus (IFS) Precentral and postcentral sulci are recently foremost and back to the focal sulcus.

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Brain work Anatomy is intrigued with the structure of a life form. Physiology is occupied with the capacity of the structure. We are as yet finding out about mind work Modern maps of cerebrum capacity are primitive…

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Brain work Much of the primate cortex committed to vision. In some monkeys, up to half of neocortex is committed to vision.

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Brain work Two striking components of human cerebrum Lots of cortex 'left over' (yellow) not committed to particular errand – we are adaptable Not a significant part of the cortex is exclusively given to dialect.

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A 1 B 2 4 3 C D

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