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Download Objective 1: Anatomy of the human brain and cranial nerves
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Lab 10 Central Nervous System & The Brain Human Brain Sheep Brain SB fall 2011 Objective 1: Anatomy of the human brain and cranial nerves Cerebrum (gold area) Diencephalon (Violet area) Brain stem (green area) Cerebellum (pink area) Human Brain, Superior View Post central gyrus Central sulcus Pre central gyrus Longitudinal fissure Frontal pole Occipital pole Structures of the Cerebrum Human Brain, Lateral View Parietal lobe Central sulcus Gyrus Occipital lobe Frontal lobe Fissure Lateral sulcus Temporal lobe Structures of the Cerebrum Surface Lateral View Central sulcus Precentral gyrus Postcentral gyrus Parieto-occipital sulcus Parietal lobe Frontal lobe Occipital lobe Lateral sulcus Temporal lobe Transverse fissure Structures of the Cerebrum Midsagittal Section Corpus callosum Parietal lobe Septum pellucidum Frontal lobe Occipital lobe Fornix Temporal lobe Structures of the Cerebrum Cerebral Hemispheres Left Hemisphere Fissure Right Hemisphere Gyrus Sulcus Frontal cut Gray Matter – Cerebral cortex & Basal nuclei White Matter – Myelinated axons (fiber tracts) Ventricles Internal Structures of the Cerebrum Frontal Section Corpus callosum Septum pellucidum Lateral Ventricles Fornix Cerebral Cortex Histology - Recap Recap: Pyramidal Cells of Cerebral Cortex Functional areas of the cerebrum Functional Mapping of Pre and Post Central Gyri Midsagittal Section Midsagittal Section MRI Corpus callosum Fornix Septum pellucidum Midsagittal Section of Human Brain Corpus Callosum Lateral ventricle Third Ventricle Corpora quadrigemina Fornix Occipital lobe Diencephalon Optic chiasma Transverse fissure Pons Cerebellum Diencephalon Corpus callosum Choroid plexus Intermediate mass Optic chiasma Hypothalamus Mammillary body Corpora quadrigemina Structures of the Diencephalon Midsagittal Section Intermediate mass Hypothalamus Optic chiasma Infundibulum Pituitary gland Mammillary body Corpus callosum Thalamus Pineal body/gland Structures of the Brainstem Midsagittal Section Midbrain: Corpora quadrigemina Superior colliculi Inferior colliculi Pons Medulla oblongata Cerebral peduncle Superior cerebellar peduncle Fourth ventricle Arbor Vitae Cerebellum Cerebellum Histology - Recap Purkinje Cells Meninges of the Brain A mnemonic PAD from deep to superficial the layers of the meninges are pia, arachnoid, dura (they pad the brain) Human Meninges (Outer Periosteum) Superior Sagittal Sinuses Pia Mater S k u l l Dura Mater Inner layer of Dura Mater External layer of Dura Mater (Inner Periosteum) Dural Sinuses Superior sagittal sinus Arachnoid villus Periosteal layer Meningeal layer Superior Sagittal Sinus Superior Sagittal Sinus Die-cast model Cerebrospinal fluid is continually produced by the choroid plexus found in the ventricles Ventricles Midsagittal Section of Brain Choroid Plexus Lateral Ventricle Interventricular Foramen Third Ventricle Cerebral Aqueduct Fourth Ventricle Lateral and Third Ventricles Coronal Section White matter Corpus callosum Lateral ventricle Cerebral nuclei Third ventricle 12 Pairs of Cranial Nerves 12 Pairs of Cranial Nerves Filaments of Olfactory nerve (I) Olfactory bulb Olfactory tract Optic nerve (II) Optic chiasma Oculomotor nerve (III) Optic tract Trochlear nerve (IV) Abducens nerve (VI) Trigeminal nerve (V) Facial nerve (VII) Vestibulocochlear nerve (VIII) Glossopharyngeal nerve (IX) Vagus nerve (X) Hypoglossal nerve (XII) Accessory nerve (XI) On Occasion Our Trusty Truck Acts Funny - Very Good Vehicle AnyHow Oh, Oh, Oh - To Touch And Feel Very Good Velvet - AH! The Olfactory Nerve Real Thing Optic Nerve Trigeminal Nerve Occulomotor Nerve Abducens Nerve Facial Nerve GlossoPharyngeal Vestibulocochlear Nerve Vagus Accessory Nerves Hypoglossal Nerve Cranial Nerves, Human Brain Abducens Nerves Trochlear Nerves Optic Chiasma Olfactory Nerves Occulomotor Nerves Optic Nerves Objective 2: Sheep Brain Dissection Pineal Gland Corpus Callosum Cerebellum Lateral Ventricle Corpora Quadrigemina Third Ventricle Thalamus Medulla Oblongata Pons Optic Chiasma 1 Identify the external structures (Inferior) Sheep brain structures are the same as the human brain, only slightly different sizes 2 Remove Dura mater (w/ pituitary gland) Identify the external structures (Superior) 1 2 Same structures as human brain, only slightly different size Identify the external structures (Inferior) 1 4 2 3 3 Pull back the cerebellum to reveal Corpora Quadrigemina & Pineal Gland ? 4 Brainstem Diencephalon Identify the internal structures 4 (Midsagittal) 2 3 1 5 4 4 Identify the Cavities Lateral 4 Ventricle Fourth Ventricle 3 Cerebral 2Aqueduct 1 Third Ventricle
