ANAT 321NEUROANATOMY LAB

LABORATORY 3

CONTACT INFORMATION

Lab Coordinator:

• Erin Dickie

• email: erin.dickie@mail.mcgill.ca

• Tel: (514) 880-3746

• http://www.slideshare.net/erinwdickie

ANAT-321

• Neuroanatomy websites:– Digital anatomist:

• http://www9.biostr.washington.edu/da.html– The Human Brain: Dissections of the Real Brain

• http://www.vh.org/adult/provider/anatomy/BrainAnatomy/BrainAnatomy.html

– Neuroanatomy and neuropathology on the Internet • www.neuropat.dote.hu/

• These slides created by Emma Duerden, M.Sc.

Neuroanatomy Websites

ANAT 321NEUROANATOMY LAB

REVIEW LABS 3 & 4

• Lab 3– Cerebral vasculature– Meninges– Cerebral Spinal Fluid (CSF) production– Hemispheric anatomy

• Lateral and medial views

Cerebral Vasculature

Cerebral Vasculature

Internal carotid artery

Anterior blood supply

Posterior blood supply

Vertebral artery

Anterior communicating artery

Cerebral Vasculature

Superior cerebellar artery

Posterior inferior cerebellar artery

Posterior cerebral artery

Posterior communicating arteryInternal carotid

artery

Anterior inferior cerebellar artery

Middle cerebral artery

Anterior cerebral artery

Vertebral arteries

Ant

erio

r bl

ood

supp

lypo

ster

ior

bloo

d su

pply

Cerebral Vasculature

Superior cerebellar artery

Posterior inferior cerebellar artery

Posterior cerebral artery

Posterior communicating artery

Internal carotid artery

Vertebral arteries

Anterior inferior cerebellar artery

Middle cerebral artery

Anterior communicating artery

Anterior cerebral artery

Courtesy of Digital Anatomist Project at Univ. of Washington

Posterior communicating artery

Cerebral Vasculature

Superior cerebellar artery

Anterior inferior cerebellar artery

Internal carotid artery

Vertebral arteries

Posterior inferior cerebellar artery

Middle cerebral arteryAnterior communicating artery

Anterior cerebral artery

Posterior cerebral artery

Courtesy of Digital Anatomist Project at Univ. of Washington

Cerebral Vasculature

Posterior communicating artery

Superior cerebellar arteryAnterior inferior

cerebellar artery

Internal carotid artery

Vertebral arteries

Middle cerebral artery

Posterior cerebral artery

Posterior inferior cerebellar artery

Courtesy of Digital Anatomist Project at Univ. of Washington

Meninges

3 layers

- Dura mater

- Arachnoid mater

- Pia mater

http://www.sruweb.com/~walsh/meng1.gif

skin

bone

Dura mater

arachnoid mater

Sub-arachnoid spacepia mater

cortex

Meninges Dura Mater – outer layer

Inferior olive

CN 6

CN 9

CN 7CN 8

CN 10

Basal view of outer layer

lateral view of outer dural layer

Dura Mater is composed of:

- Outer layer

- Inner layer

Courtesy of Dr. Frank Willard: faculty.une.edu/com/fwillard/Meninges/

Meninges Dura Mater and sagittal sinus

CN 6

Separation of the inner and outer layers forms the sinuses

Dura - outer layer

Superior/mid sagittal sinus

Courtesy of Dr. Frank Willard: faculty.une.edu/com/fwillard/Meninges/

Meninges Dura Mater – Outer layer

Frontal lobeOccipital

lobe

Dura outer layer

skull

Courtesy of Dr. Frank Willard: faculty.une.edu/com/fwillard/Meninges/

Meninges Arachnoid Mater and sagittal sinus

Dura outer layer

skull

Dura inner layer

Superior/mid sagittal sinus

Arachnoid mater

Frontal lobe Occipital lobe

Coronal view of sinus

Courtesy of Dr. Frank Willard: faculty.une.edu/com/fwillard/Meninges/

Meninges Dura Mater & Arachnoid Granulations

Pyramid

CN 9

CN 12

CN 7CN 8

CN 10

Mid/superior sagittal sinus

Arachnoid Granulations

Dura mater – outer layer

Courtesy of Dr. Frank Willard: faculty.une.edu/com/fwillard/Meninges/

Meninges Arachnoid Mater & Granulations

Arachnoid granulations

Arachnoid mater

Courtesy of Dr. Frank Willard: faculty.une.edu/com/fwillard/Meninges/

http://www.bio-graphix.com/medillimages/FlowCSF0001.jpg

Choroid plexus

3rd ventricle

4th ventricle

Sub-arachnoid space

Arachnoid granulations

Arachnoid mater

Dura Mater

Meninges CSF production

CSFCSF

CSF

Meninges CSF production

CSF exits through foramina into sub-arachnoid space

CSF is deposited into the superior sagittal sinus through the arachnoid

granulations

CSF produced in ventricles

HEMISPHERESSAGITTAL VIEW

HEMISPHERESSAGITTAL VIEW

Calcarine fissure

Parieto-occipital fissure

cuneus

Cingulate gyrus

Lingual gyrus

Primary visual cortex Courtesy of Digital Anatomist Project at Univ. of Washington

HEMISPHERESSAGITTAL VIEW

Calcarine

fissure

Parieto-occipital fissure

cuneus

Lingual gyrus

Cingulate gyrus

Courtesy of Digital Anatomist Project at Univ. of Washington

HEMISPHERESSAGITTAL VIEW

Calcarine fissure

Parieto-occipital fissure

cuneus

Lingual gyrus

Cingulate gyrus

uncus

Parahippocampal gyrus Courtesy of Digital Anatomist Project at Univ. of Washington

HEMISPHERESSAGITTAL VIEW

Parieto-occipital fissure

cuneus

Lingual gyrus

Cingulate gyrus

uncus

Parahippocampal gyrus

Calcarine fissure

Courtesy of Digital Anatomist Project at Univ. of Washington

HEMISPHERESLATERAL VIEW

HEMISPHERESLATERAL VIEW

Lateral sulcusTemporal

lobe

Frontal lobe

Pre-occipital notch

Parieto-occipital fissure

Central sulcus

Occipital lobe

Parietal lobe

Courtesy of Digital Anatomist Project at Univ. of Washington

HEMISPHERESLATERAL VIEW

Lateral sulcus

Central sulcus

Superior frontal gyrus

middle frontal gyrus

inferior frontal gyrus

Inferior temporal gyrus

superior temporal gyrus

Inferior parietal lobule

middle temporal gyrusmiddle temporal gyrus

superior parietal lobule precentral gyrus

Post central gyrus

Courtesy of Digital Anatomist Project at Univ. of Washington

HEMISPHERESLATERAL VIEW

Central sulcus

Inferior temporal gyrus

superior temporal gyrus

middle temporal gyrusmiddle temporal gyrus

Post central gyrus

precentral gyrus

Lateral sulcus

inferior frontal gyrus

middle frontal gyrus

Superior frontal gyrus

superior parietal lobule

Inferior parietal lobule

Courtesy of Digital Anatomist Project at Univ. of Washington

HEMISPHERESLATERAL VIEW - INSULA

Insula

Courtesy of Digital Anatomist Project at Univ. of Washington

HEMISPHERESLATERAL VIEW

Lateral sulcus

Central sulcus

Parietal opercula

Frontal opercula

Heschl’s gyrus

Courtesy of Digital Anatomist Project at Univ. of Washington

HEMISPHERESLATERAL VIEW

• Heschl’s gyrus– posterior portion of the superior

temporal gyrus– Located on the inferior bank of the

lateral sulcus

Courtesy of Digital Anatomist Project at Univ. of Washington

HEMISPHERESLATERAL VIEW • Frontal and parietal opercula• Opercula = cover the insula

– Superior bank of lateral sulcus– Frontal operculum are anterior to

central sulcus– Parietal operculum are posterior to

central sulcus

Parietal operculum

insula

Heschl’s gyrus

Courtesy of Digital Anatomist Project at Univ. of Washington

NEUROANATOMYQUIZ

ANAT 321NEUROANATOMY LAB

Questions?

Email: erin.dickie@mail.mcgill.ca

Phone: 514-880-3746

www.slideshare.net/erinwdickie