Transcript The Brain 06

The Brain 06
Laboratory Exercise
Objectives
• Recognize the medulla, pons, cerebellum, midbrain,
diencephalon, and cerebral hemispheres
• Recognize the corpus callosum, fornix, septum, rostral
commissure, hypophysis, ventricles
• Recognize the stumps of the cranial nerves
• Recognize the cerebellum and its vermis and hemispheres
• Recognize the rostral colliculi, caudal colliculi, and
mesencephalic aqueduct
• Recognize the medial and lateral geniculate bodies, optic
nerves, chiasm and tracts, mamillary bodies, epiphysis
(pineal)
• Recognize canine cruciate sulcus, marginal sulcus,
precruciate, postcruciate, marginal and ectosylvian gyri.
Cerebrum
• Longitudinal fissure
•Sulci and Gyri
Cerebellum
•Vermis
•Hemispheres
Brain stem
•Diencephalon
•Mesencephalon
•Metencephalon
•Myelencephalon
Cerebrum (Telencephalon)
Rhinal sulcus
Olfactory bulb
Olfactory
peduncle
Piriform lobe
Ventral surface
Diencephalon
-Optic nerves (II)
III
10
-Optic chiasm (25)
-Optic tracts (24)
-Tuber cinereum (8)
V
VI
VII
-Mammillary bodies (10)
Mesencephalon
-Crus cerebri
-Oculomotor n (III)
Metencephalon
-Transverse fibers, pons (13)
-Trigeminal nerve V
III
Myelencephalon
-Trapezoid body (18)
IV
-Pyramids (19)
V
VI
V
-Abducent nerve VI
-Facial nerve VII
-Vestibulocochlear nerve VIII
-Decussation of the pyramids
-Hypoglossal nerve XII
10
12
Cerebellar peduncles
rostral (12)
middle (10)
caudal (11)
Trochlear nerve IV
Dorsal surface Metencephalon, Myelencephalon
Median sulcus
Sulcus limitans
Obex
Fasciculus cuneatus
Spinal tract, V
Trigeminal nerve V
Ventricles
Corpus callosum
Fornix
Pineal
Interthalamic
Tectum Fourth ventricle
adhesion (33) Mesencephalic aqueduct
Hypothalamus (32)
Rostral commissure (37)
Dorsal surface, Diencephalon & Mesencephalon
Pineal
Lateral geniculate (4)
Medial geniculate(5)
Caudal colliculus(8)
Rostral colliculus(6)
Neocortex of the dog
Rhinal sulcus
Pseudosylvian sulcus
Sylvian gyri
Ectosylvian sulcus
Ectosylvian gyrus
-Middle (Auditory) 7’
Cruciate sulcus
Precruciate gyrus
Postcruciate gyrus
Marginal sulcus 16
Marginal gyrus (Visual)