Original Practicum 3 (Heyman)

1 smell

Olfactory Nerve

2 vision

Optic Nerve

3 controls superior rectus, inferior rectus, medial rectus, & inferior oblique muscles moving the eye

Oculomotor Nerve

4 controls superior oblique eye muscle

Trochlear Nerve

5 Major sensory nerve of face, controls muscles in mastication (chewing)

Trigeminal Nerve

6 controls lateral rectus muscle of eye

Abducens Nerve

7 controls muscles of facial expression, sense of taste

Facial Nerve

8 sense of equilibrium and hearing

Vestibulocochlear Nerve

9 controls pharyngeal muscles & salivary glands, sense of taste

Glossopharyngeal Nerve

10 largest parasympathetic nerve

Vagus Nerve

11 controls neck muscles

Accessory Nerve

12 controls muscles of tongue

Hypoglossal Nerve

Frontal Lobe

Parietal Lobe

Temporal Lobe

Occipital Lobe

Cerebrum

Cerebellum

Arbor Vitae

Medulla Oblongata

Pineal Body/Gland

Corpus Callosum

Choroid Plexus

Fornix

Thalamus

Hypothalamus

Infundibulum

Pituitary Gland

Olfactory Bulb

Olfactory Tract

Superior Colliculus

Inferior Colliculus

Lateral Ventricle

Third Ventricle

Fourth Ventricle

Cerebral Aqueduct

Meninges

The three protective membranes
-dura mater
-pia mater
-arachnoid

Dura Mater

Arachnoid Mater

Pia Mater

White Columns/ Matter

Gray Matter

Dorsal Horn

Lateral Horn

Dorsal (posterior) Median Sulcus

Ventral (anterior) Median Fissure

Central Canal

Ventral Root

Dorsal Root

Dorsal Root Ganglion

Sheep Dura Mater

this is a thin, cotton-like connection between the dura & pia mater, this is dissolved in the preservative & not visible in the brain we dissect

Arachnoid layer in Sheep

Right v Left Hemispheres

Gyri
-the ridges

Sulci
-the grooves

Cerebrum
-conscious brain

Cerebellum
-coordinates muscles movements, muscle memory

Transverse Fissure
-separates cerebrum & cerebellum

Spinal Cord

Inferior Colliculi
-auditory reflexes

Superior Colliculi
-visual reflexes

Pineal Body
-controls sleep/wake cycles

Olfactory Bulb & Tract
-sense of smell
-nerve 1

Optic Nerve & Optic Chiasm
-vision
-nerve 2

Oculomotor Nerve
-controls eye movement
-nerve 3

Trigeminal Nerve
-big nerve w/ 3 branches,
-sensation from face and controls chewing
-nerve 5

(sometimes hides the occulomotor nerve until moved/removed carefully)

Pons
-bridge that links medulla oblongata to thalamus

Medulla Oblongata
-houses autonomic centers

Sheep Lateral Ventricle
-produces and contains cerebrospinal fluid

Sheep Fornix

Sheep Thalamus
-gateway to cerebral cortex

Sheep Hypothalamus
-located under the thalamus on human brain
-controls pituitary gland and autonomic centers of medulla oblongata

Sheep Pituitary Gland

Sheep Cerebral Cortex
-grey matter that contains neuron cell bodies
-site of the "conscious mind"

Sheep White Matter
-contains bundles of myelinated axons called "tracts" in CNS

Sheep Longitudinal Fissure

Sheep Corpus Callosum

Sheep Third Ventricle

Oh, Oh, Oh, To Touch And Feel Very Good Velvet ... Ahhh Heaven!!

Helpful Mnemonic

sheep corpus callosum

Sheep optic chiasm

Sheep Pineal Gland

Sheep superior colliculus

Sheep Cerebellum

sheep 4th ventricle

Sheep Central Canal

Sheep Optic Chiasm

Sheep Pons

auricle

straight

Rectus

External Acoustic Meatus

vestibule
-functions in balance and equilibrium

Vestibulocochlear Nerve
- cranial nerve 8

Stapes

Incus

Malleus

Tympanic Membrane

pharyngotympanic tube

external ear

middle ear