Download NERVOUS SYSTEM

NERVOUS SYSTEM
NEURON: IDENTIFY ON MODEL
PART:
 cell body
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dendrite
axon
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myelin sheath
BRAIN DISSECTION & MODEL
PART:
 meninges
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olfactory bulbs
optic chiasma
pituitary gland
mammillary bodies
ventricles
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cerebrum
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thalamus
hypothalamus
pineal body
midbrain
pons
medulla oblongata
cerebellum
FEATURES:
nucleus
Nissl body (RER)
Neurofibrils (intermediate filaments)
axon hillock
axon terminal
mitochondria
Schwann cell
node of Ranvier
FEATURES:
dura mater
arachnoid
pia mater
Infundibulum
lateral, third, fourth
cerebral aqueduct
sulcus (sulci)
gyrus (gyri)
longitudinal fissure
transverse fissure
cerebral lobes: frontal, parietal, temporal, occipital
corpus callosum
septum pellucidum
fornix
cerebral cortex
intermediate mass
corpora quadrigemina
arbor vitae
CRANIAL NERVES
Cranial nerves
Names & Roman Numerals & Functions
Locate I & II on dissections; locate I, II, VIII, X on models
SPINAL CORD MODEL
PART:
 gray matter:
FEATURES:
anterior, posterior, lateral horns
gray commissure
funiculus (funiculi)
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white matter:
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central canal
roots
dorsal root ganglia
spinal nerves
anterior median fissure
posterior median sulcus
meninges
dorsal & ventral
dura mater, arachnoid, pia mater
SPINAL NERVES ON MODELS
Locate 31 pair of spinal nerves on models (Identify as C1…L5, C0)
Locate the following on selected lab models:
brachial plexus
phrenic nerve
sciatic nerve
radial nerve
vagus nerve
EYE DISSECTION AND MODEL
PART:
FEATURES:
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extrinsic muscles
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conjunctiva
sclera
cornea
choroid
ciliary body
iris
pupil
lens
retina
optic disc
optic nerve
anterior cavity
posterior cavity
superior, inferior, medial, lateral rectus muscles
superior and inferior oblique muscles
location of photoreceptors – rods & cones
contains aqueous humor
contains vitreous body
EAR MODEL
PART:
FEATURES:
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outer ear
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tympanic membrane
middle ear
auricle (pinna)
external auditory (acoustic) meatus
ossicles:
malleus
incus
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stapes – in oval window
auditory tube
vestibule - round window
cochlea - organ of Corti
semicircular canals
vestibular branch and cochlear branch of vestibulocochlear nerve
inner ear
REFLEX, VISION, & HEARING TESTS
The student will define and know the components of a reflex arc from Lab
Exercise I-12.
Reflex Arc:
receptor, sensory neuron, CNS, motor neuron, effector
The student will know how to perform and the response in the following muscle
stretch reflexes and know which spinal nerves are being tested:
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biceps reflex
supinator (brachioradialis)reflex
triceps reflex
patellar reflex
ankle reflex
cervical 5,6
cervical 5,6
cervical 6,7,8
lumbar 2,3,4
sacral 1,2
The student will know how to perform the following sensory tests and the
appropriate responses from Lab Exercise I-16:
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vibration
red reflex
pupillary reflex
Weber test
Rinne Test
astigmatism
color blindness – Ishihara’s color plates
Snellen chart – 20/20; 40/20; 20/40
The student will be able to describe the procedures and explain each exercise done in
lab (refer to Lab Guide A&P I exercises).