BRAIN
Axon
Dendrites
Axon Hillock
Axon: propagates action potential
Dendrites: pick up stimulus for action potential
Axon Hillock: starting point for action potential
name all the cranial nerves 1-12
olfactory nerve
optic nerve
oculomotor nerve
trochlear nerve
trigeminal nerve
abducens nerve
facial nerve
vestibulocochlear nerve
glossalpharyengeal nerve
vagus nerve
accessory nerve
hypoglossal nerve
Lacrimal glands
Conjuctiva
Levator palpebrae superioris muscle
Lacrimal glands: makes lacrimal fluid which drains into lacrimal ducts
Conjuctiva: lubricates the eye/ results to pink eye when inflammed
Levator palpeerde superioris muscle: controls upper eyelid
Telencephalon:
Diencephalon:
Mesencephalon:
Metencephalon:
Myelencephalon:
Cerebrum
Thalamus,Hypothalamus, epithalamus
Midbrain
Pons and cerebellum
Medulla oblongata
Primary function: LIST MOTOR,SENSORY, OR BOTH
Olfactory:
Optic nerve
Oculomotor nerve
Trochlear nerve
olfactory: SENSORY: SMELL
optic: SENSORY: VISION
oculomotor: MOTOR: EYE MOVEMENT
trochlear: MOTOR EYE MOVEMENT
Corena & sclera
what tunic are these?
FIBROUS TUNIC
cornea: focuses light onto the retina
sclera: protects inner eye
Functional areas of the cerebral cortex and Lobe
Primary motor cortex, premotor cortex, prefrontal cortex, motor speech
Primary sensory cortex, somatic sensory association area, wernicke's area
primary motor: controls movement
premotor: coordinates movement
prefrontal: planning decisions
Brocas: speech articulation and language
primary sensory: senses touch, pain, temp
somatosensory: interpretes sensations
wernickes: understands speech and written languages
Primary function: LIST MOTOR,SENSORY, OR BOTH
trigeminal:
abducens:
facial:
vestibulocochlear:
trigeminal: FACIAL SENSATIONS (BOTH)
abducens: EYE MOVEMENT (MOTOR)
facial: FACE/TASTE (BOTH)
vestibulocochlear: HEARING/ BALANCE (SENSORY)
Choroid:
iris:
lens:
what tunic are these in?
Choroid: nourishment to the retina
iris: regulate amount of light entering the eye
lens: alter shape to focus light
VASCULAR TUNIC
what cells are in the Ventricles?
Choroid plexus which produces CSF
Primary function: LIST MOTOR,SENSORY, OR BOTH
glossalpharyngeal:
vagus:
accessory:
Hypoglossal:
glossalpharyngeal: SWALLOWING/MOUTH (BOTH)
vagus: REGULATION OF CARDIOVASCULAR FUNCTION/ GI TRACT (BOTH)
accessory: MUSCLES OF NECK AND UPPER BACK (MOTOR)
Hypoglossal: TONGUE MOVEMENT (MOTOR)
optic disc:
Macula lutea: what does it consist of ?
Fovea:
Which tunic are these in?
optic disc: "blind spot"
Macula lutea: CONS
Fovea: visual acuity
NEURAL TUNIC
function of thalamus, hypothalamus, and mammillary body.
Thalamus: relay sensory information to the cerebral cortex
Hypothalamus: regulates homeostasis and produces/ releases hormones through pituitary gland.
Mammillary body: feeding reflexes
cervical enlargement extends and ends where?
Lumbar enlargement extends and ends where?
AND how many pairs of nerves are in:
cervical:
Thoracic:
Lumbar:
Sacral:
cervical enlargement: C4 to T1
Lumbar enlargement: T9 to T12
cervical: 8
Thoracic: 12
Lumbar: 5
Sacral: 5
anterior cavity:
Posterior cavity:
which liquid is in both?
anterior cavity:
aqueous humor fluid & drained via sclera venous sinus
Posterior cavity: vitreous humor