Head Flashcards
Unpaired bones
Frontal Occipital Sphenoid Ethmoid Vomer Mandible
Bones of the skull
22
Jxn bet frontal, parietal, squamous temporal, and great wing of sphenoid
Pterion
Epidural hematoma. Bleeding ______
Middle meningeal artery
Contains the internal acoustic meatus, conducts CNVII, CN VIII
Petrous portion of temporal bone
anterior cranial fossa is found, contains CN I
Ethmoid
Le fort II
Posterolateral part of the maxillary sinuses, CENTRAL part of the face separated from cranium
Tendinous sheet covering the calvaria
Galea aponeurotica
Contains the emissary veins/DANGER area
Loose connective tissue
Premature closure of coronal suture
Oxycephaly/ acrocephaly
Premature closure of Sagittal suture
Scaphocephaly
Premature closure of coronal and lamboidal suture
Plagiocephaly
Procencephalon divides into
Telencephalon and diencephalon
Rhombencephalon to
Metencephalon, myelencephalon
Cerebrum
Telencephalon
Thalamus
Diencephalon
Midbrain
Mesencephalon
Pons, cerebellum
Metencephalon
Medulla
Myelencephalon
Neural crest derivatives
Pigment cells or retina, cells of adrenal medulla
Sensory ganglia of spinal nerves and cranial nerves
Meninges
Neurolemmal sheath of peripheral nerve
Meninges
Dura mater
Arachnoid mater
Pia mater
Meningeal septa
Falx cerebri
Tentorium cerebelli
Falx cerebelli
Diaphragma sella
Innervation of dura matter
Trigeminal n.
First 3 cervical n.
Contains the CSF
Subarachnoid space
Primary motor area
Precentral gyrus
Primary sensory
Post central gyrus
Motor Aphasia
Broca’s area
Sensory aphasia
Wernicke’s aphasia
UMN vs. LMN lesion
UMN: spastic, clonus, hyperreflexia, inc muscle tone
LMN: flaccid, atrophy, fasciculation, dec muscle tone
Vestibular apparatus for equilibrium
Floculonodular n/vestibulocerebellum
Coordination of limb movements, regulation of muscle tone
Anterior cerebellar lobe/neocerebellum
Coordination of voluntary movements
Posterior lobe/ Paleocerebellum
Ataxia, intention tremors, dysmetria, dysdiadochokinesia
Posterior lobe syndrome
Gait instability
Anterior lobe syndrome
Trunkal ataxia
Floccunodular lobe syndrome
CSF flow
LATERAL VENT.–> intervent. Foramen of Monroe –> 3rd vent–> aqueduct of Sylvius–> 4th vent.–> for amen of Magendie and Luschka–> subarachnoid space–>arachnoid villi–>sup Sagittal sinus–>transverse sinus–> sigmoid sinus–>internal jugular vein
CSF pressure
60-150
Lumbar puncture done at
L3-L4 or L4-L5
Degeneration of substantia nigra
Parkinson’s dse
Degeneration of striatal neurons
Chorea
Contralateral subthalamic nucleus damage
Hemiballismus
Cranial nerve- mixed sensory and motor
5,7,9,10
CN in midbrain
III, IV
CN in pons
V, VI, VII, VIII
CN in medulla
IX, X, XI, XII
Supratentorial CN
I, II
Medial CN
III, VI, XII
Optic canal
CN II and ophthalmic artery
Superior orbital fissure
III, IV, VI, V1, ophthalmic vein
Foramen rotundom
V2(maxillary nerve)
Foramen ovale
Mandibular nerve (V3)
Jugular foramen
IX, X, XI
Hypoglossal canal
CN XII
Internal acoustic meatus
CN VII, VIII
Foramen magnum
Medulla and meninges, vertebral arteries, CN XI spinal roots
First part of subclavian artery
Vertebral - brain
thyrocervical - trunk
internal thoracic - inf. thyroid, breast
Second part
Costovertebral
“Worst headache of my life”
Berry aneurysm
Common sites of Berry aneurysm
MCA, Posterior communicating a ., Anterior communicating a.
Occulomotor nerve compression
Lesion on Post communicating a., Internal carotid a., PCA
Trumpeter’s muscle
Buccinatorr
Dangerous triangle
Root of the nose and two angles of the mouth
Structures affected by cavernous sinus thrombosis
CN III, IV and VI
ophthalmic and maxillary divisions of CN V
internal carotid a.
____opens the jaw
Lateral pterygoid
5 branches of facial n.
Temporal Zygomatic Buccal Mandibular Cervical
Intrinsic muscle of the tongue
Palatoglossal-elevation
Styloglossal-retraction
Hyoglossus-depression
Genioglossus-protrusion
Palatoglossus innervated by ____
CN 10
R optic n lesion
Blindness of R eye (optic neuritis)
Optic chiasm lesion
Bitemporal hemianopsia (pituitary adenoma)
Right angle of chiasm lesion
R nasal hemianopsia (aneurysm of ICA)
R optic tract lesion
L homonymous hemianopsia