Brain Flashcards
How do ventricles connect and what order
2 lateral ventricles right and left separated by septum pellucidum. Interventricular foramen connect the third ventricle. Cerebral aqueduct connect the forth ventricle
Wernicke area
Interpretive area of cerebrum. Only one hemisphere, generally left
Hypothalamus
Subconscious control over skeletal muscles Control autonomic function Secrete ADH and OXytocin Produce emotional and behavioral drives Regulate body temp
Function of pons
Connect cerebellum to brain stem
Involved in somatic and visceral motor control
3 folds of dura mater
Falx cerebri
Tentorium cerebelli
Falx cerebelli
Falx cerebri
Protects and separates cerebral hemispheres
Contains superior and inferior sagittal sinus
Attaches to crista Galli and ethmoid
Tentorium cerebelli
Separates cerebral hemispheres from cerebellum
Falx cerebelli
Divides two cerebellum
Six major regions of the brain
Cerebrum Cerebellum Diencephalon Midbrain Pons Medulla oblongata
Brain stem contains
Midbrain, pons, medulla oblongata
Association fibers
Connect neurons within 1 hemisphere
Arculate- short connect gyrus
Longitudal fasciculi- long connect frontal to other lobes in same hemisphere
Commissural fibers
Connect 2 hemispheres right and left
Corpus callosum and anterior commissure
Pre central gyrus
Primary motor cortex in frontal lobe
Directs voluntary movements via somatic motor
Central sulcus
Divides pre and post central gyrus
Post central gyrus
Primary sensory cortex in parietal lobe
Receives somatic sensory for touch, pain, temp, and vibration
Cranial nerve 1
Olfactory
Cranial nerve II
Optic
Diencephalon
Special sensory
Cranial nerve III
Oculomotor nerve
Midbrain
Motor
Moves eyelids
Cranial nerve IV
Trochlear
Midbrain
Motor
Moves eye down and to side
Cranial nerve 5
Trigeminal
Pons
Mixed and autonomic
Cranial nerve VI
Abducens
Pons
Motor
Moves eye side to side
Cranial nerve VII
Facial
Pons
Cranial nerve VIII
Vestibulocochlear
Pons and medulla oblongata
Special sensory
Cranial nerve IX
Glossopharyngeal
Medulla oblongata
Mixed and autonomic
Cranial nerve X
Vagus
Medulla oblongata
Mixed and autonomic
Cranial nerve XI
Accessory
Medulla oblongata
Motor
Muscle and back
Cranial nerve XII
Hypoglossal
Medulla oblongata
Motor
Tongue movement
Projection fibers
Connect cerebrum with lower areas
Pass through diencephalon, brain stem, cerebellum, and spinal cord.
Ascending and descending
BBB weak points
Choroid plexuses
Pineal gland
Posterior lobe of pituitary gland
How does CSF get into subarachnoid space
Via lateral aperture
And one median aperture
Medulla oblongata functions
Connect brain to spinal cord
Controls HR, BP, respiration
Autonomic reflexes
Diencephalon
Integrates sensory info and motor commands
Thalamus
Relay and processing centers for sensory info
Cerebrum functions
Conscious thought, intellectual functions
Memory storage and processing
Conscious and subconscious control of skeletal muscle contractions
Cerebellum
Coordinates somatic motors and stores learned reflexes
Midbrain
Regulates auditory and visual reflexes and controls alertness
