Brain And Cranial Nerves Flashcards
The central nervous system is composed of that?
Brain
Spinal cord
All other tissues that are not part of the central nervous system are part of what?
Peripheral nervous system
What is the outer part of the brain called
Cerebrum
The cerebrum is split into a right and left what?
Cerebral hemisphere
Gyrus
Sulcus
Cerebellum
The Brainstem is composed of what? 3
Midbrain
Pons
Medulla oblongata
What is the function of the cerebellum?
Fine motor control
Name this lobe of the brain
Occipital
Name this lobe of the brain
Parietal
Name this lobe of the brain
Frontal
Temporal
Midbrain
Pons
Medulla oblongata
Spinal cord
Name this part of the brain
Frontal lobe
Name this part of the brain
Temporal lobe
Name this part of the brain
Cerebellum
Name this part of the brain
Spinal cord
Name this part of the brain
Medulla oblongata
Name this part of the brain
Pons
Name this part of the brain
Midbrain
what does midbrain do? 3
motor movement, auditory and visual processing
what does pons do?
control of breathing, communication with other parts of the brain, sensations - hearing, taste, balance
what does medulla oblongata do?
regulates breathing, heart and blood vessel function, digestion, sneezing and swallowing
Name this part of the brain
Optic chiasma
What is the optic chiasma
Part of the brain where the optic nerves cross
Name this cranial nerve
CNI
Name this cranial nerve
CNII
Name this cranial nerve
CNIII
Name this cranial nerve
CNIV
Name this cranial nerve
CNV
Name this cranial nerve
CNVI
Name this cranial nerve
CNVII and CNVIII
Name this cranial nerve
CNIX and CNX
Name this cranial nerve
CNXI
Name this cranial nerve
CNXII
What are the meninges?
Protective covering for the brain and spinal cord
What are the layers of meninges from superficial to deep?
Dura mater
Arachnoid mater
Pia mater
Where is the subarachnoid space located?
Between arachnoid mater and pia mater
What does the subarachnoid space contain?
Cerebral spinal fluid
The dura mater is a tough ? Protective layer. It is ? And ? And has ? Layers
Fibrous
Innervated
Vascular
2
What are the two layers of dura mater?
Periosteal layer - contact with skull
Meningeal layer - contact with meningeal deep to dura mater
Arachnoid mater has ? That extend from it for ? Of ? Back into the ?
Arachnoid granulations
Reabsorption
Cerebral spinal fluid
Venous blood supply
What does the pia mater do?
Coats the brain and blood vessels/nerves entering and leaving the brain
What is the layer of dura that extends between the cerebral hemispheres?
Falx cerebri
What is the layer of dura that sits between the cerebral hemispheres above and cerebellum below?
Tentorium cerebelli
blood supply to the brain is from what 2 sources?
the vertebral arteries
internal carotid artery
the vertebral artery is a branch of what artery?
subclavian artery
how does the vertebral artery get to the brain?
travels through the transverse foramina of the cervical vertebrae
enters the cranial cavity through the foramen magnum
the vertebral arteries in the cranial cavity join to give what artery?
basilar artery
name this artery
right vertebral artery
name this artery
right subclavian artery
name this artery
right and left vertebral arteries
name this artery
basilar artery
the internal carotid artery is a branch of what?
common carotid artery
how do the internal carotid arteries enter the cranial cavity?
carotid canal
name this artery
common carotid artery
name this artery
internal carotid artery
name these arteries
internal carotid arteries
what is the circle of willis?
communication between the vertebral arteries posteriorly to the internal carotid arteries anteriorly
arterial anastomoses
what arteries supply the posterior aspect of the cerebral hemisphere?
posterior cerebral arteries
what arteries supply the lateral aspect of the cerebral hemisphere?
middle cerebral arteries
the middle cerebral arteries are a branch of what?
internal carotid arteries
what arteries supply the medial aspect of the cerebral hemisphere?
anterior cerebral arteries
name these arteries
right and left vertebral arterie
name this artery
basilar artery
name this artery
right posterior cerebral artery
name this artery
left posterior cerebral artery
name this artery
right posterior communicating artery
name this artery
left posterior communicating artery
name this artery
right internal carotid artery
name this artery
left middle cerebral artery
name this artery
anterior communicating artery
name this artery
right anterior cerebral artery
name this artery
left anterior cerebral artery
where do the dural venous sinuses drain blood to?
internal jugular vein at the jugular foramen
name this part of the dura
falx cerebri
name this dural venous sinus
superior sagittal sinus