Intro to human brain Flashcards
What composes the CNS?
Brain and spinal cord
What composes the PNS?
Nerves linking the CNS to rest of the body
Which fissure divides the brain into two cerebral hemispheres?
Great longitudinal fissure
What is the name for a fold on the brain?
Gyrus
What is the name for a groove in the brain?
Sulcus
What are the four lobes each cerebral hemisphere are divided into?
Parietal
frontal
temporal
occipital
What is the brainstem made up of?
medulla
pons
midbrain
what is the role of the thalamus?
An important relay station between the brainstem and the cerebral cortex
What is the role of the hypothalamus?
To control the autonomic NS
In development of the brain what does the prosencephalon form?
The forebrain
What does the mesencephalon form?
The midbrain
What does the rhombencephalon form?
The hindbrain
What does the caudal end of the neural tube develop into?
the spinal cord
which secondary brain vesicles does the prosencephalon develop into?
Telencephalon
diencephalon
What secondary vesicles does the mesencephalon develop into?
mesencephalon
which secondary vesicles does the rhombencephalon develop into?
metencephalon
Myelencephalon
what does the telencephalon develop into?
the cerebral hemispheres
What does the diencephalon develop into?
The diencephalon - thalamus/hypothalamus
what does the mesencephalon develop into?
the midbrain
what does the metencephalon develop into?
Pons and cerebellum
What does the myelencephalon develop into?
Medulla oblongata
What is the dura?
the outer meninges - tough fibrous membrane
where is the falx cerebri?
between the cerebral hemispheres
where is the tentorium cerebelli
between cerebrum and cerebellum
what is the arachnoid mater?
middle meninges, between dura and pia mater
soft translucent membrane
what is the pia mater
adheres to the surface of brain
between which meninges is the CSF?
Pia mater and arachnoid mater
what is the function of the meninges?
to cushion the brain, protect and nourish
Where is the falx cerebelli?
between the cerebellar hemispheres
which two pairs of arteries supply the brain?
the vertebral artery an internal carotid
where does the vertebral artery enter the brain?
The foramen magnum
how does the internal carotid enter the brain?
via the carotid canals
which area of the brain does the posterior cerebral artery supply?
occipital lobe
