BIO210 EXAMS QUESTIONS AND ANSWERS
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Dura Mater
outermost double-layered structure which contains dural sinuses
longitudinal fissure
midsagittal fissure between the right and left hemispheres of the cerebrum; houses
superior/inferior sagittal sinuses
Transverse fissure
horizontal fissure between cerebrum & cerebellum; houses transverse sinus
Cerebellum
"little Brain", divides L & R, Vermis Connects two Hemispheres; coordinate skeletal
muscle activity and regulate balance
Arachnoid
threadlike extensions connecting it to pia mater; does not travel into brain's folds (sulci)
Pia Mater
thin layer directly connected to brain, like shrinkwrap, by astrocytes
Cerebrospinal Fluid (CSF)
fluid similar to blood plasma that cushions brain; formed by ependymal cells of choroid
plexus near ventricles
Ventricles
arise from fluid-filled space within the neural tube
Septum Pellucidum
separates the lateral ventricles
Blood-Brain Barrier
neural tissue and impermeable capillaries prevent items from moving into brain
Benefit of Blood-Brain Barrier
some drugs not reach the brain
Disadvantage of Blood-brain Barrier
some cancer drugs not reach the brain, alcohol can cross
Major Regions of Brain
Cerebrum, cerebellum, diencephalon (thalamus, hypothalamus and pituitary gland),
Brain stem
What are Lobes of Brain?
Frontal
temporal
parietal
occipital
insula (deep in cerebrum)
Function of cerebrum
consciousness: perception, communication, voluntary movement. Motor and Sensory
interneurons
Gray Mater of Brain
known as cerebral cortex, outer area, nonmyelinated
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Dura Mater
outermost double-layered structure which contains dural sinuses
longitudinal fissure
midsagittal fissure between the right and left hemispheres of the cerebrum; houses
superior/inferior sagittal sinuses
Transverse fissure
horizontal fissure between cerebrum & cerebellum; houses transverse sinus
Cerebellum
"little Brain", divides L & R, Vermis Connects two Hemispheres; coordinate skeletal
muscle activity and regulate balance
Arachnoid
threadlike extensions connecting it to pia mater; does not travel into brain's folds (sulci)
Pia Mater
thin layer directly connected to brain, like shrinkwrap, by astrocytes
Cerebrospinal Fluid (CSF)
fluid similar to blood plasma that cushions brain; formed by ependymal cells of choroid
plexus near ventricles
Ventricles
arise from fluid-filled space within the neural tube
Septum Pellucidum
separates the lateral ventricles
Blood-Brain Barrier
neural tissue and impermeable capillaries prevent items from moving into brain
Benefit of Blood-Brain Barrier
some drugs not reach the brain
Disadvantage of Blood-brain Barrier
some cancer drugs not reach the brain, alcohol can cross
Major Regions of Brain
Cerebrum, cerebellum, diencephalon (thalamus, hypothalamus and pituitary gland),
Brain stem
What are Lobes of Brain?
Frontal
temporal
parietal
occipital
insula (deep in cerebrum)
Function of cerebrum
consciousness: perception, communication, voluntary movement. Motor and Sensory
interneurons
Gray Mater of Brain
known as cerebral cortex, outer area, nonmyelinated
