Hemispheres 3.0 - Level I Brain
anatomy and Physiology well
answered
Periosteum - correct answer ✔✔ Thick, fibrous, vascular membrane covering skull surface
Epidural space - correct answer ✔✔ Potential space between skull and dura mater, seen when
filled with blood, usually from trauma
Dura mater - correct answer ✔✔ Tough, fibrous membrane made of two layers, periosteal and
menigeal
Periosteal layer of dura mater - correct answer ✔✔ outermost layer - adheres to the cranial
vault and serves as the periosteum of the skull
Meningeal layer - correct answer ✔✔ inner layer
covers the arachnoid mater and separates in some areas to form dural folds and venous sinuses
Subdural space - correct answer ✔✔ potential space between dura mater and arachnoid mater;
seen when filled with blood, usually from trauma
Arachnoid mater - correct answer ✔✔ middle spiderweb-like layer
subarachnoid space - correct answer ✔✔ cerebrospinal fluid-filled space between arachnoid
mater and pia mater and is continuous between the brain and spinal cord
,Pia mater - correct answer ✔✔ Delicate, innermost layer completely lining the brain and its
contours containing networks of capillaries
Grey Matter - correct answer ✔✔ nerve cell bodies that form the thinking part of the brain and
spinal cord
White matter - correct answer ✔✔ myelinated nerve fibers involved with nerve conduction of
the brain and spinal cord
Blood-brain barrier - correct answer ✔✔ Located between capillaries and interstitial fluid, it
selectively regulates what substances circulating in the blood reach brain tissue
Dural folds - correct answer ✔✔ inner meningeal layer of the dura that separates from the
periosteal layer and creases to form dural folds or reflections. Dural folds separate and
compartmentalize the brain into various regions
Falx Cerebri - correct answer ✔✔ Largest dural fold
Separates cerebrum into left and right hemispheres along the longitudinal fissure
Tentorium cerebelli - correct answer ✔✔ second largest dural fold, separates the cerebellum
and occipital lobe of cerebrum
Supratentorial - correct answer ✔✔ Term used clinically to describe the area above the
tentorium where the cerebrum is located
Infratentorial - correct answer ✔✔ term used clinically to describe the area below the
tentorium where the cerebellum and brainstem are located
, Choroid Plexus Structures - correct answer ✔✔ contained within the ventricle and form
cerebrospinal fluid (CSF)
Foramen of Monro - correct answer ✔✔ Channels that connect the lateral ventricles with the
third ventricle
Used as a leveling point for intracranial pressure monitoring
Lateral ventricles - correct answer ✔✔ Both hemispheres - located in the cerbrum
Third ventricle - correct answer ✔✔ Located in the narrow channel between cerebral
hemispheres
Communicates with lateral ventricles through the foramen of Monro
Fourth ventricle location - correct answer ✔✔ Located between pons, medulla, and cerebellum
and continues to the central canal of spinal cord
Fourth ventricle connections - correct answer ✔✔ connects to the third ventricle through the
cerebral aqueduct (of Sylvius) and the most common site of blockages
Cerebral aqueduct (Of Sylvius) - correct answer ✔✔ narrowest part in the ventricular system
Fourth ventricle function - correct answer ✔✔ distributes CSF to the subarachnoid space,
central canal of the spinal cord, and other neural tissue
CSF formation - correct answer ✔✔ Formed by filtration of plasma in the choroid plexus as
water and ions are selectively allowed to pass into the ventricles
CSF production rate - correct answer ✔✔ produced at rate of 500 ml per day and constantly
reabsorbed so normal circulating volume is about 150 mL
anatomy and Physiology well
answered
Periosteum - correct answer ✔✔ Thick, fibrous, vascular membrane covering skull surface
Epidural space - correct answer ✔✔ Potential space between skull and dura mater, seen when
filled with blood, usually from trauma
Dura mater - correct answer ✔✔ Tough, fibrous membrane made of two layers, periosteal and
menigeal
Periosteal layer of dura mater - correct answer ✔✔ outermost layer - adheres to the cranial
vault and serves as the periosteum of the skull
Meningeal layer - correct answer ✔✔ inner layer
covers the arachnoid mater and separates in some areas to form dural folds and venous sinuses
Subdural space - correct answer ✔✔ potential space between dura mater and arachnoid mater;
seen when filled with blood, usually from trauma
Arachnoid mater - correct answer ✔✔ middle spiderweb-like layer
subarachnoid space - correct answer ✔✔ cerebrospinal fluid-filled space between arachnoid
mater and pia mater and is continuous between the brain and spinal cord
,Pia mater - correct answer ✔✔ Delicate, innermost layer completely lining the brain and its
contours containing networks of capillaries
Grey Matter - correct answer ✔✔ nerve cell bodies that form the thinking part of the brain and
spinal cord
White matter - correct answer ✔✔ myelinated nerve fibers involved with nerve conduction of
the brain and spinal cord
Blood-brain barrier - correct answer ✔✔ Located between capillaries and interstitial fluid, it
selectively regulates what substances circulating in the blood reach brain tissue
Dural folds - correct answer ✔✔ inner meningeal layer of the dura that separates from the
periosteal layer and creases to form dural folds or reflections. Dural folds separate and
compartmentalize the brain into various regions
Falx Cerebri - correct answer ✔✔ Largest dural fold
Separates cerebrum into left and right hemispheres along the longitudinal fissure
Tentorium cerebelli - correct answer ✔✔ second largest dural fold, separates the cerebellum
and occipital lobe of cerebrum
Supratentorial - correct answer ✔✔ Term used clinically to describe the area above the
tentorium where the cerebrum is located
Infratentorial - correct answer ✔✔ term used clinically to describe the area below the
tentorium where the cerebellum and brainstem are located
, Choroid Plexus Structures - correct answer ✔✔ contained within the ventricle and form
cerebrospinal fluid (CSF)
Foramen of Monro - correct answer ✔✔ Channels that connect the lateral ventricles with the
third ventricle
Used as a leveling point for intracranial pressure monitoring
Lateral ventricles - correct answer ✔✔ Both hemispheres - located in the cerbrum
Third ventricle - correct answer ✔✔ Located in the narrow channel between cerebral
hemispheres
Communicates with lateral ventricles through the foramen of Monro
Fourth ventricle location - correct answer ✔✔ Located between pons, medulla, and cerebellum
and continues to the central canal of spinal cord
Fourth ventricle connections - correct answer ✔✔ connects to the third ventricle through the
cerebral aqueduct (of Sylvius) and the most common site of blockages
Cerebral aqueduct (Of Sylvius) - correct answer ✔✔ narrowest part in the ventricular system
Fourth ventricle function - correct answer ✔✔ distributes CSF to the subarachnoid space,
central canal of the spinal cord, and other neural tissue
CSF formation - correct answer ✔✔ Formed by filtration of plasma in the choroid plexus as
water and ions are selectively allowed to pass into the ventricles
CSF production rate - correct answer ✔✔ produced at rate of 500 ml per day and constantly
reabsorbed so normal circulating volume is about 150 mL
