Term
| This consists of five layers of soft tissue that cover the calvaria |
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Definition
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Term
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Definition
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Term
| The first three layers of the scalp , they remain together when cut or torn off |
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Definition
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Term
| Name the five layers of the scalp |
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Definition
skin
close subcutaneous tissue
aponeurosis/galea aponeurotica/epicranium
loose subaponeurotic tissue/ danger layer
pericranium/ periosteum/deepest layer |
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Term
| First layer of the scalp, found containing hair and sebaceous glands |
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Definition
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Term
| second layer of scalp, connective tissue, richly vascularized, well supplied with nerves |
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Definition
| close subcutaneous tissue |
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Term
| 3rd layer of scalp, a flattened tendon |
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Definition
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Term
| It is named galea aponeurotica |
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Definition
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Term
| also referred to as epicranium |
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Definition
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Term
| this layer of the scalp is found between the frontalis muscle anteriorly and the occipitalis muscle posteriorly |
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Definition
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Term
| 4th layer of scalp, allows free movement of scalp proper, loose connective tissue that contains many spaces that can allow pus or blood to spread easily through here. |
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Definition
| loose subaponeurotic tissue |
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Term
| emissary veins connect this layer with the dural sinuses and can lead to infection from this layer to cranial cavity. Also known as Danger layer |
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Definition
| loose subaponeurotic tissue |
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Term
| 5th layer of scalp, deepest, firmly anchored to skull |
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Definition
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Term
| 5th layer of scalp, pericranium is also known as the _______________ of the external surface of the skull |
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Definition
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Term
| cranial bone is made up of how many layers? |
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Definition
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Term
| What is on the external surface of the outer table? |
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Definition
| periosteum or pericranium( 5th layer of scalp) |
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Term
| The external layer of the cranial bone, made up of compact bone |
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Definition
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Term
| The middle layer of cranial bone, made of spongy bone |
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Definition
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Term
| The internal layer of cranial bone, made of compact bone |
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Definition
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Term
| This is the lining of the inner table, which is the outer layer of the dura |
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Definition
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Term
| blood supply of scalp comes from vessels below, specifically branches of _____________ |
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Definition
| external and internal carotid arteries |
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Term
| Many vessels anastamose freely in what layer of the scalp? |
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Definition
| second layer, close SQ tissue |
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Term
| Branches from these arteries supply the frontal region? |
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Definition
| internal carotid arteries |
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Term
| Branches supplying temporal and occipital regions come of what artery? |
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Definition
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Term
| Veins that accompany arteries in this arrangement (two veins lie on either side of artery) and have the same names as the arteries |
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Definition
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Term
| innervation of the scalp anterior to the external ears is through ? |
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Definition
| Branches of three divisions of the trigeminal nerve (CN V): Opthalmic, maxillary, and mandibular |
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Term
| Posterior to the ear nerve supply of the scalp is from? |
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Definition
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Term
| Name the 3 layers of meninges surrounding the brain |
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Definition
dura mater
arachnoid mater
pia mater |
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Term
| name the two layers of the dura mater |
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Definition
endocranium/ endosteum/ endosteal dura
and
meningeal dura |
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Term
| the outer layer of dura mater that fuses to skull |
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Definition
| endocranium/endosteum/ endosteal dura |
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Term
| the inner layer of the dura mater |
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Definition
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Term
| Endosteal dura and meningeal dura adhere to each other except at certain locations where they separate called? |
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Definition
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Term
| Name the two fluids that are contained in the dural sinuses |
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Definition
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Term
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Definition
falx cerebri
tentorium cerebelli
falx cerebelli
diaphragma sella |
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Term
| This dural fold separates the superior portion of the right and left sides of the cerebrum and is sickle shaped |
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Definition
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Term
| This dural fold attaches anteriorly to the crista galli of the ethmoid bone and posteriorly to the tentorium cerebelli at the level of the internal occipital protuberance |
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Definition
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Term
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Definition
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Term
| This dural fold forms a tent over the cerebellum |
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Definition
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Term
| latin word tentorium means |
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Definition
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Term
| this dural fold is sickle shaped, inferior to the surface of the tentorium cerebelli |
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Definition
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Term
| this dural fold separates the right and left cerebellar hemispheres |
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Definition
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Term
| this dural fold is a small, circular, horizontal sheet of dura that forms a roof over the hypophyseal fossa in the sella turcica |
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Definition
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Term
| The diaphragma sella is pierced by the? |
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Definition
| hypophyseal stalk( infundibulum) |
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Term
| arterial blood supply of the dura is not from the same vessels supplying the scalp. T or F |
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Definition
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Term
| arterial supply of the dura includes? |
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Definition
| meningeal arteries including the middle meningeal artery |
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Term
| this artery branches off the maxillary artery coming off the external carotid and courses external to the dura mater, inner surface of calvaria shows indentation of these vessels |
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Definition
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Term
| when two layers of the dura mater separate this is called a ? |
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Definition
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Term
| a sinus drains all blood and CSF from the brain; they all flow toward this vessel? |
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Definition
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Term
| sinus that lies in the median plane on the superior portion of the falx cerebri |
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Definition
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Term
| this sinus connects with diploic veins, cerebral veins, and lateral expansions of the lateral lacunae, draining posteriorly into confluence of sinuses |
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Definition
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Term
| this sinus lies in the median plane but on the inferior portion of the falx cerebri, it drains posteriorly into the straight sinus |
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Definition
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Term
| this sinus is found between the junction of the falx cerebri and tentorium cerebelli, receives blood from inferior sagittal sinus and cerebral veins. It drains posteriorly into confluence of sinuses |
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Definition
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Term
| this sinus begins at the confluence and courses laterally, its found within the external border of tentorium cerebelli, and passes anteriorly toward the petrous portion of the temporal bone to sigmoid sinus |
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Definition
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Term
| this sinus extends from the transverse sinus and courses in an S shape along petrous portion to jugular foramen, where it continues in the neck as the internal jugular vein. |
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Definition
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Term
| these two sinuses are found lateral to the sella turcica on each side, they have a cave like appearance |
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Definition
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Term
| this is a polygonal anastomosis between right and left internal carotid arteries and right and left vertebral arteries. |
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Definition
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Term
| the internal carotid artery after entering the cranial cavity will divide into two___________? |
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Definition
| anterior cerebral arteries |
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Term
| these arteries course within the longitudinal fissure of the cerebrum |
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Definition
| anterior cerebral arteries |
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Term
| these arteries course the lateral fissure of the cerebrum |
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Definition
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Term
| these arteries branch off the subclavian artery and travel upward through the foramina in the transverse processes of cervical vertebrae |
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Definition
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Term
| this vessel passes through the foramen magnum and joins the vertebral artery from the opposite side to form? |
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Definition
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Term
| this vessel courses along a groove on the pons and divides into the two__________? |
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Definition
| posterior cerebral arteries |
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