Meninges & Dural Folds Simplified | Layers, Spaces & Functions скачать в хорошем качестве

Meninges & Dural Folds Simplified | Layers, Spaces & Functions

For more cadaveric images and question banks, visit https://bootcamp.com/med-school The meninges not only protect the brain but also create important venous sinuses and dural folds that influence clinical outcomes. In this lesson, we explore the dura, arachnoid, and pia mater, the CSF-filled subarachnoid space, and how the falx cerebri, tentorium cerebelli, falx cerebelli, and diaphragma sellae separate and support brain structures. Real clinical cases, including aneurysm-related subarachnoid hemorrhage and pituitary surgery, highlight why understanding these structures is essential. What you’ll learn: 1. Layers of the scalp and meninges (dura, arachnoid, pia) 2. The three major meningeal spaces: epidural, subdural, subarachnoid 3. Venous sinuses formed by dural reflections 4. Blood supply: middle meningeal artery and its clinical relevance 5. Dural folds: falx cerebri, tentorium cerebelli, falx cerebelli, diaphragm sellae 6. Clinical cases: pituitary adenoma (diaphragm sellae) & subarachnoid hemorrhage (Circle of Willis aneurysm) By the end of this video, you’ll understand how the meninges protect the brain, how dural folds maintain structure, and how clinical pathologies (like hemorrhages and tumors) relate to this anatomy. ⏱️ Timestamps 0:00 – Intro 0:19 – Layers of the scalp (SCALP mnemonic) 0:56 – Skin, connective tissue & aponeurosis (epicranial aponeurosis) 1:55 – Loose areolar connective tissue & periosteum 2:36 – Skull bone as protection 3:05 – Meninges overview: dura mater, arachnoid mater, pia mater 3:27 – Dura mater layers (periosteal & meningeal) 3:43 – Epidural space & potential space concept 4:06 – Venous sinuses (superior sagittal sinus) 4:27 – Arachnoid mater & subdural space 5:07 – Pia mater & subarachnoid space with CSF 5:26 – CSF circulation in subarachnoid space 5:52 – Comparing epidural, subdural, and subarachnoid spaces 6:13 – Clinical relevance: true vs potential spaces 6:29 – Blood supply of the meninges (middle meningeal artery) 7:09 – Foramina spinosum & accessory middle meningeal artery 7:32 – Dural folds overview 7:53 – How dural folds form from dura mater layers 8:35 – Falx cerebri (separates cerebral hemispheres) 9:49 – Tentorium cerebelli (separates cerebrum & cerebellum) 10:06 – Falx cerebelli (separates cerebellar hemispheres) 10:30 – Diaphragma sellae (covers pituitary gland) 10:54 – Functions of dural folds (support & protection) 11:11 – Review of meninges layers with labeled diagram 12:19 – Clinical case 1: pituitary adenoma & diaphragma sellae 12:45 – Clinical case 2: subarachnoid hemorrhage & falx cerebri 13:26 – Falx cerebelli vs falx cerebri vs tentorium cerebelli recap 13:46 – Wrap-up & references This lesson is especially helpful for medical students, or anyone reviewing for anatomy exams. If it helps you out, give it a like, leave your questions in the comments, and subscribe for more Bootcamp videos. TikTok:   / medschoolbootcamp   INSTAGRAM:   / medschoolbootcamp   #medschoolbootcamp #medicine #Medical #MedStudent #MedicalStudent #MedSchool #MedicalSchool #Doctor #Resident #Hospital #MD #Med #Anatomy #Science #Whitecoat #WhiteCoatCeremony #MS1 #ms2 ___________________________________________________________________ meninges explained, dural folds, dura mater, arachnoid mater, pia mater, epidural space, subdural space, subarachnoid space, falx cerebri, tentorium cerebelli, falx cerebelli, diaphragm sellae, brain protection layers, meninges neuroanatomy, meningeal arteries, middle meningeal artery, circle of Willis hemorrhage, subarachnoid hemorrhage, pituitary gland diaphragm sellae, neuroanatomy made easy, med school anatomy review, USMLE neuro review