𝑻𝒐𝒅𝒂𝒚’𝒔 𝒔𝒕𝒖𝒅𝒆𝒏𝒕 𝒊𝒔 𝒂 𝒇𝒖𝒕𝒖𝒓𝒆 𝒅𝒐𝒄𝒕𝒐𝒓 🩺
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من سلك طريقًا يلتمس فيه علمًا سهّل الله له به طريقًا إلى الجنة 𝑭𝒓𝒐𝒎 𝒔𝒕𝒖𝒅𝒆𝒏𝒕 →𝒇𝒖𝒕𝒖𝒓𝒆 𝒅𝒐𝒄𝒕𝒐𝒓. 𝑺𝒕𝒖𝒅𝒚 • 𝑰𝒏𝒔𝒑𝒊𝒓𝒆 •𝑮𝒓𝒐𝒘 • 𝑴𝒆𝒅𝒊𝒄𝒊𝒏𝒆🩺✨
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{وَأَن لَّيْسَ لِلْإِنسَانِ إِلَّا مَا سَعَىٰ * وَأَنَّ سَعْيَهُ سَوْفَ يُرَىٰ * ثُمَّ يُجْزَاهُ الْجَزَاءَ الْأَوْفَىٰ}.
عندكم هذي
شوي اسئلة مرات تجي في Blood vessels
Q1: What are the three layers of a blood vessel wall?
Q2: What is the function of the fenestrations in the internal elastic lamina?
Q3: Why do large blood vessels need Vasa Vasorum?
Q4: What is the main component of the Tunica Media in large arteries vs. medium arteries?
Q5: What is the main structural difference between post-capillary venules and muscular venules?
Q6: State three differences between a medium-sized artery and a medium-sized vein under the microscope.
وتعرفيه وعندك
Cell of epidermis: 
وهذا حل الاسئلة زي ما طلبتوا مني... 🍁
1. Types of CapillariesContinuous
🔸Endothelium: continuous
🔸Basement membrane: continuous
🔸Low permeability
🔸Site: muscle, skin, CNS (BBB)
🟡 Fenestrated
🔸Has pores (fenestrae)
🔸↑ permeability
🔸Some with diaphragm
🔸Site: kidney, endocrine glands, intestine
🔴 Sinusoidal (Discontinuous)
🔸Wide irregular lumen
🔸Large gaps + incomplete BM
🔸Highest permeability
🔸Site: liver, spleen, bone marrow
2. Pericyte Function3. LM vs EM✧L/M (Light Microscope):
🔸Shows the general structure of the vessel wall
🔸Identifies the three layers: Tunica intima, Tunica media, Tunica adventitia
🔸Shows basic tissue organization
✧ E/M (Electron Microscope):
🔸Shows ultra-structural details
🔸Cell junctions between endothelial cells
🔸Endothelial fenestrae (pores)
🔸Basement membrane details
🔸Pericyte structure and fine features
4. Skeletal vs Cardiac MuscleSkeletal
🔹Voluntary
🔹Long cylindrical fibers
🔹Many nuclei (peripheral)
🔹No intercalated discs
🔹Fatigues
🟥 Cardiac
🔹Involuntary
🔹Branched cells
🔹1–2 central nuclei
🔹Intercalated discs present
🔹Continuous rhythmic contraction
⭐ مراجعه ع السريع Capillaries = (Closed → Open → Very Open)
✧ Continuous → Fenestrated → Sinusoidal
✧Muscle:
° Skeletal = “Power”
° Cardiac = “Forever beating”
- كَبِّرُوا ليبلغ تكبِيركُم عِنّانَ السّماء
-اللَّهُ أَكْبَرُ كَبِيرا وَالْحَمْدُ لِلَّه كَثِيرًا وَسُبْحَانَ اللَّهِ بُكْرَةً وَأَصِيلًا
-لَبَّيْكَ اللَّهُمَّ لَبَّيْكَ لَبَّيْكَ لاَ شَرِيكَ لَكَ لَبَّيْكَ إِنَّ الْحَمْدَ، وَالنِّعْمَةَ لَكَ وَالْمُلْكَ، لاَ شَرِيكَ لَكَ..🤍
وإذا سجدت فأطل السجود فإن البلاء لا يستقر على ظهرِ ساجد.
قيامكم اثابكم الله 🌸
