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Extracellular Matrix Review
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Untitled
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Study Notes on Connective Tissue
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BC121
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Summary+of+Connective+Tissue
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Connective Tissue II
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Study Notes on Carbohydrates
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Unit 08 Pt3
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Carbohydrates Lecture Notes
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B3M2C1
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Body Paragraph 1 - Salvation
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🔵 SULFUR + OXYGEN
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solfage to numbers
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Unit 12: Nitrogen & Sulfur
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polyatomics - sulfur & carbon
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Lecture InfoSpeaker / Instructor: InstructorCourse / Subject: Histology / Epithelial tissueMain ThemeEpithelia are cellular sheets that protect, secrete, and absorb; structure (cellularity, polarity, surface specializations) determines function and clinical behavior.Key TakeawaysBarrier principle: "Nothing gets into the body unless it crosses an epithelium." Epithelium is the primary barrier to entry.Polarity: Apical vs basal surfaces differ in structure and function (apical: cilia, microvilli, secretions; basal: attachment to connective tissue).Naming framework: First word = number of layers (simple vs stratified vs pseudostratified); second word = cell shape (squamous = flat, cuboidal, columnar).Special types: Endothelium (lines blood/lymph vessels), mesothelium (lines serous cavities).Function vs structure examples: Simple squamous for fast gas diffusion (alveoli); simple columnar with microvilli for absorption/secretion (intestine); pseudostratified ciliated for mucus clearance (trachea).Regeneration & cancer: Epithelia regenerate very fast; about ~90% of cancers are epithelial in origin (carcinomas).Microvilli vs cilia: Microvilli = plasma membrane extensions increasing surface area for absorption; cilia = motile projections that move mucus/particles.Topics CoveredEpithelium as a barrierStatement: only crosses epithelium enter the body.Example: Swallowed glass passes through lumen but does not enter body tissues unless epithelium breached.Clinical: Paper cut vs deep cut — bleeding indicates breach past epithelium and potential bacterial entry.Cellularity and extracellular spaceCells are tightly packed with almost no extracellular space in epithelial layers.Contrast: connective tissue has abundant extracellular matrix; epithelium lacks ECM and sits on connective tissue for support.Junctions and attachmentsTight junctions / adhesive junctions / desmosomes glue cells together to prevent leakage and maintain integrity.Hemidesmosomes attach epithelial basal surface to connective tissue to prevent lifting.Polarity: apical vs basalApical surface: free surface; may have cilia, microvilli, or secretory specializations; where function (secretion/absorption/movement) occurs.Basal surface: attaches to connective tissue; provides physical support and nutrient supply because epithelium is avascular.Nutrient source: epithelium obtains oxygen/nutrients by diffusion from the vascular connective tissue (areolar connective tissue with capillaries) beneath.Naming system and shapesFirst word = layers: "simple" = one layer; "stratified" = >1 layer; "pseudo(stratified)" = nuclei at different heights but all cells touch basal lamina.Second word = shape of apical cells: squamous = flat (thin for diffusion), cuboidal, columnar = tall (larger volume for secretion/storage).Combined examples: simple squamous, simple columnar, stratified cuboidal, pseudostratified ciliated columnar.Functional relationships and organ examplesSimple squamous: alveoli — minimal thickness for rapid O2/CO2 exchange.Simple columnar (nonciliated, microvilli): small and large intestine — microvilli massively increase surface area for absorption and secretion (mucus, enzymes).Pseudostratified ciliated columnar: trachea and some large bronchi — cilia move mucus ("ciliary escalator") to trap and clear inhaled particles; fallopian tubes use cilia to move egg.Mesothelium: visceral/parietal layers lining serous cavities (pleura, pericardium) — secretes small amount of serous fluid to reduce friction.Surface specializationsMicrovilli: extensions of the plasma membrane that increase apical surface area; abundant in absorptive epithelia (tons of microvilli in intestine).Cilia: motile, pair-like projections that move mucus or fluid along the epithelial surface (trachea, bronchi, fallopian tube).Regeneration, pathology, and clinical relevanceHigh regeneration rate of epithelia allows rapid repair but increases cell division risk; most cancers (~90%) are epithelial (carcinomas).Chronic irritation increases proliferation and mutation risk: e.g., chronic acid reflux / heartburn → repeated esophageal epithelial damage → increased risk of esophageal cancer.Functional tradeoffs: thin epithelia (simple) allow fast crossing of substances but provide less physical protection; stratified epithelia provide greater protection (uppercase P for emphasis when multiple layers).Pseudostratified vs stratified clarificationPseudostratified: nuclei at different levels create appearance of layers; all cells contact basal surface (not truly stratified).True stratified: cells stack and only basal layer contacts basal lamina; apical cells may be dead (e.g., outer keratinized skin layers).Practical/teaching notes and exam focusInstructor emphasized understanding structure → function instead of rote memorization of locations.Naming rules and visual recognition (apical shape, number of layers, presence of cilia/microvilli) are frequent exam targets.Instructor called out key test points: pseudostratified vs stratified distinction, simple squamous in alveoli, simple columnar in gut, pseudostratified ciliated in respiratory tract, epithelial regeneration and cancer risk.
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Bab 1: Kerajaan Alam Melayu
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📝 THEOC 1301 — QUIZ 1 COMPLETE STUDY GUIDE 🟣 SESSION 1: INTRODUCTION TO THEOLOGY slide 2 — overview: theology theology = a reasoning process about god and all he has made known to us through divine revelation. THEO2301 Session01 (1 per page)(1).pdf in simpler words: theology is using reason/thinking to understand what god has revealed. MEMORIZE: theology = reasoning about god + divine revelation ⸻ slide 3 — overview: oikonomia oikonomia = economy it means: * stewardship * administration it refers to: the works by which god reveals himself and communicates his life. THEO2301 Session01 (1 per page)(1).pdf MEMORIZE: oikonomia = stewardship/administration + god revealing himself and communicating his life ⸻ slide 4 — the bible the bible is: * the primary source for studying theology * the inspired and inerrant word of god * god’s self-communication to us * given for the sake of our salvation the slide also says: “the study of the sacred page should be the very soul of sacred theology” — dei verbum 24 THEO2301 Session01 (1 per page)(1).pdf what you need to understand: the bible is extremely important to theology because it is god communicating himself to us, and theology studies it to understand what god has revealed. MEMORIZE: bible = primary source + inspired/inerrant word of god + god’s self-communication + salvation ⸻ slide 5 — the church fathers the slide connects theology with: “faith seeking understanding” this is from st. anselm. THEO2301 Session01 (1 per page)(1).pdf fathers the fathers are: * orthodox * holy * pre-800 ad doctors doctors are people who made significant contributions through profound understanding of the faith. THEO2301 Session01 (1 per page)(1).pdf easiest way to remember: fathers → orthodox + holy + before 800 doctors → significant contributors + profound understanding ⸻ slide 6 — the magisterium what is the magisterium? the official teaching authority of the church. the pope’s primary duties regarding christ’s teaching: 1. protect 2. interpret 3. pass down THEO2301 Session01 (1 per page)(1).pdf MEMORIZE: magisterium = official teaching authority pope = protect, interpret, pass down ⸻ ⭐ slide 11 — the vocation of the theologian 🚨 ESSAY TOPIC this is one of the most important sections. the theologian’s vocation is: to pursue an ever-deeper understanding of the word found in scripture, handed on by tradition, in communion with the magisterium. THEO2301 Session01 (1 per page)(1).pdf the theologian also: * responds to the invitation of truth * seeks to understand faith * helps the people of god give an accounting for their hope * seeks truth so people can become disciples * communicates the faith * serves love by giving people better knowledge of god THEO2301 Session01 (1 per page)(1).pdf basically: the theologian is supposed to understand the faith more deeply and help other people understand it too. ⭐ essay formula: deeper understanding → scripture + tradition → communion with magisterium → help people understand faith → communicate faith → better knowledge of god ⸻ slide 12 — vocation of the theologian, continued the theologian should: 1. deepen their own faith they unite: research + prayer 2. use proper intellectual standards they should be attentive to: * epistemological requirements * critical standards * rational verification 3. grow spiritually they should make a spiritual effort to grow in: virtue + holiness THEO2301 Session01 (1 per page)(1).pdf remember: the theologian needs BOTH: intellectual growth → research + critical thinking + rational verification spiritual growth → prayer + virtue + holiness ⸻ slide 13 — vocation of the theologian, continued theologians understand revelation through: * philosophical concepts * historical disciplines * human sciences BUT: the ultimate normative principle is revealed doctrine. their teaching must in no way harm the doctrine of the faith. THEO2301 Session01 (1 per page)(1).pdf there is freedom within the church’s faith. the theologian should also be open to: * objective discussion * fraternal dialogue * modifying their own opinions THEO2301 Session01 (1 per page)(1).pdf ⭐ important idea: theologians can think, research, and discuss, but their work remains within the church’s faith and revealed doctrine. ⸻ ⭐ slide 17 — magisterium & theology (collaborative) 🚨 ESSAY TOPIC the magisterium and theology have the same goal: preserving the people in truth. but they have different roles: magisterium → authentically teaches doctrine theology → strives to clarify revelation with regard to reason the theologian must present doctrine with full accuracy and integrity. the magisterium’s infallible pronouncements call for assent of theological faith. THEO2301 Session01 (1 per page)(1).pdf memorize: same goal, different roles. ⸻ slide 18 — magisterium & theology (continued) definitive truths the magisterium’s definitive truths concerning: faith + morals must be: firmly accepted and held. non-definitive teaching teaching meant to: * aid understanding * guard against error calls for: religious submission of will and intellect. theologians theologians are expected to loyally submit to the teaching of the magisterium, including when it intervenes authoritatively. THEO2301 Session01 (1 per page)(1).pdf memorize this distinction: definitive → firmly accepted and held non-definitive → religious submission of will + intellect ⸻ slide 19 — magisterium & theology (continued) the relationship isn’t necessarily perfect agreement all the time. the slide says magisterial documents might not be free from all deficiencies. there can also be: non-hostile tensions between theologians and the magisterium. these tensions can become a dynamic factor stimulating both when they practice dialogue. THEO2301 Session01 (1 per page)(1).pdf basically: disagreement/tension isn’t automatically bad. non-hostile tension + dialogue → can stimulate both ⸻ slide 20 — magisterium & theology (continued) the theologian should not present personal opinions or divergences as if they were non-arguable conclusions. also: conscience is NOT an autonomous and exclusive authority for deciding doctrinal truth. obedience of faith leads to loyal acceptance of the magisterium’s teaching. if difficulties continue, the theologian should: make the problems known to the magisterium — NOT the mass media. they should also remain open to a deeper examination of the question. THEO2301 Session01 (1 per page)(1).pdf ⭐ remember: personal opinion ≠ unquestionable doctrine problem → magisterium, not mass media ⸻ slide 24 — dissent: following one’s conscience the slide says: “following one’s conscience” cannot legitimate dissent. a right conscience is: * illumined by faith * based on objective moral law * has an upright will * pursues the true good things that are NOT legitimate include: * polling public opinion * pressuring through public opinion * claiming there is a consensus among theologians * presenting theologians as a prophetic “base” THEO2301 Session01 (1 per page)(1).pdf important: the slide isn’t saying conscience doesn’t matter. it’s saying following your conscience cannot simply be used as a justification for dissent. ⸻ 🟢 slide 27 — why study theology? truth is food + truth is light revealed truth = food we need to be nourished by it. the eucharist ensures we aren’t entirely unnourished. doctrine = light much of reality can only be known if god tells us. the church helps communicate some truths even to people who aren’t very interested. living undernourished or half in the dark is a pity. THEO2301 Session01 (1 per page)(1).pdf MEMORIZE: truth = food doctrine = light ⸻ slide 28 — why study theology? ignorance is not a virtue ignorance is not a virtue. why? knowledge serves love. more knowledge of god: → helps us love him more → removes misunderstandings → gives us more reasons to love him. THEO2301 Session01 (1 per page)(1).pdf memorize: knowledge of god → greater love ⸻ slide 29 — ignorance is not a virtue continued the slide says millions are spiritually “starved” because they lack truth and don’t have the eucharist. the slide says spiritual starvation should largely be relieved by the laity, because they are in contact with those who need it. the laity need to understand the great dogmas: * for the sake of those who are hungry * and for their own sake. THEO2301 Session01 (1 per page)(1).pdf key idea: laity → understand the great dogmas → help relieve spiritual starvation ⸻ slide 30 — ignorance is not a virtue continued studying theology should be accompanied by: reading scripture because scripture has a wonderful power to make truths: come alive in the soul. THEO2301 Session01 (1 per page)(1).pdf ⸻ 🔵 SESSION 2 — FAITH & REASON slide 2 — faith & reason main idea: there can’t be a real discrepancy between faith and reason. why? because the light of both comes from god. THEO2301 Session02 (1 per page).pdf memorize: faith + reason don’t truly contradict because both come from god. ⸻ slide 3 — faith defined you have THREE definitions. biblical: “the assurance of things hoped for, the conviction of things not seen.” dogmatic: faith is: * a gift of god * a human act * complete submission of intellect + will to god common sense: faith = complete trust and confidence in someone. THEO2301 Session02 (1 per page).pdf MEMORIZE THIS: biblical → assurance of things hoped for dogmatic → gift of god + intellect/will submitted to god common sense → trust/confidence ⸻ slide 4 — knowledge revealed by god knowledge directly revealed by god is: more certain than knowledge gained through mere human experience. THEO2301 Session02 (1 per page).pdf that’s basically the entire slide. ⸻ slide 5 — faith is absolute trust faith = absolute trust in god. and this is: eminently reasonable. THEO2301 Session02 (1 per page).pdf again, this reinforces the idea that faith isn’t opposed to reason. ⸻ slide 9 — mysteries of christian faith the mysteries of christian faith: transcend human reason BUT never contradict reason. THEO2301 Session02 (1 per page).pdf THIS DISTINCTION IS IMPORTANT: transcend = go beyond contradict = go against so: faith can go beyond what human reason can fully understand without contradicting reason. ⸻ slide 10 — qualities of faith faith is: * personal + communal relationship * seeks understanding * friend of reason * necessary for salvation * gift of grace * free human act * believes with conviction in a message THEO2301 Session02 (1 per page).pdf memorize the list. ⸻ slide 11 — challenges to faith 1. “wall” of separation faith should have no impact on the state/society. 2. ideological secularism the idea that: we are self-sufficient + self-explanatory therefore: faith isn’t needed. THEO2301 Session02 (1 per page).pdf ⸻ slide 16 — complementary forms of wisdom there are two: philosophical wisdom the naturally limited capacity of the intellect to explore reality. theological wisdom explores the contents of faith based upon revelation. THEO2301 Session02 (1 per page).pdf memorize: philosophical → intellect → reality theological → revelation → faith they are complementary, meaning they’re meant to work together. ⸻ slide 17 — faith + reason this is another VERY important contrast: without faith: reason is in danger of losing sight of its final goal. without reason: faith has stressed feeling and experience. THEO2301 Session02 (1 per page).pdf easiest way: reason needs faith faith needs reason ⸻ slide 18 — st. bonaventure this is basically a warning about separating intellectual study from spiritual life. the slide says theologians should recognize the inadequacy of things like: * reading without repentance * knowledge without devotion * research without wonder * prudence without joy * action divorced from religion * learning separated from love * intelligence without humility * study without divine grace * thought without wisdom inspired by god THEO2301 Session02 (1 per page).pdf don’t worry about memorizing every word. remember the overall point: studying and intelligence aren’t enough by themselves; they need devotion, humility, love, religion, and divine grace. ⸻ slide 19 — final conclusion 1. god can be known with certitude by reason from created things. 2. revelation is necessary because we are ordained for a supernatural end that surpasses human understanding. THEO2301 Session02 (1 per page).pdf easiest way: reason → can know god revelation → necessary because supernatural end surpasses human understanding
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