Animal TissuesAnimal Tissuesالحيوانية الحيوانية االنسجة االنسجة

Categories of TissuesCategories of Tissues

Epitheliumطالئية Connective ضامه Muscle عضلية Nervous عصبية

EpitheliumEpitheliumLinesيبطن , covers يغطي , and protects يحمي other

tissues and organs االخري واالنسجة .االعضاءCharacterized by بـ : يتميز

Cells tightly junked togetherjunked together بعضها على قريبة الخالياThe presence of a cell secretion called the basement basement

membranemembrane. قاعدي غشاءNamed by:

Cell shapeCell shape الخاليا الخاليا شكل شكلOther characteristics of the cells. الخاليا خصائص

Squamous حرشفي حرشفي , , Cuboidalمكعبمكعب , and Columnar عموديعمودي

Squamous EpitheliumSquamous Epithelium طالئي طالئي حرشفيحرشفي

Cells very thinصغيرة , Simple Squamous Epithelium طالئي طالئي

بسيط بسيط حرشفي حرشفي Air sacs of respiratory التنفسي الجهاز في الهواء اكياس Lining of blood vessels الدموية االوعية heart and , بطانة

lymphatic tubes واللمف القلب انابيب

Stratified Squamous Epithelium Stratified Squamous Epithelium حرشفي حرشفي طالئي طالئيالطبقات الطبقات عديد عديد

Skinالجلد Vagina االنثى مهبل Esophagusالمريء Mouth الفم

Examples of Simple Squamous Examples of Simple Squamous EpitheliumEpithelium

Stratified Squamous EpitheliumStratified Squamous Epithelium

Cuboidal EpitheliumCuboidal Epithelium طالئي طالئي مكعبمكعب Cells cube shaped- الشكل مكعبة خاليا

Present in فـ موجود 1. Kidney tubules الكلية انابيب 2. Duct and small glands الصغيرة والغدد القنوات 3. Surface of ovary المبيض سطح

Columnar EpitheliumColumnar Epithelium طالئي طالئي عموديعمودي

Elongated cells مستطيلة much longer , خالياthan they are wide عرضها من اكبر الخلية . طول Simple Columnar Epithelium طالئي طالئي

بسيط بسيط عمودي عمودي A single layer of cells that line the digestive tract,

gallbladder and excretory ducts of some glands. Pseudostratified ciliated columnar epithelium Lines the bronchi, trachea, uterine tubes and some of the

uterus. Propels mucus or reproductive cells by ciliary action.

Simple Columnar epitheliumSimple Columnar epithelium

Pseudostratified Ciliated Pseudostratified Ciliated Columnar EpitheliumColumnar Epithelium

Connective TissueConnective Tissue الضام الضام النسيج النسيج Characterized by the cells widely separated from each

other in a matrix that is produced by the cells. تكون الخاليانفسها الخاليا تنتجها بينية مادة خالل من بعضها عن معزولة

Tissue protects and supports لألنسجة وتدعيم حماية. االخرى

Cell Matrix composed of two regions Ground

Liquid (sol), Gel, Gum or solid Fibers

Non-elastic (= white or Collagen) Elastic (= yellow fibers)

Types of Connective tissue الضام النسيج انواع

Types of Connective TissueTypes of Connective Tissue

( ) Loose Areolar Connective Tissue هوائيهوائي

Dense Connective TissueAdiposeدهنيدهني CartilageCartilageغضروفيغضروفي BoneBoneعظميعظمي BloodBloodالدمالدم

Loose Connective Tissue Loose Connective Tissue (Areolar)(Areolar)

Gel like ground with both elastic and non-elastic fibers running though the ground in many directions.Wraps organsUnder the skin

Dense Regular Connective Dense Regular Connective TissueTissue

Nuclei and fibers arranged in parallel rows.Tendons and ligaments واألربطة االوتارFibers mostly non-elastic

Adipose (Fat)Adipose (Fat) Function as storage cells for adipose (lipids) Adipose cells contain a large vacuole which in

the live cell contains lipids. Cell nucleus and cytoplasm are pushed out to

edge of cell membrane.

CartilageCartilageالغضروفالغضروف Ground of matrix is gum like. Cells are found in Lacunaeمحافظ within the

matrix. Fibers may be elastic or non-elastic, or a form of

non-elastic called reticularشبكي(where the non-elastic fibers of very thin) Hyaline CartilageHyaline Cartilage زجاجي زجاجي غضروف example on the- غضروف

ends of bones Elastic CartilageElastic Cartilage مرن مرن غضروف example ear cartilage - غضروفNon-elastic Cartilage مرن .example nose cartilage - غير

Hyaline cartilageHyaline cartilage

Elastic CartilageElastic Cartilage

BoneBoneGround of matrix is Solid (Calcium carbonate).Has blood supply and nerves running through

the Haversian canal systems.

Vascular Tissue (Blood)Vascular Tissue (Blood) النسيج النسيج) الدم ) الوعائي (الضام الدم ) الوعائي الضام

Liquid matrix = plasma 90% water10%Plasma proteins, electrolytes, hormones, oxygen,

glucose etc. Formed elements

ErythrocytesErythrocytes -48billion(female) to 54 billion (male) cell / ml of blood in humans. Mammals are enucleated while rest of the vertebrates they have nuclei

LeukocytesLeukocytes -about 7.5 million / ml of blood PlateletsPlatelets -blood clotting

BloodBlood

Muscle TissueMuscle Tissue Tissue with cells having fibers specialized for

contraction.Skeletal MuscleSkeletal Muscle (Striated, voluntary)

Parallel elongated cells (fibers) multinucleated and each cell is the length of the muscle. Light meat, Dark meat—Slow twitch, fast twitch muscle

Smooth MuscleSmooth Muscle (Visceral, involuntary) Cells are long and tapered. Organized into sheets of muscle.

Cardiac MuscleCardiac Muscle Intercalated disc Myogenic branched

Skeletal MuscleSkeletal Muscle

Smooth MuscleSmooth Muscle

Cardiac MuscleCardiac Muscle

Nervous TissueNervous TissueCells specialized to polarize and

depolarize.Cell is a neuron

End of Tissue presentationEnd of Tissue presentation