Histology OSPE 2025-2026

Identify the tissue and mention one site

Simple squamous epithelium

Aorta

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Simple squamous epithelium

Aorta

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Simple squamous epithelium

Aorta

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Keratinized stratified squamous epithelium

Epidermis of the skin

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Keratinized stratified squamous epithelium

Epidermis of skin

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Neuroepithelium

Taste buds

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Neuroepithelium

Taste buds

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Neuroepithelium

Taste buds

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Non-keratinized stratified squamous epithelium

Esophagus

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Non-Keratinized stratified squamous epithelium

Esophagus

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Non-keratinized stratified squamous epithelium

Oesophagus

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Non-keratinized stratified squamous epithelium

Oesophagus

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Non-keratinized stratified squamous epithelium

Oesophagus

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Simple cuboidal epithelium

Thyroid follicles

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Simple cuboidal epithelium

Thyroid follicles

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Simple cuboidal epithelium

Thyroid follicles

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Simple cuboidal epithelium

Thyroid follicles

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Transitional epithelium

Urinary bladder

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Transitional epithelium

Urinary bladder

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Transitional epithelium

Urinary bladder

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Transitional epithelium

Urinary Bladder

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Transitional epithelium

Urinary Bladder

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Dense regular collagenous CT

(Main) in tendons

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Dense regular collagenous CT

Tendons Other

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Dense regular collagenous CT

Tendons Other

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Dense regular collagenous CT

Tendons Other

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Unilocular adipose CT

Adult subcutaneous tissue

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Unilocular Adipose CT

Adult subcutaneous tissue

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Mucoid CT

Umbilical cord

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Mucoid CT

Umbilical cord

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Dense regular elastic CT

Aorta

Ver Hoef’s stain

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Dense regular elastic CT

Aorta

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Dense regular collagenous CT

Tendons

Other sites are ligaments and Corneal stroma

Answer the questions in these following pictures

1-Lipid

2-Transmembrane protein

3-Sugar chain of glycolipid

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1- (7.5-10)

2- Trilaminar appearance

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1-Mitochondia

2-Cristae

3-Power house of the cell

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1-Free ribosomes /Polysomes

2-Basophilic

3-Synthesize protein for the use of the cell

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1-RER

2-Basophilic

3-segregation of protein

And initial glycosylation of protein

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1-Glycogen metabolism in liver cells and Lipid biosynthesis and etc…

2-Muscles testis adrenal gland ovary and Liver

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1- Golgi apparatus

2-

A- Transfer vesicles

B- Golgi saccules

C- Secretory vesicles

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1-Golgi apparatus

2-Synthesis of GAGs in CT ECM,

Final glycosylation of proteins.

Concentrate package and store protein

Form primary lysosomes

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1-Secondary Lysosomes

2-

A- Heterolysosomes

B-Multivesicular Body

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A- Actin filaments

B- Myosin filaments

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1-Centrioles

2-Formation of Cilia/Flagella

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1-Shaft of cilia

2- 20 microtubules (9 doublets and 2 central singlets)

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1-shaft of cilia

2-EM (Surface scanning/ SEM)

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1-Glycogen granules

2-Best’s carmine

3-LIver

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1-Alpha glycogen granules under EM

2- alpha types

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1-Beta glycogen granules

2-Beta types

3-Muscles

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1-Lipid inclusion/ droplets

2-Osmic acid

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1-Rounded

2-MultiLobed

3-kidney shaped

Arrow- Nucleolus

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Vesicular/ open-face nucleus

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Condensed nucleus

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N: Nucleolus

1-Peripheral Chromatin

2-Nucleolar-associated chromatin

3-Chromatin islands

4-Nuclear sap

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1- Vesicular Nucleus

Arrow- Nuclear membrane

3- 1) Nucleolus

2)Peripheral protein

3) Nuclear sap