Histology 2nd year practical Flashcards by Basel selim

Identify the 3 surfaces
of the lip a, b & c.

Identify 1, 2 , 3.

a: Red margin

b: Skin surface

c: Inner (mucous) surface

1: hair follicle

2: Orbicularis oris
(skeletal muscle)

3: Labial glands

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Identify the type of papillae

a: Circumvallate papilla

b: Filiform papilla

c: Fungiform papilla

d: Foliate papillae

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They belong to a modified type of epithelium
known as ——–

-They are located at the sides of which type of
papillae.

Taste buds
Neuroepithelium
Foliate papillae

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This is a section in lip

-Identify the surface.

-Identify 1, 2 , 3.

Inner (mucous) surface
1: Non-keratinized stratified squamous epithelium

2: Labial glands

3: Skeletal muscle (Orbicularis oris)

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-Identify type of papillae and its lining epithelium——–

The red , yellow and blue arrows points to —————,—-
———–& —————-

Circumvallate papilla
Non-keratinized stratified squamous epithelium
Red arrow: Valley
Yellow arrow: Taste buds
Blue arrow: Von Ebner’s glands

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A. This organ is…….. (be specific).

B. The epithelium pointed to by the red arrow is…….

C. What is the layer indicated by the yellow line?

D. What is the layer indicated by the black line?

E. What is the layer indicated by the blue line? It is formed
of ………… & ……..… layers.

F. The yellow arrow points to ……. while the blue arrow
points to ……..…….

A. Esophagus dog

B. Non-keratinized stratified squamous epithelium

C. Mucosa

D. Submucosa

E. Musculosa – inner circular & outer longitudinal

F. Oesophageal mucous glands – duct

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A.This is a section in ……… (be specific).

B.What are the structures pointed to by the yellow & black arrows?

C.The red star lies in ……while the black one lies in ……..

D.The layer limited by the green line is …….while that
limited by the red line is …….

A. Esophagus cat

B. Non-keratinized stratified squamous epithelium
– muscularis mucosa

C. Lamina propria – submucosa

D. Inner circular smooth muscle layer – outer
longitudinal smooth muscle layer

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1: Lumen

2: Non-keratinized stratified squamous epithelium

3: CT corium

4: Muscularis mucosa

5: Mucous glands

6: Musculosa:

6a: Inner circular smooth muscle fibers.

6b: Outer longitudinal smooth muscle fibers

7: Adventitia

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a- The arrow points to —————————

b- It is characterized by being ————– & ————–

c- The organ is————————–

a: pit

b: Narrow & short

c: Fundus of the stomach

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A. A section in …….. (be specific)

B.The black arrow points to …….

C. The black line traverses…..layer

D. The cell pointed to by the yellow arrow is ……
while that pointed to by the red arrow is ……

E. The blue star lies in ………

A. Fundus of the stomach

B. Pit

C. Mucosa

D. Parietal cells
peptic cells

E. Muscularis mucosa

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A. A section in ……… (be specific).

B.The letter P represents ..….while
G represents ….. whose type is …….

C. MM represents ………

D. The blue line traverses ….……. layer.

E. S represents …., IC represents…. & OL represents ……

A. Pylorus of the stomach

B. Pit - pyloric glands – coiled branched
tubular glands

C. Muscularis mucosa

D. Mucosa

E. S: Submucosa

IC: Inner circular smooth muscle fibers

OL: Outer longitudinal smooth muscle fibers

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A. This is a section in ……………………..

B. Glands outlined by the black circle are called
……. They lie in .…… layer. Their type is ……

C. The glands outlined by the red circle are called
……They lie in …….. layer.

A. Gastero-oesophageal junction

B. Black circle: Oesophageal glands
- Submucosa
- Compound tubule-alveolar glands

C. Red circle: Gastric glands – C.T corium

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a) Blue rectangle
surrounds……

b) Yellow shape
surrounds……

c) Green lines
indicate ……

d) The black arrow
points to ———

a) Blue rectangle: villus

b) Yellow shape: crypt

c) Green line: CT corium

d) Black arrow: muscularis mucosa

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In the shown Intestinal
Villi; name the cells
outlined by the black &
blue circles.

Black circle: enterocytes

Blue circle: goblet cells

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This is
a section
Showing
intestinal
crypts;

Identify
1–2–3-4

1: goblet cells

2: CT corium

3: muscularis mucosa

4: Paneth cells

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a) Identify the organ (Be
Specific).

b) Identify the structures indicated by the green, red, yellow and black arrows.

c) Identify the layer
marked by the black line.

d) The organ outlined by
the black circle is ………

a) Duodenum

b) Green: villi

Red: crypts
Yellow: muscularis mucosa
Black: Brunner’s glands

c) Musculosa

d) Pancreas

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a) Identify the organ (Be Specific).

b) What are the structures pointed to by the black , yellow & white arrows?

c) Identify the layer marked by the green line.

a) Ileum

b) Black: villi
Yellow: crypts
White: Peyer’s patches

c) Musculosa

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This section shows intestinal villi:

1) Identify the cell marked by the letter A & B.

2) Identify the layer marked by the red line.

1)
A: Enterocyte
B: Goblet cell

2) CT corium

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A. This is a section in ……….
B. Name the abbreviations marked by the letters:

S – D – PS – G- CM - LM

A. Pyloro-duodenal junction

S: Pylorus side

D: Duodenum side

PS: Pyloric sphincter

G: Brunner’s glands

CM: Inner circular smooth muscle fibers

LM: Outer longitudinal smooth muscle fibers

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identify the organ

Identify the structure indicated by arrow

Identify the cell indicated by the arrow

Identify the later indicated by the arrow

Large intestine (colon)
Arrow 38: crypt
Arrow 39: Goblet cell
Layer 40: muscularis mucosa

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Identify organs a and b
.
Mention 2 criteria for identification.

Organ a:

Appendix
-NO villi.
-Lymphatic nodules in the submucosa are
present all around.

Organ b:

Ileum
-Presence of villi which are rudimentary over
the lymphatic nodules.
-Lymphatic nodules are present in the
submucosa of the anti-mesenteric border only

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Identify the different organs of the GIT (a,b,c & d).

Mention the most important identifying mucosal feature.

a: Oesophagus
Mucosal lining: non-keratinized stratified
squamous
epithelium

b: Duodenum
Brunner’s glands in submucosa

c: Large intestine (colon)
No villi

d: Fundus of the stomach
Narrow, short pits …….Crowded glands

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1 & 2 are two sections in the lower part of the
intestinal crypts:

A.Section 1 shows the crypts of the ……..intestine,

B.while section 2 shows the crypt of the …..….
intestine.

C.Identify the cell marked by the letter A.

D.Identify the cell marked by the blue arrow.

E.Identify the layer marked by the yellow line.

A. Small intestine

B. Large intestine

C. Paneth cells

D. Goblet cells

E. Muscularis mucosa

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A.This is a section in …….
B.The red line traverses …….
Layer.

C. The blue arrow points to …….cell.

D. The blue star lies in ……..

E. The red arrow points to ……..

F. The green line lies in …….layer.

G. The blue line lies in ……layer which is formed
of ……. (yellow arrow)& …….. (green arrow).

A. Large intestine (colon)

B. Mucosa

C. Goblet

D. CT corium

E. Muscularis mucosa

F. Submucosa

G. Musculosa – Inner circular – tenia coli

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A.This is a section in ……… (be specific). B. What are the layers traversed by the yellow & red lines? C. The yellow circle surrounds …….

A. Appendix (rabbit) B. Yellow line: mucosa Red line: submucosa C. Lymph follicles

1- Kidney (cortex) 2- Arrow: capsule Stars: Malpighian renal corpuscles /glomeruli 3- Arrowheads: Bowman’s (capsular) space Lining: simple squamous epithelium

A- Kidney (cortex) B- 1: Parietal Layer of Bowman’s Capsule 2: Bowman’s (Capsular) Space 3: Renal Blood Glomerulus 4: Macula Densa 5: Distal Convoluted Tubule 6: Proximal convoluted tubule

1- Kidney (cortex) 2- a: Malpighian renal corpuscle b: Proximal convoluted tubules c: Distal convoluted tubules 3- Bowman’s (capsular) space

1- Circled structure: Juxta-glomerular apparatus 2- Asterix: Malpighian renal corpuscle 3- Blue arrow: Bowman’s space Yellow arrow: Podocytes (OR visceral layer of Bowman’s capsule) Red arrow : parietal layer of Bowman’s capsule

1- Kidney (cortex) 2- White arrow: Macula densa 3- Asterix: Malpighian renal corpuscle 4- Blue arrow: Proximal convoluted tubule Criteria: Narrow lumen & indistinct cell boundaries, ………

1- Urinary bladder 2- A: Uroepithelium (transitional epithelium) B: C.T. corium C: Musculosa

1- The ureter 2- C.T. corium 3- Transitional epithelium (urothelium) 4- Black line: mucosa 5- (C): Musculosa

a: Mucous acini pale basophilic cytoplasm basal flattened nuclei …… b: Serous acini deeply basophilic cytoplasm central rounded nuclei …..

a: parotid gland b: human submandibular gland c: sublingual gland

MA: mucous acini SA: serous acini SD: serous demilunes M: mucous cells - The gland: human submandibular gland

- Pancreas - A: Islet of Langerhans B: pancreatic acini

- Black: Classic hepatic lobule - Red: Liver acinus - Green: portal lobule

- Classic hepatic lobule - Star: central vein - Blue arrows: C.T. septa

- Black arrow: Blood sinusoids - Yellow arrow: Hepatocyte - Arrowhead: The central vein

- The gall bladder - Simple columnar epithelium - Blue star: Musculosa

1- Pars distalis of pituitary gland 2- Black arrow: Basophils 3- Yellow arrow: Acidophils 4- Red arrow: Chromophobe 5- Green arrow: A fenestrated blood capillary1- Identify this part of the pituitary gland.

1- Pars nervosa 2- Black arrow: pituicytes Blue arrow: Herring body 3- Curved arrow: Fenestrated blood capllary Star: nerve fibers

1- Pars nervosa 2- Red arrow: Herring body 3- Yellow arrow: Pituicyte 4- Green arrow: Fenestrated blood capillary 5- Black arrow: Nerve fibers

1- Thyroid gland 2- Thyroid follicle 3- Colloid material

1- Thyroid gland 2- Blue arrow: Parafollicular cell 3- Red arrow: Follicular cells 4- Yellow star: Colloid

1- Black arrow: Oxyphil cells. Acidophilic, oval cells….. 2- Yellow arrow: Chief cells

Suprarenal gland 10: zona glomerulosa 11: zona fasciculata

-Suprarenal gland -Red arrow: zona glomerulosa -Green arrow: capsule -Blue arrow: zona fasciculata -Yellow arrow: zona reticularis -Orange arrow: fenestrated blood capillaries

1- The suprarenal 2- Blue star: Suprarenal fat Yellow star: Capsule 3- A: Zona glomerulosa B: Zona fasciculata C: Zona reticularis

1- Fasciculata 2- Yellow arrow: Spongiocytes 3- Polyhedral cells with central rounded vesicular nuclei & acidophilic vacuolated cytoplasm 4- Red arrow: Fenestrated blood capillaries

1- Testis 2- A: Sertoli cells B: Primary spermatocyte C: Spermatids D: Spermatozoa E: Myoid cells

1- Testis 2- A: Spermatogonia B: Primary spermatocyte C: Sertoli cells D: Spermatids E: Myoid cells F: Spermatozoa G: Interstitial cell of Leydig 3- Interstitial tissue1- Testis 2- A: Spermatogonia B: Primary spermatocyte C: Sertoli cells D: Spermatids E: Myoid cells F: Spermatozoa G: Interstitial cell of Leydig 3- Interstitial tissue

A- Testis B- 1: Myoid cells 2: Primary spermatocyte 3: Spermatids 4: Leydig cells 5: Sertoli cells

a. Black arrow: Primary spermatocyte b. Myoid cell c. Green arrow: Leydig (interstitial) cell & interstitial tissue d. Testis

A- Epididymis B- 1. Pseudostratified columnar ciliated epithelium with stereocilia. 2. Stereocilia 3. Sperms 4. CT & smooth muscle fibers

1- Vas deferens 2- Arrow a: lumen 3- Epithelium b: pseudostratified columnar epithelium 4- Layer c: musculosa & layer d: adventitia

A-Spermatic cord B- a: Vas deferens thick musculosa C- b: cremasteric muscle c: pampiniform plexus of veins

A-Prostate B- Black arrow: Prostatic acini C- Star: Fibromuscular stroma Red arrow: Corpora amylacea

A- Prostate B- 1: Prostatic urethra 2: Mucosal acini 3: Submucosal acini 4: Main acini C- Transitional epithelium

A. Penis B. 1: Corpora cavernosa 2: Corpus spongiosum 3: Tunica albuginea 4: Penile urethra

a) The ovary b) Arrow 1: Granulosa cell c) Secondary follicle d) Arrow 2: primordial follicle

a) The ovary b) Red circle: unilaminar primary follicle c) Blue circle: primordial follicle

a) Mature Graafian follicle b) Yellow star: Primary oocyte Green star: Antrum c) Yellow arrow: Zona pellucida Red arrow: Corona radiate d) Blue arrow: Granulosa cells e) red line: Theca folliculi

a) The ovary b) Multilaminar primary follicle c) Blue star: stroma Red arrow points to zona pellucida

1. Ovary 2. Blue arrow: Germinal epithelium 3. Red star: Stroma 4. A: Primordial follicle B: Unilaminar primary follicle

1. The ovary 2. Multilaminar primary follicle 3. O: Primary oocyte Red arrow: zona pellucida 4. Blue arrow: zona granulosa 5. Yellow double headed arrow: Theca folliculi

a) The ovary b) Dotted circle: Secondary follicle c) 1: Antrum 2: Granulosa cells 3: Primary oocyte 4: Zona pellucida

a) The ovary b) Blue double headed arrow: Mature Graafian follicle c) A: Antrum Z: Zona pellucida O: Primary oocyte CR: Corona radiate CO: Cumulus oophorus G: Granulosa cells T: Theca

a. Fallopian tube b. Star: lumen c) Layer 1: Mucosa Layer 2: Musculosa Layer 3: Serosa

a. Fallopian tube b. Red line: mucosa Blue line: musculosa c. Simple columnar partially ciliated

a) Uterus b) Red line: Endometrium c) Blue line: myometrium d) Yellow arrow: perimetrium

- Uterus 1. Endometrium 2. Myometrium 3. Endometrial glands 4. Uterine Blood Vessels

a-Uterus b-Red arrow: Uterine glands c- Star: Lamina propria d-Secretory phase

a) Vagina b) Red line: mucosa Blue line: musculosa c) Blue star: adventitia d) Non-keratinized stratified squamous epithelium

a. Vagina b. 1: Mucosa c. 2: Non-keratinized stratified squamous epithelium d. 3: musculosa e. Red line: lamina propria f. 4: Adventitia

a) Late placenta b) Green star: Maternal blood c) Red circle: Chorionic villi d) Yellow arrow: Syncytiotrophoblasts

1. Late placenta 2. Blue line: Chorionic villi 3. Blue arrow: Syncytiotrophoblasts & Red arrow: Hofbauer cells 4. Green arrow: Fetal capillaries 5. Black arrow: Maternal blood

a) Non-lactating mammary gland b) Yellow arrow: Lactiferous ducts c) Blue star: Thick CT septa Green arrow: Fat cells

a) Lactating mammary gland b) Yellow star: thin CT trabeculae c) Green arrow: alveoli, milk d) Lactating state Alveoli contain milk & Thin CT septa

a) Lactating mammary gland b) Blue circles: Alveoli. c) Yellow arrow: Milk secretion d) Black arrow: Trabeculae, Thin

1- Wavy arrow is Satellite cells. 2- Arrow points to unipolar nerve cell. 3- Arrowhead points to myelinated nerve fibers

1- Sympathetic ganglion. 2- Arrow points to multipolar Stellate nerve cell. 3- Silver

1- Wavy arrow points to nucleus of Schwan cell. 2- Arrow points to axon. 3- Arrow head points to endoneurium

1- (1) is the unipolar nerve cell. 2- (2) is the nucleus of nerve cell. 3- (3) is Satellite cells.

1- Arrows point to perineurium. 2- Red circle surrounds nerve bundle. 3- Arrowheads point to myelinated axon.

A- Lumbar level of spinal cord section B- 1 is the lateral column 2 is the anterior median fissure

A- Closed medulla (sensory) B- 1 is the spinal nucleus of trigeminal nerve 2 is the medial accessory olivary nucleus

A- Midbrain ( inferior colliculus) B- 1 is the inferior colliculi 2 is the aqueduct of Sylvius

A- Pons B- 1 is inferior cerebellar peduncle 2 is the basis pontis

A- Cervical level of spinal cord section. B- 1 is thick anterior horn 2 is central canal

A- Closed medulla (Motor) B- 1 is direct pyramidal tract 2 is cuneate nucleus

A- Midbrain (superior colliculus) B- 1- The red nucleus 2- The grey matter 3- The superior colliculus 4- The aqueduct of Silvius C- Pear shaped

A- Cerebellum B- 1. White matter (medulla), inner or pale. 2. Grey matter (cortex), outer or dark.

A- Section in the eye lid B- Red arrow: Meibomian glands (tarsal glands) C- Blue arrow: Skin surface (thin skin) D- Black arrow: Orbicularis oculi muscle

A) Cornea B) Red arrow: Bowman’s membrane Green arrow: Descemet’s membrane C) Blue arrow: Keratocytes Black star: Substantia propria

A) Green line: Substantia propria B)Yellow arrow: Non-keratinized stratified squamous epithelium Red arrow: Descemet’s membrane Blue arrow: Endothelium

a. Retina b. Red rectangle: Ganglion cell layer c. Arrowhead: Outer limiting membrane. Black arrow: retinal pigmented epithelium d. A: Outer nuclear layer B: Inner nuclear layer C: Choroid

A) Blue line: Retina B) Red circle: Macula lutea (fovea centralis) C) Yellow arrow: photoreceptor layer Green star: outer nuclear layer

A- Curved arrow: stria vascularis Arrow: basilar membrane Arrowhead: vestibular membrane B- 1: scala vestibuli 2: scala media 3: scala tympani

1: basilar membrane 2: outer phalangeal cell 3: inner phalangeal cell 4: outer hair cell 5: inner hair cell 6: outer pillar cell 7: inner pillar cell 8: tunnel of Corti

A) Organ of Corti B) Black arrow: Outer hair cells Green arrow: Outer phalangeal cells C) 1:scala media 2: Scala tympani

A) Organ of Corti B) Red star: Scala vestibule Curved arrow: stria vascularis C) Black arrow: Basilar membrane Green arrow: tectorial membrane D) Arrowhead: vestibular membrane