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REVISION OF HISTOLOGY SLIDES & EMBRYOLOGY
MODELS
FOUNDATION MODULE
BY
DR. ABDUL WAHEED ANSARI
CHAIRPERSON & PROFESSOR OF ANATOMY,
RAKCOMS.RAKMHSU.
5/12/2016 1
The following types of tissues are
covered in this activity. Simple squamous epithelial tissue (lungs)
2. Simple cuboidal epithelial tissue (kidneys)
3. Simple columnar epithelial tissue (small intestine/gall bladder)
4. Pseudostratified (ciliated) columnar epithelial tissue (trachea lining)
5. Stratified squamous keratinized epithelium( Skin)
6. Stratified cuboidal epithelial tissue (salivary glands, sweat glands)
7. Stratified columnar epithelial tissue (male reproductive tract)
8. Transitional epithelial tissue (bladder)
9. Connective tissues(adipose/fibrocartilage/elastic/hyaline and bone)
10. Muscular tissues(skeletal/smooth and cardiac muscles)
11. Revision of general embryology 5/12/2016 2
Simple squamous epithelium
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Simple cuboidal epithelium
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Simple columnar epithelium
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Pseudostratified ciliated columnar
epithelium
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Stratified squamous non-keratinized
epithelium
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Transitional epithelium
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Stratified cuboidal epithelium
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Stratified columnar epithelium
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Connective tissues
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Dense regular connective
tissue
• Dense irregular connective tissue
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Hyaline cartilage
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Elastic cartilage
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Fibrocartilage – bone
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Skeletal muscle histology
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Cardiac muscle histology
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Smooth muscle
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Embryology
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The Sertoli cells are responsible
for spermiogenesis
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Fertilization occurs in Fallopian tubes
• The Sperm's Long Journey
• A man may ejaculate 40 million to150 million sperm, which start swimming upstream toward the fallopian tubes on their mission to fertilize an egg. Fast-swimming sperm can reach the egg in a half an hour, while others may take days. The sperm can live up to 48-72 hours. Only a few hundred will even come close to the egg, because of the many natural barriers that exist in a woman's body.
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The tubal pregnancy is an ectopic
pregnancy
• The fertilized egg starts
growing fast, dividing into
many cells. It leaves the
fallopian tube and enters
the uterus three to four
days after fertilization. In
rare cases, the fertilized
egg does not leave the
fallopian tube. This is
called a tubal pregnancy
or ectopic pregnancy and
is a danger to the mother.5/12/2016 23
The bilaminar germ disc
• 1. Syncytiotrophoblast
• 2. Trophoblastic lacunae
• 3. Surface epithelium
• 4. Fibrin coagulum
• 5. Epiblast
• 6. Amniotic cavity
• 7. Hypoblast
• 8. Cytotrophoblast
• 9. Exocoelomic cavity
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The gastrulation-Trilaminar germ disc
1. Primitive groove
2. Primitive pit
3. Primitive node
4. Oropharyngeal membrane
5. Cardiogenic plate
6. Sectional edge of
amniotic membrane
7. Mesoderm
8. Endoderm
9. Future cloacal membrane
1+2+3 = primitive streak5/12/2016 25
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Derivatives of neural crest cells
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Placenta at term
• Fetal surface is smooth
• It has umbilical cord
arising from it.
• The umbilical cord has
one vein and two
arteries suspended in
mesenchyme.
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The maternal surface of placenta
• It is rough
• It shows cotyledons.
• Chorionic villi.
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Anencephaly
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The spina bifida is a congenital developmental defect when the
posterior neuropore does not close, the spinal cord is exposed
along with the meninges
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References
• https://quizlet.com/4403377/micro-section-2-flash-cards/
• http://www.cram.com/flashcards/histology-unit-7-2455845
• http://stevegallik.org/sites/histologyolm.stevegallik.org/htmlpages/HOLM_Chapter07_Page05.html
• http://www.gwc.maricopa.edu/class/bio201/Histology/HistoRev22a.htm
• http://showcase.netins.net/web/placenta/triage.php
• http://www.siumed.edu/~dking2/intro/IN022b.htm
• http://www.apn-histopathology.unimelb.edu.au/gallery.html
• http://www.easynotecards.com/notecard_set/16072
• http://www.hccfl.edu/yc/science/bsc-2085l-review/04-overview-of-the-skeleton/14-15_hyaline_cartilage_ct.aspx#
• http://www.histology-world.com/photoalbum/displayimage.php?album=22&pid=1161#top_display_media
• https://quizlet.com/4292354/15-fetal-circulation-flash-cards/
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