This document reviews histology slides and embryology models covering 10 types of epithelial tissues, 9 connective tissues, 3 muscle tissues, and general embryology. It includes slides and descriptions of tissues like simple squamous epithelium in the lungs, stratified squamous epithelium in the skin, and embryonic structures such as the bilaminar germ disc and trilaminar germ disc during gastrulation. Congenital defects like anencephaly and spina bifida are also reviewed, along with references for further information.

1. REVISION OF HISTOLOGY SLIDES & EMBRYOLOGY
MODELS
FOUNDATION MODULE
BY
DR. ABDUL WAHEED ANSARI
CHAIRPERSON & PROFESSOR OF ANATOMY,
RAKCOMS.RAKMHSU.
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2. 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
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3. Simple squamous epithelium
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4. Simple cuboidal epithelium
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5. Simple columnar epithelium
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6. Pseudostratified ciliated columnar
epithelium
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7. Stratified squamous non-keratinized
epithelium
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8. Transitional epithelium
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9. Stratified cuboidal epithelium
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10. Stratified columnar epithelium
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11. Connective tissues
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12. Dense regular connective
tissue
• Dense irregular connective
tissue
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13. Hyaline cartilage
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14. Elastic cartilage
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15. Fibrocartilage – bone
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16. Skeletal muscle histology
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17. Cardiac muscle histology
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18. Smooth muscle
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19. Embryology
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20. The Sertoli cells are responsible
for spermiogenesis
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21. 5/12/2016 21

22. 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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23. 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.
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24. 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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25. 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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27. Derivatives of neural crest cells
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28. 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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29. The maternal surface of placenta
• It is rough
• It shows cotyledons.
• Chorionic villi.
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30. Anencephaly
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31. 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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32. References
• https://quizlet.com/4403377/micro-
section-2-flash-cards/
• http://www.cram.com/flashcards/hi
stology-unit-7-2455845
• http://stevegallik.org/sites/histology
olm.stevegallik.org/htmlpages/HOL
M_Chapter07_Page05.html
• http://www.gwc.maricopa.edu/class
/bio201/Histology/HistoRev22a.htm
• http://showcase.netins.net/web/pla
centa/triage.php
• http://www.siumed.edu/~dking2/intr
o/IN022b.htm
• http://www.apn-
histopathology.unimelb.edu.au/gallery.
html
• http://www.easynotecards.com/noteca
rd_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.p
hp?album=22&pid=1161#top_display_
media
• https://quizlet.com/4292354/15-fetal-
circulation-flash-cards/
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