1. Important Points To be Considered

3. Important Points To be Considered
Student  who  are  late more than  10  mins ,  NO LESSON  will  be  REPEATED.
NO  CAMERA  are  allowed  in  the  lab  at  all.

4. exam Histology Anatomy FIRST QUIZ 5 Midterm exam 15 SECOND QUIZ
6/1/1437
19/10/2015
Monday
FIRST QUIZ 5
Histology
8/1/1437
21/10/2015
Wednesday
4/2/1437
16/11/2015
Midterm exam 15
6/2/1437
18/11/2015
18/2/1437
30/11/2015
SECOND QUIZ
Anatomy
20/2/1437
2/12/2015
3/3/1437
14/12/2015
Final exam 10
5/3/1437
16/12/2015

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6. MICROSCOPY  

7. APPLICATIONS OF COMPOUND
MICROSCOPE
It is used to study cell parts.
Example:
The organization of tissues
The structure of developing embryos with many other important applications

8. Parts of the Microscope:
The parts of the microscope can be grouped in three systems:
1. The magnification system.
2. The mounting and movement system.
3. The illumination system.

9. The mounting and movement system
The body tube:
carries the ocular lenses
The nose piece:
Carries the objective lenses and
move them accordingly above the
stage
The arm:
Supports and connects the
upper part of the microscope
The stage:
Horizontal platform upon which
the slide of interest rests
The coarse focusing knob:
for stage movement
The fine focusing knob:
for image sharpness
The base:
Supports the microscope
The mounting and movement system

10. How to calculate the magnification power?
THE MAGNIFICATION SYSTEM
The ocular lenses:
5X, 10X, and 15X
The objective lenses:
Scanning lens: 3.5X or 4X or 5X
Low power lens: 10X
High power lens: 40X
Oil immersion lens: 100X
How to calculate the magnification power?
Magnification power = ocular lens x objective lens.
(e.g.) 10X x 40X = 400X hint: Don’t forget the unit

11. THE ILLUMINATION SYSTEM
The iris diaphragm:
controls the amount of light
reaching the slide
The illuminator:
light source
The condenser:
collects and concentrate the light
THE ILLUMINATION SYSTEM

12. THE CELL

13. THE CELL It is the functional and structural unit in organisms.
There are different cell structures depending upon their location and function in the body.
3 major cell components:
Genetic material.
Cytoplasm.
Cell membrane.

14. CELL TYPES Two major cell types depending on the arrangement
of the genetic material inside the cell:
Prokaryotic cells (pro = before; Karyone = nucleus):
Nucleus is absent.
The region where the DNA is located in the cytoplasm is called nucleoid
Eukaryotic cells (True nucleated cells):
Nucleus is present.
DNA is associated with proteins which forms chromatin

15. PROKARYOTES: BACTERIA
Bacillus:
Rod shape and occur in strands.
Coccus:
Rounded and occur in colonies or strands.

16. EUKARYOTES Plant cells: Animal cells : Have cell wall.
Example: onion cells.
Rectangular with eccentric nucleus.
Onion cells
Animal cells :
Do NOT have a cell wall.
Animal cells

18. Simple Squamous Epithelium ( Lining of mouth )
Cell membrane
Cytoplasm
Nucleus

19. Thank you
for your attention