Let’s Look at Slides #4 (last part)

Let’s Look at Slides #4 (last part)

20170720_144550 - Copy - Copy

Last part of the microscope series! Let’s go!

ABBREVIATION MEANING
wm Whole mount (entire specimen or organism)
st Stained
ls Longitudinal section
cs Cross-section
sec Section
sm Smear
sq Squashed preparation

59. Rabbit Hyaline Cartilage:

There are three varieties of cartilage, hyaline, elastic, and fibrocartilage. The most abundant type is hyaline, found as supportive tissues in the nose, ears, trachea, larynx, and smaller respiratory tubes. As articular cartilage, hyaline is found covering the articular surfaces of bones in synovial joints.

20170725_162157

400x

60. Rabbit Lymph Node (sec.):

Lymph nodes are small, bean-shaped glands throughout the body. They are part of the lymph system, which carries fluid (lymph fluid), nutrients, and waste material between the body tissues and the bloodstream. The lymph system is an important part of the immune system, the body’s defense system against disease.

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40x

 

61. Rabbit Spinal Cord (c.s.):

The spinal cord is a long, thin, tubular bundle of nervous tissue and support cells that extends from the medulla oblongata in the brainstem to the lumbar region of the vertebral column. The brain and spinal cord together make up the central nervous system (CNS). In the human, the spinal cord begins at the occipital bone where it passes through the foramen magnum and meets and enters the spinal canal at the beginning of the cervical vertebrae. The spinal cord extends down to between the first and second lumbar vertebrae where it ends. The enclosing bony vertebral column protects the relatively shorter spinal cord. It is around 45 cm (18 in) in men and around 43 cm (17 in) long in women. Also, the spinal cord has a varying width, ranging from 13 mm (12 in) thick in the cervical and lumbar regions to 6.4 mm (14 in) thick in the thoracic area.

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40x

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100x

 

62. Rhizopus (w.m.):

Rhizopus is a genus of common saprophytic fungi on plants and specialized parasites on animals. They are found on a wide variety of organic substrates, including “mature fruits and vegetables”, jellies, syrups, leather, bread, peanuts, and tobacco. Some Rhizopus stolonifer species are opportunistic agents of human zygomycosis (fungal infection) and can be fatal. Rhizopus infections may also be a complication of diabetic ketoacidosis. This widespread genus includes at least eight species.

 

 

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40x

 

 

63. Rice Stem (c.s.):

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100x

64. Root-Meristem (l.s.):

A meristem is a tissue in most plants containing undifferentiated cells (meristematic cells), found in zones of the plant where growth can take place.

20170725_162528

40x

 

65. Spirillum smear:

Spirillum is a genus of Gram-negative bacteria within family SpirillaceaeThere are two species in Spirillum with standing in nomenclature, Spirillum winogradskyi and Spirillum volutans. The taxonomic position of three other species provisionally bearing the Spirillum genus name (Spirillum minusSpirillum pleomorphum, and Spirillum pulli) is uncertain and these have no standing in nomenclature.

The bacteria is back.

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400x

 

66. Spirogyra Conjugation (w.m.):

Spirogyra (common names include water silk, mermaid’s tresses, and blanket weed) is a genus of filamentous charophyte green algae of the order Zygnematales, named for the helical or spiral arrangement of the chloroplasts that is diagnostic of the genus. It is commonly found in freshwater areas, and there are more than 400 species of Spirogyra in the world. Spirogyrameasures approximately 10 to 100 μm in width and may grow to several centimeters in length. It is also a microorganism.

20170725_162648

40x

That’s all. We did 66 slides and didn’t do 34. To see what we missed click on the link: 

https://slide-atlas.org/sessions/4f9b29ab4834a30564000000

The link has all of the slides. And you could zoom in and out between 80x-0.45x. You should go over there if you’re interested in biology and slide specimens. But the problem is that they don’t explain what the specimens are. If you want to know, go back to the previous posts.

Did you learn anything on this series of posts? Let me know in the comment section↓

I hope you enjoyed the series. It took me 2 hours to do one part!

Sources:

 

www.mhhe.com/biosci/ap/histology_mh/cartilag.html

google

https://en.wikipedia.org/wiki/Spinal_cord

https://en.wikipedia.org/wiki/Rhizopus

https://en.wikipedia.org/wiki/Spirogyra

About Dan the Young Scientist

Science is my Life!
This entry was posted in Experiments and Studies and tagged , , , , . Bookmark the permalink.

One Response to Let’s Look at Slides #4 (last part)

  1. Hope you guys enjoy this series of posts! Click on the link on the post if you’re a microscope slide fan.

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