T.S of liver of rat

The liver is the largest gland in the body. It is located in the upper three regions in the abdomen . Hepatocytes are arranged in hexagon-shaped lobules (classical lobules) about 2 mm in length and 700 μm in diameter. 

T.S of Rat Ovary

The paired ovaries of the rat are grape-like structures that vary in gross appearance and size, depending on the stage of the oestrous cycle. The subgross anatomy of the rodent ovary. Covering its surface is a single layer of modified peritoneal mesothelium, the ovarian surface epithelium (OSE), which is continuous with the broad ligament (mesovarium)…

Megalopola

Megalopa larva has a large un-segmented cephalothorax with all 13 pairs of appendages like those of a crab, abdomen is straight and in line with cephalothorax, it is like the abdomen of prawn with 6 pairs of well formed pleopods, In crabs the nauplius is passed in the egg, it hatches as a zoaea which…

Cypris

Cypris are ostracods (a type of crustacean) and related to mussels and shrimp. They are small, about 1/2 – 2mm long, with a hard outer shell. In freshwater ponds they are usually found scuttling around among the debris at the shallow edges. They swim smoothly with appendages extended from between the two halves of their carapace…

Zebrafish embryonic stage

Transition stage between Oblong to sphere stage of blastula period in zebrafish embryonic developement

Moldy Lunch

Cleaning out the fridge at work, I noticed an old lunch of mine had become quite fantastically moldy. Seeing this little forest of cellular trees reminded me of a story I recently came across about microbes, artwork, and preservation… To recap the story: Microbes are around us all the time in spore form, and when…

Fun with Foldscopes!

Today in our ecology class lab at Princeton we used Foldscopes to investigate the world around us. I stuck the slide sticker to my skin in order to collect material from my skin. It was initially challenging to find an image, but with some patience and tinkering I was able to get a great picture…

Posterior Spircale of Chrysomia species

DBT Foldscope scheme “Foldscope for diagnosis of rumen acidosis and parasitic infections in cattle” Here’s a beautiful and detailed picture of the processed Posterior Spiracle of a Chrysomya larvae which was collected from an infected wound of a cow. The steps involved are: The larvae was boiled in 10% NaOH for about 5 mins and was thoroughly…

Fungus

Fungi observed through foldscope. We can easily see observe sporangium and spore (conidia) structures through foldscope.  

Eyelash

Eyelashes protect the eye from debris. It perform some of the same functions as whiskers do on a cat or a mouse, that is they are sensitive to being touched, thus providing a warning that an object is near the eye (which then closes reflexively).

Observed Euchlanis Rotifer under Foldscope

Euchlanis is a genus of the microscopic invertebrates known as rotifers. Sometimes alternatively referred to as wheel-animalcules, rotifers feature a characteristic circular arrangement of cilia at their front ends that are reminiscent of a turning wheel when they are in motion. In addition to a ciliated corona, or head, Euchlanis species have transparent bodies and two strong toes…

Proboscis of a Moth.

Moths have very long proboscis, or tongues, which they use to suck nectar or other fluids. These proboscis are very tightly coiled when not in use, like a hosepipe. When in use, the proboscis are uncoiled to their full length and in some species, that length is remarkably long.

Fern prothalus (archegonia)

Prothalus is usually gametophytic stage of fern archigonia . Prothelium develope from germinating spores . It is showed heart shaped in conspicious structure with no of rhizoids growing under neath archegonia . Some of the prothalus are green in colour exhibit photosynthesis rathe colourless one are saprophytic in nature

Feather of Peacock

We observed the feather of peacock under foldscope and learned about the cells of rachis. The feather consist of  Vane, Rachis, Barbs and Hollow shafts. The rachis contains pith, which is composed of air-filled keratinised epithelial cells surrounded by a solid keratinised outer cortex. … Barbs: The series of branches fused to the rachis, constituting the major surface area of…