sugaratoms:

image credit 

This baby, pictured in yellow, is a nucleus. They contain genetic information for every single eukaryotic cell (apart from mitochondrial DNA, and the DNA of chloroplasts).  They are the most conspicuous organelle under the microscope, appearing as a darker, denser area. The nuclear envelope separates the nuclear contents from the cytoplasm. The double membrane (nuclear envelope) is periforated by pores 100nm in diameter. At the lip of each pore, the inner and outer membranes are continous, leaving a space between them of 20-40nm. The inside of the envelope is lined with the nuclear lamina, a netlike array of protein filaments which serve to maintain shape. There is also much evidence for a nuclear matrix within. DNA is present as chromatin or chromosomes in the nucleus, with each species having a characteristic number of chromosomes and genes. A nucleolus is present within the nucleus and is identified as densely stained granules and fibres. The nucleolus synthesises rRBA and studies suggest it also plays a part in is regulation of cellular processes (such as division).

kelvinguo:

Neural Stem Cells

Awwh, thank you so much! I love that it helps in some way with your studies and I hope it makes it more interesting to learn too :)

I’m sure when the time comes, you’ll know whether you want to proceed with medicine or not. Just go with what you feel most passionate about. Either way you’re studying for a very worthwhile and fulfilling career. Best of luck with it :)

Amy.

fyeahanatomy:

Human body anatomy. Artwork showing the anatomy of a standing human body. Bones of the skeleton, muscles of the limbs, and major organs are seen. At top is the brain (white) in the skull & spinal cord passing into the neck. The thorax contains the heart with arteries (red) and veins (blue); around the heart are the lungs with bronchiole air tubes. Beneath the lungs are lobes of the liver in the abdomen. The pancreas (yellow), gall bladder (green) and two kidneys (pink) with ureters are seen. The small intestine is coiled, occupying the lower abdomen. Muscle blocks (red) in the limbs enable movement, & these are attached to bones of the limbs, pelvis and shoulder, by white tendons.

Credit: JOHN BAVOSI/SCIENCE PHOTO LIBRARY

fuckyeahforensics:

Cross section of an umbilical cord

:D

Hi! Thank you so much :)

I answered this about a month ago here. These are some of my favourite science blogs and are a big part of what I would reblog here! :)

Amy.

frankgaillard:

Case Discussion:

This case illustrates typical appearances of a cerebellar hemisphere haemorrhage. 

Related articles

• cerebellar haemorrhage
• intracranial haemorrhage

fuckyeahmolecularbiology:

If asked, would you rank polio among the world’s most severe infectious diseases?

No, I wouldn’t either - but it’s worth remembering that it took a lot of hard work to get it off of that list. Poliovirus, a human enterovirus of the family Picornaviridae, has persisted throughout history with fascinating success. It can be seen everywhere from ancient Egyptian paintings and carvings of otherwise healthy people with withered limbs, to, more recently, the 20th century polio epidemics that became a seasonal plague, paralysing children and adults alike and causing the ultimate race for a vaccine. While 90-95% of poliovirus infections are asymptomatic, the symptoms of polio - when they present - are both devastating and deadly.

Several poliovirus vaccines have been developed to date; in particular, one live, attenuated vaccine and one IPV (inactivated poliovirus vaccine). In a recent Nature News article, “A war not yet won”, the financial implications of poliovirus - which is still endemic in developing countries, despite a worldwide push for eradication - were examined alongside various strategies for moving forward with changes to the proposed eradication scheme. One such change was the use of the injectable IPV vaccine in conjunction with the oral vaccine - the live, weakened attenuated virus - that’s currently being used to treat poliomyelitis in endemic populations.

Although the fight to eradicate poliovirus is far from over - and it’s definitely too early to start congratulating - complementing the inexpensive, highly effective oral vaccine with its injected dead-virus counterpart is a promising start. With sufficient funding and a better global understanding about the benefits of vaccination, we’ll see the end of poliomyelitis in our lifetimes. 

Top Image: Coloured transmission electron micrograph (TEM) of clusters of polio viruses, the cause of poliomyelitis (infantile paralysis). There are three serotypes of the polio virus; pictured here is type 1, which causes most epidemics.

Bottom Image: A computer’s 3D rendering of poliovirus virions.

othergeeks:

HeLa cells treated with a compound so that distinct groups of proteins become visible. That is; tubulin, which is a generic family of proteins turns red, and DNA blue.

There’s more here, by the way.

Wow, sounds like an awesomely unique gift idea! I approve! :)

Would this be what you’re looking for? If you’re looking for a different view of it, let me know and I’ll see what I can find :)