Category Archives: Medical School

How do CD4 T cells activate CD8 T cells?

CD4 T cells activate CD8 T cells through an indirect process involving an antigen presenting cell (APC), normally a conventional dendritic cell (DC). An APC presents a peptide to a naive CD4 T cell via a Class II MHC molecule. The CD4 T cell becomes active and differentiates into a T helper 1 (Th1) cell… Read More »

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How are immune cells activated?

The most important immune cells for adaptive immunity are the lymphocytes. T cells An antigen presenting cell (APC), such as a dendritic cell, binds an a peptide from a pathogen on either a pattern recognition receptor (PRR), a complement receptor (CR), or a Fc antibody receptor (FcR). It can also uptake a pathogen through macropinocytosis.… Read More »

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How is a virus attenuated?

How is a virus attenuated? An attenuated virus is a form of virus that is genetically altered so that it is no longer pathogenic to humans. However, the immune system can produce defense against it. This defense is then sufficient to ward off the real, live virus if we ever become infected. First techniques of… Read More »

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Mature naive vs mature effector lymphocyte

The terminology "mature naive" and "mature effector" lymphocytes refers to the stage in maturation that the lymphocyte is currently undergoing. Lymphocyte maturation can be split into initial and final maturation. Initial maturation occurs in primary lymphatic organs (eg, bone and thymus) and final maturation occurs in secondary lymphatic organs (eg, lymph nodes). Mature naive lymphocytes… Read More »

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Red Pulp vs White Pulp in the Spleen

The spleen functions to filter our blood through a unique system of open circulation. It monitors the blood for foreign antigens and is also involved in red blood cell quality control, since phagocytes in the spleen consume red blood cells as they try to escape into open circulation through arterial capillaries. White pulp is lymphatic… Read More »

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Getting ahead before starting Med School

If you just got accepted to Med School and you're wondering what you can do in those last few months to get ahead before school starts, you're not alone. There's an overwhelming urge sometimes to panic if you're headed for Med School, but first step: don't! Firstly, ask yourself if you really want to get… Read More »

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Drugs and the Brain

Notes adapted from the Coursera course titled "Drugs and the Brain" taught by Dr. Lester from Caltech. 1-4: Drug Entry into the Nervous System Nicotine passes through 3 cell types and 6 cell membranes in under a few seconds. After being puffed in, it passes through alveolar epithelium cells, then it passes through two types… Read More »

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Interviewing at UCF College of Medicine

If you're reading this post and have been offered an interview to the UCF College of Medicine, congratulations! If you are reading this and hope to one day interview at UCF, you're well ahead of schedule and I commend you for that. This post will include some useful notes about the UCF COM interview experience,… Read More »

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Protected: UCF Medical School - Features, Admissions Data, and More

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Protected: Preparing for a Medical School Interview

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