Peroneal nerve branches

"Super everter, deep dorsiflexer."

Superficial peroneal nerve (superficial fibular nerve) supplies the fibularis longus (peroneus longus) and fibularis brevis (peroneus brevis). These muscles evert the foot.

The deep fibular nerve (deep peroneal nerve) supplies the tibialis anterior, extensor digitorum longus, fibularis (peroneus) tertius, and extensor hallucis longus (propius). These muscles dorsiflex the foot.

The skin over the greater part of the dorsum of the foot is supplied by the superficial fibular nerve with the exception of the first web space, which is innervated by the deep peroneal nerve.

You can remember most of the superficial stuff (the skin) is supplied by the superficial nerve!

Embryological origin of brain mnemonics

Hello brainy people! Let’s memorize the embryological origins of the encephalon! The what? The brain? Yeah, that’s what we call it!
Disclaimer: I’ve made super lame associations =P

Three primary vesicles:

Forebrain is a pro.
Prosencephalon - future forebrain.

M for midbrain, mesencephalon.
Mesencephalon - future midbrain.

Rhomboid fossa is in the hindbrain.
Rhombencephalon - future hindbrain.

Five secondary vesicles:

You do telepathy with your cerebral hemispheres!
Telencephalon - Cerebral hemispheres.

Diet. Also, your food centres are in hyptothalamus.
Diencephalon - Thalamus, hypothalamus.

M for midbrain, mesencephalon.
Mesencephalon - Midbrain.

Meet me at the pond, bella.
Metencephelon - Pons, cerebellum.

Myelen think spinal cord. What connects spinal cord to the brain?
Myelencephalon - Medulla.

That’s all!
*zombie voice* “Brains! Human brains!”
-IkaN

Difference between primary biliary cirrhosis and primary sclerosing cholangitis mnemonic

Greetings people!
Primary biliary cirrhosis (PBC) and primary sclerosing cholangitis (PSC).. Because both have the word primary and are associated with the hepatobiliary system, it’s easy to mix em up.

Here’s how I keep them straight -
The middle word is the key:

sclerOsing has an O
O for onion
O looks like a bead

biliAry has an A
A for autoimmune
A for antibodies

Periductal onion skin fibrosis on histology and beaded appearance (both strictures and dilation) on cholangiography is seen in primary sclerosing cholangitis.

Cholangitis and Colitis sound similar and that’s how I make the Ulcerative colitis association with PSC!

Antimitochondrial antibodies are seen in primary biliary cirrhosis. It is autoimmune.

A also reminds me of the Attenuated bile duct epithelium due to destruction of interlobular bile ducts (those that course alongside the hepatic artery) by lymphocyte infiltration (Florid duct lesion).

Since autoimmune diseases are more commonly seen in females, PBC is also common in females.. So the other one, PSC, is seen in males!

Hope you all are doing awesome < 3
-IkaN

Anonymous asked:

Hey, can you give some tips on how to study pharmacology?

First, you need to get the concepts right. Speed read and get a big picture, then understand the little details.

I dived into minute things I didn’t understand right away.. Now that I look back, I think I should’ve been patient.

Anyway, lil doubts made great blog posts!
Example: Why is lidocaine preferred in patients with arrhythmias following myocardial infarction?

It’ll take time to get a hang of the names of various drugs.. If mnemonics work for you, you should try making em! Try to put mechanism in the mnemonic to make it simpler (That’s what I do!)

Here are some recent examples of how I make my pharmacology mnemonics -
Antifungal drugs with mechanisms
Antiparkinsonism drugs with mechanisms

Good luck and have fun learning! ^__^

Oxygen saturation mnemonic

I imagine Hemoglobin as a seat for oxygen to sit on. The RBC is like a bus and wohhoo travels the oxygen to it’s destination!

Anyway..
If something doesn’t allow oxygen to sit on it seat decreases O2 saturation.
Sit - seat - sat, get it?

Carbon monoxide sat on oxygen’s seat. O2 saturation decreases in CO poisoning.

Another example, methemoglobinemia.
O2 can not sit on Hemoglobin because heme group is in the Fe3+ or ferric state and that decreases O2 saturation as well!

In anemia, O2 saturation is normal! Why? Nobody is sitting on Oxygen’s seat!

Hope this silly thing helps you get through exams ^__^

-IkaN