Slip of tongue at 2.47 Pupil constriction: Parasympathetic Pupil dilation: Sympathetic Key to remember: When scared we dilate our pupil to let maximum light in(Fight or flight).
Just wow… you are best anatomy teacher ever i seen.. just get to know you today while searching ommentum. And i start to watch a video everyday. Certainly someday I wish to meet my teacher personally after gettin* success in my Career.
That's wonderful acknowledgement explaining about medical human body systems from inside related bones I like gave comment easier explanation not related to my personal life just his professor professional style like interesting about human body systems bones
Hi Sam, at 6:25 you show this model of spinal cord. Do these nerves (left and right on the model) run between the facetjoints? Are those the ones that are burned dead when they are 'trapped' f.i. between cervical facetjoints? Best regards, your fan
If a person suffers from trigeminal neuralgia, does the reflex occur during a flare-up? It would be nice to have an observable indication of a pain flare.
Happy New Year Sam, Brilliant video for your the first video of the year. My Burmese Cat had a polyp groing through his Tympanic Membrane, the first surgery was removing the polyp from the ear canal, with hope that the polyp in the middle ear would come with it. Sadly no, he had to have really invasive surgery entering the middle ear via his jaw. The CAT scan showed the bone had thickened and there was some pus in the Tympanic Bulla along with the rest of the polyp. Cat's ear canals are totally different to humans their ear canal's are (L) shaped this is showing the left side of the cat's ear, the right is reversed (_l) looking like this. One of the possible complications of Oscar's surgery was developing Horner's Syndrome. After a very lengthy surgical procedure when I went to collect him, his vet was able to tell me Oscar had a slight droop to his R eye. As she had successfully removed the polyp and pus from the Tympanic Bulla I was delighted as seeing the CAT scan there was just a thickness of 2/3mm of bone before his brain. When I worked as an Anaesthetic Nurse in ENT occasionally people who couldn't close their eyelid would have a sterile gold prothesis stitched into their eye lid as the weight helped to close the eye.
That's tricky surgery. There's an image of a cat with Horner's syndrome on Wikimedia: commons.wikimedia.org/wiki/File:Example_of_Horner%27s_syndrome_in_a_cat.jpg
If u want to check if brainstem is intact….. do it on face. And if itshorners syndrome then do it on neck region.U can also see dolls eye phenomenon to check intact brainstem.
Is it possible to physically “twang” the sciatic nerve on someone whilst i’m massaging their glute? They’ve had sciatica for a year now from a herniated disc you see and I was just curious what exactly i’m mushing around with my hands as an inexperienced, unprofessional oaf🤷 Thanks!
Is what Dr. Webster called "ciliospinal centre" / "Budge`s centre" also called the intermediolateral nucleus? He mentioned it was from T1-T2, but the intermediolateral nucleus is from T1-L1 I reckon. I got a bit confused thinking they are two different nuclei? I hope they are the same, but with different names than what I am used to, but as a medical student I feel the need to ask someone with greater knowledge.
The intermediolateral nucleus (or cell column) is the name for the lateral horn of grey matter running all the way from T1 to L1 where the cell bodies of preganglionic sympathetic neurones are found. The ciliospinal centre is the same structure but only in levels T1-T2 and is the part of the interomediolateral cell column responsible for innervating the eye. Excellent question.
@@SamWebsterThank you so much for the explanation, Dr. Webster. That makes sense now. You are a godsend for us international students studying medicine in English as our second language. So easy to understand and so fun to follow. Perfect combination 👍
