Visual Pathway & its defects - Optic nerve - Optic Chiasm - Optic tract - Lateral Geniculate Body
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10 ай бұрынVisual Pathway & its defects - Optic nerve - Optic Chiasm - Optic tract - Lateral Geniculate Body in the metathalamus of the thalamus - optic radiation (including Meyer’s loop in the temporal lobe) - primary visual cortex in the occipital lobe of the cerebral cortex (cerebrum)…Visual field defects can cause complete blindness, bitemporal hemianopia (pituitary adenoma or pituitary tumor), contralateral homonymous hemianopia (with or without macular sparing)، quadrantanopsia,…etc. Neuroanatomy playlist.
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@MedicosisPerfectionalis 10 ай бұрын
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@MedicosisPerfectionalis 10 ай бұрын
🧠 Neuroanatomy Playlist: kzfaq.info/sun/PLYcLrRDaR8_cBHy0sWaCaLmOlJb9gzmA2&si=lnnSJhJJTUcfKl5b 🥼 Clinical Neurology Playlist: kzfaq.info/sun/PLYcLrRDaR8_cQG-7JbGaeXsXGgBpK-Yzl&si=Qoi97evsN9uz-9Te 💀 Anatomy Playlist: kzfaq.info/sun/PLYcLrRDaR8_cxbxAwLSQSx9v28Ezv3gQB&si=jqigBoyauPcen27C
@user-yu9jk6vj6j 8 ай бұрын
23:35, 10 and 11 are altitudinal visual field defects Causes can be G: glaucoma O:optic disc drusen A: ant ischemic optic neuropathy.
@user-si8od3hy2e 9 ай бұрын
Your lectures are always the best out there. Wish you only success!
@MedicosisPerfectionalis 9 ай бұрын
Many thanks!
@dahis6763 3 ай бұрын
U make everything make sense, loovvvve
@favie_1018 3 ай бұрын
Broadmann area 17 is in the visual cortex. 18 and 19 are visual association areas.
@MedicosisPerfectionalis 3 ай бұрын
Excellent!
@amrmukhtar8951 7 ай бұрын
Magnificent ❤
@user-iv2id2ex3i 4 ай бұрын
You are an angel in the field of medicine. ❤
@MedicosisPerfectionalis 4 ай бұрын
I appreciate you so much!
@tiggerific007 Ай бұрын
Thank you for the video. please correct 16:51-53 it should be PARIETAL not temporal
@Emanaia 3 ай бұрын
You are unbelievable Thank you so much sir My professor just read slides for us Thank you ❤
@MedicosisPerfectionalis 3 ай бұрын
It's my pleasure!
@tafusmurielle298 21 күн бұрын
Thank you for this.
@MedicosisPerfectionalis 21 күн бұрын
My pleasure!
@Doodi100 3 ай бұрын
Please tell us what is the answer to the second question? I have a neurology exam next week 😢😢😢. Excellent explanation thank you very much.
@simone5556 9 ай бұрын
Love the 1984 reference!
@heet1501 6 ай бұрын
I don't know that much but i have very random question can we directly connect eye to optic chiasm
@waelfadlallah8939 10 ай бұрын
Amazing 😊
@MedicosisPerfectionalis 10 ай бұрын
Thank you so much!
@AhmedTaher-ph7ui 8 ай бұрын
بنها فخورة
@dahis6763 3 ай бұрын
Thannnnnnnkk youuuuuuuu
@mahmoudyousif4745 2 ай бұрын
thank you so much for the content, YOU literally made everything understandable and as u said before we gonna pass the exam because of u xd thanks again and for the quiz ... could u check my answers.. question.(10) first part bilateral inferior quadrantanopia w\sparing macula second part > in the parietal optic radiation both sides question(11) first part bilateral superior quadrantanopia w\sparing macula second part > in the temporal optic radiation both sides
@User-on35ghk 3 ай бұрын
Can anyone explain me what did he mean by ( the macula has bilateral cortical representation even if one cortex or one half or one hemisphere is “screwed” the macula is “spared” because the macula “get also supply” from the other cortex) I don’t speak English well but I understood everything at the beginning except this, also this bilateral cortical representation what is it exactly ? Thanks 🙏
@MedicosisPerfectionalis 3 ай бұрын
It means that sensory afferent fibers from each macula will reach both cerebral cortices.
@zacharyabere9729 9 ай бұрын
❤ thank you so much! Surgical sutures 🪡 please.. if you can do the lecture on the same. Will appreciate
@LilKhay-yk5mb 20 күн бұрын
Sir can you do a video for each of the other pathways like auditory etc
@MedicosisPerfectionalis 20 күн бұрын
The auditory pathway is discussed in my video: "Vestibulocochlear nerve - Cranial Nerve VIII. More pathways are talked about in other videos in my "Neuroanatomy" playlist!
@ShawrinAriya 4 ай бұрын
Best sir
@MedicosisPerfectionalis 4 ай бұрын
Thank you so much!
@user-jx7zr1te4e 6 ай бұрын
Hi Medicosis !! How to get access to your premium Videos on neuroanatomy and other playlist ??
@MedicosisPerfectionalis 6 ай бұрын
Join my KZfaq channel membership program to watch premium videos: kzfaq.info/love/l-J-ovSJhA3or73Q2uVpowjoin
@user-jx7zr1te4e 6 ай бұрын
Hi medicosis, this link is not working!! @@MedicosisPerfectionalis
@Lila.93 9 ай бұрын
Is the 11th defect because the temporal optic radiation of both right and left cerebral hemisphere has a lesion?
@No-gx2vu 7 ай бұрын
But why macular sparing?🤔
@nandipahtnkhoma1018 5 ай бұрын
What happens in dyslexia
@ImanIssah-k4k 4 күн бұрын
10 and 11 Is it Inferior homonymous heminopia with macular sparing And Superior homonymous heminopia with macular sparing
@icebear8659 6 ай бұрын
16:51 small mistake here, upper lobe is parietal lobe not temporal lobe.
@danielhernandez-fo3mj 4 ай бұрын
He said the upper is parietal and lower is temporal.... not sure how you heard him differently
@sportsurge4895 9 ай бұрын
🎉 complete
@MedicosisPerfectionalis 9 ай бұрын
Thank you!
@nidahanif6554 8 ай бұрын
Broadmann area 17
@ahmadalhadidi9411 5 ай бұрын
22:37 If the macula has a bilateral cortical representation why wouldn’t the contralateral cortex compensate for the heminopia in a unilateral optic tract, LGB or radiation lesion?
@MedicosisPerfectionalis 5 ай бұрын
Because when there’s a lesion in the optic tract, LGB, or the entire optic radiation, the macula doesn’t have any path to communicate with the cortex at all. Each macula connects to both cerebral cortices through nerve fibers, but these nerve fibers have to travel through optic nerve, optic tract, LGB, and optic radiation. If you injure any of these areas, then the only way the macula has to reach both occipital cortices has been severed! Does that make sense?
@ahmadalhadidi9411 5 ай бұрын
@@MedicosisPerfectionalis my question is if the lesion occurred after the optic chiasma, won’t the nasal fibers have already crossed to the other side to reach the contralateral cortex carrying macular visual impulses as well?
@i_amkingsley4267 2 ай бұрын
Broadman area 17
@AhmedTaher-ph7ui 8 ай бұрын
GOAT
@MedicosisPerfectionalis 8 ай бұрын
Thank you!
@CHEH_tf 10 ай бұрын
another goated video
@MedicosisPerfectionalis 10 ай бұрын
Thank you!
@life42theuniverse 6 ай бұрын
Nerve is tract; Truth is lies.
@arjunbalhara07 16 күн бұрын
No bro in cns fibers are called as tract , in pns they becomes nerves 😂
@areh0670 9 ай бұрын
What is your specialty??🤩
@MustafaAhmed-ji1dz 3 күн бұрын
10 ,11 altitude defect Retinal artery occlusion Ischemic optic neuropathy
@adlyaboamra8753 10 ай бұрын
I am still studying this lecture
@MedicosisPerfectionalis 10 ай бұрын
I wish you success!
@adlyaboamra8753 10 ай бұрын
thank you
@adlyaboamra8753 9 ай бұрын
@@MedicosisPerfectionalis اتوصى بنا شويه على رأى المصريين
@lordazimotheus5487 15 күн бұрын
LGBThalamus... noted
@B0NA_ 3 ай бұрын
Please who understood the joke at the beginning 😅
@lovelysouls3382 10 ай бұрын
17??
@CHEH_tf 10 ай бұрын
it actually is area 17, gg
@ragaeeramzy7432 10 ай бұрын
First comment ❤
@MedicosisPerfectionalis 10 ай бұрын
Thank you!
@dahis6763 3 ай бұрын
17 1:52
@ImanIssah-k4k 4 күн бұрын
10 and 11 Is it Inferior homonymous heminopia with macular sparing And Superior homonymous heminopia with macular sparing
@JohnAhenkorah-dj4bj 2 ай бұрын
Broadmann area 28
@ImanIssah-k4k 4 күн бұрын
10 and 11 Is it Inferior homonymous heminopia with macular sparing And Superior homonymous heminopia with macular sparing
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