#cranial

[tadpoles-yay]

This year we decided to empty the stockings early and

I’m really happy

Sorry about the sword I forgot to take it off before taking the picture

I really like the caupedactylus

[bethiniancorpuscle]

Cranial nerves mnemonic

On, on, on, they travelled and found Voldemort guarding very ancient horcruxes.

Olfactory, optic, oculomotor, trochlear, trigeminal, abducens, facial, vestibulocochlear, glossopharyngeal, vagus, accessory, hypoglossal.

On - Olfactory nerve (CN I)

On - Optic nerve (CN II)

On - Oculomotor nerve (CN III)

They - Trochlear nerve (CN IV)

Travelled - Trigeminal nerve (CN V)

And - Abducens nerve (CN VI)

Found - Facial nerve (CN VII)

Voldermort - Vestibulocochlear nerve (CN VIII)

Guarding - Glossopharyngeal nerve (CN IX)

Very - Vagus nerve (CN X)

Ancient - Accessory nerve (CN XI)

Horcruxes - Hypoglossal nerve (CN XII)

[ilikevintagebooks]

Common Sense Medical Adviser In Plain English or Simplified by R.V. Pierce, M.D. 1895

[con-alas-de-angeles]

St. Jerome Writing (detail) by Caravaggio

[skuzz]

Throwback: Beautiful traditional drawing from the @barrowneuro archive, by Steven J. Harrison, PhD, circa July 1989. It depicts a suprasellar tumor invading the third ventricle. Steve used airbrush, gouache, and color pencil to bring this piece to life. It was originally created for the article titled, “Symptomatic Granular Cell Tumor: Case Report and Review of the Literature” by Shih Sing Liu, MD, and published in the Summer 1989 issue of the BNI Quarterly. #neurological #tumor #resection #medicalillustration #scienceart #medicalart #cranial #vascular #traditionalartwork #braintumor #bypass #medschool #neuroscience #resident #neuro #medicine #residency #sciart #scienceillustration #physicianassistant #paschool #gradschool #medicalschool #neurosurgery #spinal #spinesurgery #brainsurgery #medical #surgicalprocedures (at Barrow Neurological Institute) https://www.instagram.com/p/CGXfLXnnFcp/?igshid=dnydv1frz60h

[th3leviathan666]

Artwork by Chris Moyen

[kipbo]

[dreaminginthedeepsouth]

Proprioception- The sixth sense * Knowing Which Way is Up On the Vestibular System: "Small, intricately formed and locked in the skull, the vestibular organs continuously bombard the brain with messages. The messages are quite unlike any others. They tell of accelerations, how the head is rotating and translating and its orientation in space. The messages never stop and cannot be turned off. Even when we are completely motionless, they signal the relentless pull of gravity. Perhaps because of their constant monologue, the vestibular sensation is different to the other senses. There is no overt, readily recognizable, localizable, conscious sensation from these organs. They provide a silent sense." (ScienceWeek) [via Current Biology] * Wow! The vestibular. This is consistent with cranial / sacral work. The person gets hypersensitive in this system, and get a vestibular syndrome, where they can barely function. I wonder how much of the brain is various cloaking devices to shut down the full spectrum of perception because if all switches were "open" it would flood the body and mind with "too much information." It speaks to the need to be quiet inside, and let all of this come to homeostasis. * COGNITIVE SCIENCE: ON PROPRIOCEPTION The following points are made by V. Smetacek and F. Mechsner (Nature 2004 432:21): 1) Aristotle argued that human beings have five senses at their disposal. Although various other sense organs have come to light since then, this antique dogma still constrains popular imagination. The term "sixth sense" resonates with instinct and metaphysics, implying that although the five "regular" senses represent reality adequately, there is something else lurking in the subconscious. The search for the sensory system with which the blind guide their movements revealed that the body's sense of posture and movement relies on different types of tiny receptors densely packed in the muscles and tendons. In 1906 Charles Sherrington (1857-1952) coined the term proprioception (perception of one's own) for the sensory modality based on these receptors and called it our "secret sixth sense". But this concept of the body as a major sense organ has failed to arouse the interest it deserves. 2) Proprioception functions in much the same way as the conventional senses. Proprioceptors precisely measure physical properties, such as muscle length, tendon tension, joint angle or deep pressure. Signals from this sensory orchestra are sent by afferent nerves through the spinal cord to the somatosensory, motor and parietal cortices of the brain, where they continuously feed and update dynamic sensory-motor maps of the body. So proprioception provides information on the physics of the body, the momentary distribution and dynamics of masses, forces acting on the limbs and their highly nonlinear interactions. The maps derived from these complex calculations not only guide body movement, they also (together with touch) sense the size and shape of objects and measure the geometry of external space. Weight -- one's own and that of objects -- is measured independently by pressure sensors and muscular tension. So subjective body consciousness provided by myriad networking proprioceptors is the basis of objective knowledge of fundamental physical properties -- space, time and weight -- of external reality. 3) Our daily doings are coordinated and run by a trinity of independent sensory systems: proprioception, vision, and the vestibular organs of the inner ear (which sense balance, momentum, and guide the eyes). Their signals are so tightly integrated that it is impossible to unravel them through introspection, a view which seems to favor vision as the primary sense organ of the mind. But whereas in the congenitally blind other senses more or less compensate for the loss, a child born without proprioception would not know it had a body and would be physically and mentally retarded as a result. 4) Selective loss of proprioception in adults is rare. In the case of Ian Waterman, a rare disease caused degeneration of sensory nerves relaying information from the body to the brain from the neck down, but spared the motor nerves conveying signals in the other direction. He could see, but not feel, where his body was or whether it was moving or not. At the age of 19, he was left a helpless "rag doll", who had to be fed, washed and dressed -- attempts at movement elicited only uncontrolled jerks. However, his strong will and memory of his body enabled him to learn to gradually control and guide his movements with his eyes. But even after 30 years of intense practice, the simplest movement has not been automated, but requires concentrated visual attention so strenuous that he likens it to a daily marathon, and in the dark he still collapses like a rag doll. His case, and a few others, demonstrate that all purposeful movements, both conscious and unconscious, are controlled by proprioception.(1-4) * [via "Nature"] *

[from “Alive On All Channels”]