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Nervio Occipital Mayor

Tuesday, 16-Mar-21 07:10:58 UTC

Near the cranium it perforates the deep fascia, and is continued upward along the side of the head behind the auricula, supplying the skin and communicating with the greater occipital, the great auricular, and the posterior auricular branch of the facial. The smaller occipital varies in size, and is sometimes duplicated. It gives off an auricular branch, which supplies the skin of the upper and back part of the auricula, communicating with the mastoid branch of the great auricular. This branch is occasionally derived from the greater occipital nerve. Clinical significance [ edit] Disorder in this nerve causes occipital neuralgia. Additional images [ edit] Dermatome distribution of the trigeminal nerve References [ edit] This article incorporates text in the public domain from page 926 of the 20th edition of Gray's Anatomy (1918) External links [ edit] Anatomy figure: 25:03-01 at Human Anatomy Online, SUNY Downstate Medical Center

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It takes information to the temporal lobe, which interprets the information and helps the brain give meaning to objects in the field of vision. This helps with object recognition and gives conscious awareness to what a person is seeing. Dorsal stream The dorsal stream is the other pathway the primary visual cortex uses to send information. It shares information about an object's location and carries it to the parietal lobe, which takes in other information about the space and shape of objects in the field of vision. Lateral geniculate bodies The lateral geniculate bodies take part of the raw information from the outer part of the retina to the visual cortex. Lingula The lingula gathers general information about the field of vision from the inside half of the retina. The combination of information from the lateral geniculate bodies and the lingula helps create spatial awareness and gives depth to the visual information. Other contributing sections Although modern science has revealed much about how the occipital lobe reveals the visual world, researchers are still learning new information about the occipital lobe and exactly how it functions.

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Lesser occipital nerve Side of neck, showing chief surface markings. (Lesser occip. nerve labeled at center right. ) The nerves of the scalp, face, and side of neck. (Smaller occipital visible below and to the left of the ear. ) Details From cervical plexus (C2) Innervates Cutaneous innervation of the posterior aspect of the auricle and mastoid region Identifiers Latin nervus occipitalis minor TA98 A14. 2. 02. 017 TA2 6384 FMA 6871 Anatomical terms of neuroanatomy [ edit on Wikidata] The lesser occipital nerve or small occipital nerve is a cutaneous spinal nerve arising between the second and third cervical vertebrae, along with the greater occipital nerve. It innervates the scalp in the lateral area of the head posterior to the ear. Path [ edit] The lesser occipital nerve is one of the four cutaneous branches of the cervical plexus. It arises from the lateral branch of the ventral ramus of the second cervical nerve, sometimes also from the third; it curves around and ascends along the posterior border of the Sternocleidomastoideus.

Fauci admits to LYING about Covid-19 herd immunity threshold to manipulate public support for vaccine, moves goal post to 90% — RT USA News

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The occipital lobe is the part of the human brain responsible for interpreting information from the eyes and turning it into the world as a person sees it. The occipital lobe has four different sections, each of which is responsible for different visual functions. Disorder in the occipital lobe may cause disorder in the vision or the brain itself. There may also be a link between the occipital lobe and conditions such as epilepsy. Read on to learn more about the occipital lobe, including its specific functions. The occipital lobe is one of the four major brain lobe pairs in the human brain. The occipital lobe is so named because it rests below the occipital bone of the skull. It is also the smallest of the lobes. There are actually two occipital lobes — one on each hemisphere of the brain. The central cerebral fissure divides and separates the lobes. The occipital lobes are located on the rear part of the upper brain. They sit behind the temporal and parietal lobes and above the cerebellum, separated from the cerebellum by a membrane called the tentorium cerebelli.

Because this combines two images into one image in the brain, it helps give more depth and provide spatial awareness of the environment. That said, the visual world is highly complex. Because of this, the process of decoding this information is also very complex. The sections below will discuss the different sections of the occipital lobe in more detail. Primary visual cortex The primary visual cortex, called Brodmann area 17 or V1, receives information from the retina. It then interprets and transmits information related to space, location, motion, and color of objects in the visual field. It does this through two different pathways called streams: the ventral and dorsal streams. Secondary visual cortex The secondary visual cortex — called Brodmann area 18 and 19 or V2, V3, V4, V5 — receives information from the primary visual cortex. The secondary visual cortex deals with much of the same type of visual information. Ventral stream The ventral stream is one pathway the primary visual cortex uses to send information.

Dr. Anthony Fauci, the epidemiologist revered almost religiously as a hero by mainstream media outlets and Democrat politicians, has admitted that he lied to Americans to manipulate their acceptance of a new Covid-19 vaccine. The intentional deception involved estimates for what percentage of the population will need to be immunized to achieve herd immunity against Covid-19 and enable a return to normalcy. Earlier this year, Fauci said 60-70 percent – a typical range for such a virus – but he moved the goalposts to 70-75 percent in television interviews about a month ago. Last week, he told CNBC that the magic number would be around "75, 80, 85 percent. " When pressed on the moving target in a New York Times interview, Fauci said he purposely revised his estimates gradually. The newspaper, which posted the article on Thursday, said Fauci changed his answers partly based on "science" and partly on his hunch "that the country is finally ready to hear what he really thinks. " "When polls said only about half of all Americans would take a vaccine, I was saying herd immunity would take 70 to 75 percent, " Fauci said.