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Case M Anatomic structures. Work In Progress - Anatomy Of A Teen Brain. Μαγνητική τομογραφία. Μαγνητικός τομογράφος (Philips Achieva 3.0 T) Η Απεικόνιση Μαγνητικού Συντονισμού (στα αγγλικά Magnetic Resonance Imaging (MRI), ή αλλιώς Πυρηνικός Μαγνητικός Συντονισμός) ή, όπως είναι περισσότερο γνωστή στην Ελλάδα, Μαγνητική Τομογραφία είναι μια ακτινολογική μέθοδος απεικόνισης του εσωτερικού ενός οργανισμού.

Μαγνητική τομογραφία

Θεωρείται τεράστια ιατρική πρόοδος. Ιστορία[Επεξεργασία | επεξεργασία κώδικα] Αρχικά πρέπει να γίνει ιδιαίτερη αναφορά στον μαθηματικό Ζοζέφ Φουριέ ο οποίος ανακάλυψε τους ομώνυμους μετασχηματισμούς, χωρίς τους οποίους θα ήταν αδύνατη σήμερα η ανακατασκευή των φασμάτων και στον Νίκολα Τέσλα για τις εφευρέσεις του σχετικά με τον ηλεκτρομαγνητισμό οι οποίες έδωσαν μεγάλη ώθηση στην περαιτέρω εξέλιξη της τεχνολογίας. Αρχικά το 1924 ο Pauli μετά από σειρά μελετών πρότεινε την θεωρητική ύπαρξη μιας εγγενούς πυρηνικής περιστροφής. Οι πρώτες μελέτες σχετικά με τις μαγνητικές ιδιότητες των πυρήνων ξεκινούν στις αρχές της δεκαετίας του '30 με τους Gorter και Rabi. The Secret Life of the Brain : Episode 3. Cerebral Hemispheres. The cerebrum is divided into right and left hemispheres by the longitudinal fissure.

Cerebral Hemispheres

Νευρικό Σύστημα - Βιολογία Ανθρώπου. Time-Lapse Movies of Brain Development: Supplementary Data. Supplementary Data (Video Sequences) This page contains supplementary data for the manuscript entitled: Dynamic Mapping of Human Cortical Development during Childhood through Early Adulthood (Authors: Nitin Gogtay MD, Jay N. Giedd MD, Leslie Lusk BA, Kiralee M. Hayashi BS, Deanna Greenstein PhD, A. Press Release Time-Lapse Imaging Tracks Brain Maturation Ages 5 to 20. Figure 1 High-Resolution Image Right Oblique Movie Top Movie Bottom Movie Left Movie.

Comparative Neuroanatomy and Intelligence. Have you ever wondered what makes us humans different from, say, a rat?

Comparative Neuroanatomy and Intelligence

Have you ever wanted to see a cerebellum up close and personal? Have you ever looked at a frog and thought to yourself - hmmm, I wonder if he has neocortex? Have you ever wondered how intelligence is defined? If so (or even if not!) , you have come to the right place. You need not have any previous science experience to explore this website or participate in the thought exercises within! This exhibit is organized into four main parts, and if you ever find yourself lost you can use the index on the left to guide you back: First, you may ask why are we studying comparative neuroanatomy? Original Website by Patricia Anne Kinser, Haverford College, December 2000 Biology Major with Concentration in Neural and Behavioral Sciences Advisor: Dr.

Brain Facts and Figures. Explore the nervous system. Divisions of the nervous system table of contents Neuroanatomy: the structure of the nervous system.

Explore the nervous system

To learn how the nervous system functions, you must learn how the nervous system is put together. The nervous system can be divided into several connected systems that function together. Brainfly. The Central Nervous System. The central nervous system is made up of the The spinal cord conducts sensory information from the peripheral nervous system (both somatic and autonomic) to the brain conducts motor information from the brain to our various effectors serves as a minor reflex center The brain receives sensory input from the spinal cord as well as from its own nerves (e.g., olfactory and optic nerves) devotes most of its volume (and computational power) to processing its various sensory inputs and initiating appropriate — and coordinated — motor outputs.

The Central Nervous System

White Matter vs. THE BRAIN FROM TOP TO BOTTOM. A presynaptic neuron has several specialized structures that distinguish it from a postsynaptic neuron.

THE BRAIN FROM TOP TO BOTTOM

The terminal button of the presynaptic neuron’s axon contains mitochondria as well as microtubules that transport the neurotransmitters from the cell body (where they are produced) to the tip of the axon. (click on 2. Axonal Transport) This terminal button also contains spherical vesicles filled with neurotransmitters. These neurotransmitters are secreted into the synaptic gap by a process called exocytosis, in which the vesicles’ membranes fuse with that of the presynaptic button. Work In Progress - Adolescent Brains Are A Work In Progress. FRONTLINE's "Inside the Teenage Brain" focuses on work done by Dr.

Work In Progress - Adolescent Brains Are A Work In Progress

Jay Giedd at the National Institute of Mental Health in Bethesda, Md., together with colleagues at McGill University in Montreal. In a particularly interesting study, Dr. Giedd looked at the brains of 145 normal children by scanning them at two-year intervals. This was work Giedd was only able to do with magnetic resonance imaging, because it requires neither harmful dyes nor radiation, making the study of normal children, as opposed to sick ones, ethically tenable. How Your Brain Works". Every animal you can think of -- mammals, birds, reptiles, fish, amphibians -- has a brain.

How Your Brain Works"

But the human brain is unique. Although it's not the largest, it gives us the power to speak, imagine and problem solve. It is truly an amazing organ. The brain performs an incredible number of tasks including the following: It controls body temperature, blood pressure, heart rate and breathing.It accepts a flood of information about the world around you from your various senses (seeing, hearing, smelling, tasting and touching).It handles your physical movement when walking, talking, standing or sitting.It lets you think, dream, reason and experience emotions. All of these tasks are coordinated, controlled and regulated by an organ that is about the size of a small head of cauliflower.

The Brain: Understanding Neurobiology Through the Study of Addiction.