Brain

The brain is the most important organ of the human body. In the brain, everything begins and ends. If the doctor determined brain-dead, man is dead. In the brain are guided complex operations, some man has discovered or explored. Where do thoughts? How is it that we can perceive pain, joy, sadness? How is it that we can show to remember different experiences and dream? All the questions we can not answer, but I firmly believe that human knowledge about the brain will continue to push and to all these questions once we know the answer.

News from the world of the brain

  • brain volume is 1450 m3, weighs approximately 1300 to 1400 grams, which corresponds to 2% of the human weight
  • It contains from 50 to 100 billion nerve cells and synapses to billiard
  • brain is divided into the brainstem, diencephalon and cerebrum
  • consume 20% of the total glucose uptake by the human body
  • a feeling of deja vu that the brain can recognize as similar or the same situation in which we once were
  • the performance of the brain in the elderly is the same as in young nerve cells, however, addresses the situation differently
  • the human brain is far more complex than any computer together. Performance reaches nearly 3584 terabytes of memory
  • worldwide known several cases where people woke up from a coma speaking fluent foreign language
  • the human brain has no nerve endings, thus it can not hurt us

parts of the brain

forebrain

  • Cerebrum – the largest part of the brain
    • Cerebral cortex – 6 layers, each of which prevails modal neurons (60 different species). This is the most important part of the human brain. Breakdown of the cerebral cortex are 11 districts and 52 regions
      • Postcentral – somatosensory and gustatory area
      • Praecentralis – motor,
      • Frontalis – association,
      • Insularis – integration,
      • Temporalis – auditory,
      • Parietalis – association,
      • Occipitalis – visual,
      • Cingularis – involuntary,
      • Retrosplenialis – involuntary,
      • Hippocampica – smell and involuntary memory,
      • Olfactoria – olfactory
    • olfactory brain
    • Basal ganglia – momentum (= disorder Parkinson)
  • Diencephalon – a set of brain structures around the third ventricle
    • T halamus – mediates transition information from the periphery to the cerebellum and the cerebral cortex
    • Metathalamus part of auditory and visual pathways
    • Hypothalamus is responsible for unified action authorities to respond well to physical stimulus (increased stress)
    • Epithalamus made up by the pineal gland, the feeling of sleep changes the ovarian cycle accelerates puberty in boys
    • Subthalamus momentum

midbrain

  • Tectum – decrypt information coming into the brain from the sensory organs
  • Tegmentum – there are trigeminal nucleus, oculomotor nerve and red nucleus

hindbrain

  • Cerebellum – coordination of movements (vertigo when drunk)
  • Pons – corneal reflex (blinking, closing your eyes before approaching the subject), control breathing, oculocardial reflex (compression bulbs will slow heart rate)
  • Medulla oblongata – respiration, digestion, heartbeat, unconditional defensive reflexes, facial movements, speech, balance and normal movements

Without human brain can not exist. Transplants of vital organs like the heart, liver or kidney disease today is at a high level, whether they ever manage to transplant the brain now knows. The brain is so complex that all its functions are not yet known. The brain is one big mystery.

Sicknesses of this body part:

Zika virus

Zika virus

Zika virus, first identified in Uganda in 1947, is transmitted by the same type of mosquito that carries dengue fever, yellow fever, and chikungunya virus. A mosquito bites an infected person and then passes those viruses to other people it…

Transsexuality and transvetitismus

Transsexuality and transvetitismus

Description transsexuality and transvestism Transsexualism is sexual deviance identify any individual. Transsexual man identifies with the female gender, transsexual woman and vice versa with the male sex. Transsexual individuals feel“trapped” in the body of the opposite sex. This deviation affects…

Tic disorders

Tic disorders

Description tic disorders Tics are described as repetitive, nonrhythmic, will partly be influenced, flicks (or vocalisation), which have no purpose and are not subject to any neurological disorder. Manifestation tick can be virtually any movement or sound that the human…

Burnout

Burnout

Description burnout Burnout is not a disease, but rather a psychological conditionoccurring frequently among people working in jobs that require daily interpersonal communication. It is a state of mind described as sheer exhaustion, burnout. Furthermore, present feelings of utter hopelessness…

Schizophrenia

Schizophrenia

Description of schizophrenia Schizophrenia is endogenous psychosis, characterized by a decay of personality particularly affecting the emotional component of the psyche. This mental illness is manifested, for example, disorders of feelings, actions, thoughts and inclinations run away from reality. These…

Postpartum psychosis

Postpartum psychosis

Description of postpartum psychosis Mental disorders after childbirth were already devoted many studies psychiatrists, gynecologists, endocrinologists but also the world. Postpartum mood changes described in antiquity, Hippocrates, Galen and gradually in every century until the present this issue dealt with…

Insomnia

Insomnia

Description insomnia Insomnia or if insomnia is the most common sleep disorders group, whose main symptom is sleep disorder or sleep patterns(interrupted sleep, early awakening). Sleep disorders are divided by principal causes for insomnia(sleeplessness), hypersomnia (excessive sleepiness), circadian rhythm disorders…

Narcolepsy

Narcolepsy

Description narcolepsy Narcolepsy is a chronic disease that affects the nervous system, specifically the brain centers control the process of falling asleep and waking up. It is characterized by sudden and uncontrollable sleep attacks, which can attack humans at any…

Sleepwalking and nightmares

Sleepwalking and nightmares

Description sleepwalking and sleep disorders Sleepwalking and nightmares are among the so-called. Parasomnias, which are nonorganic sleep disorders. The term nonorganic failure then understand diseases that do not have a specific cause in any of the body systems and their origin is…

Manic depression

Manic depression

Description of manic-depressive psychosis Bipolar disorder is characterized by a serious mental illness in which there is a periodic change of mood, vitality, mental functions and overall normal functioning of the body. These changes will rotate after so. Cycles. When…