nervos
"nervos" rezultate au fost gasite 12
Sistemul nervos |
| Power point. Sistemul nervos | |
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Biologie Numar pagini: 25
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Sistemul nervos |
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Sistemul nervos:este format din elemente care sunt preocupate ,receptia stimulilor,transmiterea impulsurilor,sau pentru activarea mecanismelor muschilor.
Receptarea stimulilor este functia speciala a celulelor senzoriale.Elemente ale sistemului nervos sunt celulele numite neuroni,acestia sunt capabili numai de o activitate inceata si generalizata,desi pot fi si unitati conductoare foarte eficiente....................... . Sistemul, nervos, stimulilor, impulsurilor, senzoriale, neuroni, celulele, impulsul neuronic, ganglioni, vertebrate, creierul, craniu, maduva, spinarii, receptori, nervii, spinali, craniali, reteaua, nervi, neurologia |
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Biologie Numar pagini: 3
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Bulimia nervosa |
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Bulimia nervosa is defined as two or more episodes of binge eating (rapid consumption of a large amount of food, up to 5,000 calories) every week for at least three months. The binges are sometimes followed by vomiting or purging and may alternate with compulsive exercise and fasting. The symptoms can develop at any age from early adolescence to 40, but usually become clinically serious in late adolescence.
Bulimia is not as dangerous to health as anorexia, but it has many unpleasant physical effects, including fatigue, weakness, constipation, fluid retention, swollen salivary glands, erosion of dental enamel, sore throat from vomiting, and scars on the hand from inducing vomiting. Overuse of laxatives can cause stomach upset and other digestive troubles. Other dangers are dehydration, loss of potassium, and tearing of the esophagus. These eating disorders also occur in men and older women, but much less frequently. Women with diabetes, who have a high rate of bulimia, often lose weight after an eating binge by reducing their dose of insulin. According to recent research, this practice damages eye tissue and raises the risk of diabetic retinopathy, which can lead to blindness. . Bulimia, nervosa |
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Engleza Numar pagini: 2
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Afectiuni ale sistemului nervos |
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Afectiunile vasculare cerebrale sunt cele mai importante cause de mortalitate si invadilitate din lume.
Insuficienta circulatorie cerebrala-este legata de existenta unor factori cauzali,predispozitia familiala,alimentatia bogata in glucide si lipide,hipertensiunea arteriala,sedentarismul,obezitatea,alcoolismul,tabagismul precum si starile de tensiune psihica prelungite si repetate. Infarctul crebral-embolia cerebrala-apare datorita procesului de astupare a arterei crebrale.Dupa o ameteala si o durere de cap puternica se constata ca ambele membre sunt paralizate.Infarctul se poate instala brusc prin pierderea cunostiintei si persoana poate intra in coma. Hemoragia crebrala-apare in urma ruperii peretelui unei artere cerebrale si predomina la barbate.Se produce de obicei brusc cu cefalee violenta,ameteala mare,greturi,varsaturi urmate de pierderea cunostiintei si coma.In timpul comei,bolnavul nu raspunde la nici un excitant extern-ciupire,intepare,apasarea globilor oculari etc...................................... . Tumori, leziuni |
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Biologie Numar pagini: 8
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Eating Disorders |
| Eating Disorders Anorexia nervosa: A condition characterized by intense fear of gaining weight or becoming obese, as well as a distorted body image, leading to an excessive weight loss from restricting food intake and excessive exercise. Bulimia nervosa: An eating disorder in which persistent overconcern with the body weight and shape leads to repeat episodes of bingeing (consuming large amounts of food in a short time) associated with induced vomiting. Those are the clinical definitions for eating disorders, the definitions that most people think of when they hear one of the two names. Unfortunately, that’s as far as their thoughts go. Almost no one thinks about what causes them, how the disorders are treated, or, most importantly, what it’s like to have one.............. Eating, disorders |
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Engleza Numar pagini: 4
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Sistemul nervos- Power point nota 10 |
| . Sistem, nervos | |
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Biologie Numar pagini: 7
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Cerebelul |
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Sistemul nervos receptioneaza, transmite si intergreaza informatiile din mediul extern, pe baza carora elaboreaza raspunsuri adecvate, motorii si secretorii.
Sistemul nervos , unitar ca structura si functie, este subimpartit in 1). Sistemul nervos al vietii de realtie ( somatic ) 2). Sistemul nervos al vietii vegetative Sistemul nervos central ( SNC ) sau nevraxul, este alcatuit din: maduva spinarii, trunchiul cerebral, cerebel, diencefal si emisferele cerebrale. In prezenta lucrare ne vom ocupa de cerebel............. . Sistemul, nervos, somatic, central, cerebel, encefal, emisfere, cerebrale, metencefal, lobul, anterior, posterior, floculonodular, arhicerebelul, paleocerebelul, neocerebelul, stratul, molecular, intermediar, granular, fibrele, intrinseci, extrinseci, functiile, atonie, astenie |
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Biologie Numar pagini: 4
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Atentie la alimentele toxice |
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- Sa ne fie frica de ce mancam?
Ghidul produselor toxice din alimentatia de zi cu zi "E"-urile MARGARINA ZAHARUL Inlocuitorii naturali ai zaharului Antidoturi naturale pentru zahar + poze. Alimentele, toxice, zaharul, alb, margarina, amelioratori, aroma, coloranti, sintetici, aromele, sintetice, identic naturale, chimice, organismul, ghidul, produselor, toxice, e-urile, e211, e621, mezelurile, sucurile, aditivi, alimentari, cancer, boli, piele, sistemul, nervos, tulburari, digestive, indigestie, voma, colici, inlocuitori, calciu, caria, dentara, obezitatea, reumatismul, anemia, astenia, degenerescenta, osoasa, scleroza, glicemiei, antidoturi |
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Chimie Numar pagini: 6
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Ochiul si vederea |
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Structura şi funcţiile aparatului vizual
Aparatul vizual, cel mai important organ de simţ, informează sistemul nervos central asupra tuturor modificărilor care au loc în mediul înconjurător. Funcţionează pe principiul sistemul cibernetic, adică are în exterior glo¬bul ocular numit şi "aparat de luat vederi", apoi căi de transmisie a mesajului şi centri corticali de interpretare a imaginii. Globul ocular este în general de formă sferică şi are o structură formată din trei membrane:...... + poza si schema . Ochiul, vederea, vizual, structura, functiile, aparatul, globul, ocular, membrana, externa, sclerotica, corneea, uveea, corpul, ciliar, muschii, ciliari, procesele, ciliare, irisul, pupila, uvcea, posterioara, conul, basto¬nasul, anexele, globului, ocular, orbita, pleoape, aparatul, lacrimal, conjunctiva, bolile, oculare, frecvente, viciile, refractie, ametropiile, dioptrii, hipermetropia, miopia |
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Biologie Numar pagini: 3
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Anorexia And What Causes It |
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Eating disorders are not new. Anorexia nervosa was first formally diagnosed in 1874, and the symptoms have been observed as far back as 300 years ago.(Walsh and Devlin 1) Although the condition has been known for centuries, it seems to be center stage now during the last decade or so.
What is behind Anorexia? Is it inherited? Is Anorexia caused by some type of mental illness, or maybe environmental pressures? Does culture play a role in whether or not someone suffers from Anorexia? These questions are not easily answered,as we know if we have had any family members or close friends who have suffered from Anorexia. It's not as easily diagnosed as the measles or chickenpox, where the doctor knows exactly what the cause is. We will discover that there is no one clearcut cause for Anorexia. According to Women's Health Weekly one research study collected blood from 200 families where at least two of the siblings were suffering from Anorexia, several of the test results suggest a possible link between Anorexia and a shared suseptability gene found in many of the siblings (10) . We must keep in mind that although this research is promising it is still as of yet incomplete data, which in essence makes it a theory. This by no means suggests that there is not a biological link, but that more research needs to be done. . Anorexia |
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Engleza Numar pagini: 2
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Modul in care functioneaza creierul |
| Creierul functioneaza cu ajutorul unor circuite neuronale , sau celule nervoase.Comunicarera intre neuroni este atat electrica cat si chimica, si calatoreste in totdeauna de la dendritele unui neuron , prin soma , prin axon , catre dendritele unui alt neuron. Dendritele unui neuron primesc semnale de la axoni altor neuroni prin chimicalele numite neurotransmitatori. Neurotransmitatorii produc o incarcare electrochimica in soma. Soma integreaza informatia, care este apoi transmisa electrochimic mai departe de axon.................. Modul, functioneaza, creierul, circuite, neuronale, celule, nervoase, comunicarera, neuroni, electrica, chimica, neuron, soma, axon, dendritele, nuclee, senzori, motori, sisteme, electroencefalograma, electrozii, vederea, vorbirea, memoria, sistemul, nervos, autonom |
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Biologie Numar pagini: 3
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Drogurile |
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Persoanele care recurg la droguri au o problema cu increderea in sine, de obicei. Ei apeleaza la substante daunatoare pentru a produce o schimbare temporara in perceptia realitatii si comportamentului pentru a se impresiona pe sine sau pe altii.
Drogul este o substanta solida, lichida sau gazoasa, a carei folosinta se transforma in obicei si care afecteaza direct functionarea sistemului nervos, schimba dispozitia, perceptia si/sau starea de constiinta. Drogul modifica sentimentele, dispozitia si gandirea si dauneaza grav sanatatii............................................................. Droguri |
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Economie Numar pagini: 2
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"nervos" rezultate au fost gasite 12
