C2+S2 Flashcards
What’s a cell?
It’s the base unity of life, structural and functional
How do cells appear
Cell division
Who wrote the cellular theory?
Schleiden+Schwann
What are cells formed from?
70% water+ proteinns+ lipids+ polizaharide+ acizi nucleici, ioni anorganici
What is microtom?
aparat de taiat felii subtiri
What are some strengthening solutions?
Formol
Coloratie selectiva?
Golgi/Nissl-Argentica?
How many neurons we have?
85 miliarde de neuroni-cerebel 80.2%, cortex-19%, ganglioni bazali,diencefal,trunchi cerebral-o.8%
IS there any correlation between the number of neurons and intelligence?
NO
How do we classify neurons?
Form, Number of processes, functions
What are the forms of the neurons?
Piramidali, stelati, granulati
How many processes do neurons have?
Multi, uni, bi polari
What functions do neurons have?
Senzorial(detect changes in the environment), motori, interneuroni
What does the cellular theory say?
Any tissue is formed of cells
Who identified neuron as body and processes?
Golgi
How does the nervous system develop?
Regenerarea recapituleaz[ dezvoltarea
What happens to axons in the SNC?
They don’t regenerate
Who developed the conccept of neuroplasticity?
Minea
What does Golgi have?
Coloratia argentica+teoria reticulara
Neuroștiințele în România?
Gheorghe Marinescu studiaza regenerarea si degenerarea neuronilor din nervi si ganglioni dupa leziuni si transplantare
Cum comunica doi neuroni?
Chimic-neurotransmitatori
What does Galvani believe?
Stimularea nervului determin[ contractia muschiului.
Fritsch și Hitzig believe that….
Stimularea electrică a cortexului frontal determină contracția mușschiului= cortexul e excitabil
Ce e embrioblastul?
Celula din care se formează aproximativ 200 de tipuri de celule
Membrana neurală este…?
Formată din două straturi bilipidice/ neurilemă/5 nm
Cine a descoperit spinii dedndritici?
Cajal
