Fakta og dokumentar
Please note: This is a companion version & not the original book. Book Preview:
#1 The human brain contains approximately 100 billion nerve cells, which are called neurons. The proper functioning of the nervous system depends on communication between the neurons. Each neuron receives oxygen, glucose, and a host of other molecules from adjacent capillaries.
#2 The human brain’s 100 billion nerve cells are richly interconnected, making approximately 100 trillion synapses. In almost all instances, the nerve cells do not actually touch one another; they are separated by this tiny space.
#3 The process of nerve activity begins with stimulation of the cell. The activation of excitatory receptors on the dendrites or the cell body results in a brief change in electrical potential from the cell’s resting state. This change is called an action potential.
#4 The effects of receptor binding vary greatly depending on which type of receptor is activated. Some neurotransmitters are excitatory, while others are inhibitory and act like a brake when turned on. The serotonin system in the brain is an exception, as the molecule serotonin is not inherently excitatory or inhibitory.
© 2022 IRB Media (E-bok): 9798822524057
Utgivelsesdato
E-bok: 21. mai 2022
Tagger
Over 700 000 lydbøker og e-bøker
Eksklusive nyheter hver uke
Lytt og les offline
Kids Mode (barnevennlig visning)
Avslutt når du vil
For deg som vil lytte og lese ubegrenset.
1 konto
Ubegrenset lytting
Lytt så mye du vil
Over 700 000 bøker
Nye eksklusive bøker hver uke
Avslutt når du vil
For deg som ønsker å dele historier med familien.
2-3 kontoer
Ubegrenset lytting
Lytt så mye du vil
Over 700 000 bøker
Nye eksklusive bøker hver uke
Avslutt når du vil
2 kontoer
289 kr /månedFor deg som lytter og leser av og til.
1 konto
20 timer/måned
Lytt opp til 20 timer per måned
Over 700 000 bøker
Nye eksklusive bøker hver uke
Avslutt når du vil
Kos deg med ubegrenset tilgang til mer enn 700 000 titler.
Norsk
Norge