Unit 6 - Organisms respond to changes in their internal and external environments
Resumen
Nerves full a level summary
9 vistas 0 veces vendidas
Grado
Unit 6 - Organisms respond to changes in their internal and external environments
Institución
AQA
These notes helped me get into medical school, I completed my a levels at Guildford high school which consistently ranks among the top schools in the UK and is known for their academic rigour. I made these notes as a summary of the power points that we were taught off of.
Unit 6 - Organisms respond to changes in their internal and external environments
Todos documentos para esta materia (141)
Vendedor
Seguir
anastazjaohearn
Vista previa del contenido
40
nodes Of
↓&
resting >Natout/2kt in -
E
depolarisation only
J
-
raviner
-
e
-
- occurs
↓-
-
---
to kt
O
-
Leakey Axon
at nodes
allowing
N
of raviner
Schwann
the impulse to 'jump'
depolarisation
- 40
Threshold
-
Nat open cells
- Isaltatory
-
-
-
+
+ conduction(
-
68
-
k" closed +
+
+
-
Propagation
repolarisation -
Nat closed
Nat
& "It
#
wa
& -
↳Open refractory period
propagation direction
> ensures is
only
ane
i
Nat
↳
& hyperpolarisation-k"closes
III 1 produces discrete impulses
·
zist
limits
·
strength of an impulse
·
action potential arrives
e
Spatial summation Temporal summation
↑
Ca+ channels open vesicles
causing
·
-several
presynaptic
-
several impulses from
to release neurotransmitter
E neurotransmitter binds with receptors
neurons contribute to a
single presynaptic
/Neurotransmittera
⑳ O
·
· reach a threshold neurone to build up
a
C
·
-
-
-
opening Nat channels neurotransmitter
L- U
-
O...
I
I
presynaptic
membrane
·
neurotransmitter broken down by an
↓ G &N
&
I M v
/
-- Y ↑
:
on nd
&
M
enzy da
o
= synaptic
O
Deft
Nat
&- 11-I 1"Il
-
-
6 postsynaptic
membrane
stretch-mediated Nat channels open when
Agonists <
drugs that stimulate
pressure applied causing depolarisation of
Antagonists ,
drugs that inhibit the neuron
Los beneficios de comprar resúmenes en Stuvia estan en línea:
Garantiza la calidad de los comentarios
Compradores de Stuvia evaluaron más de 700.000 resúmenes. Así estas seguro que compras los mejores documentos!
Compra fácil y rápido
Puedes pagar rápidamente y en una vez con iDeal, tarjeta de crédito o con tu crédito de Stuvia. Sin tener que hacerte miembro.
Enfócate en lo más importante
Tus compañeros escriben los resúmenes. Por eso tienes la seguridad que tienes un resumen actual y confiable.
Así llegas a la conclusión rapidamente!
Preguntas frecuentes
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
100% de satisfacción garantizada: ¿Cómo funciona?
Nuestra garantía de satisfacción le asegura que siempre encontrará un documento de estudio a tu medida. Tu rellenas un formulario y nuestro equipo de atención al cliente se encarga del resto.
Who am I buying this summary from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller anastazjaohearn. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy this summary for 4,31 €. You're not tied to anything after your purchase.
