- In biology,
depolarization or
hypopolarization is a
change within a cell,
during which the cell
undergoes a
shift in
electric charge distribution, resulting...
- this
begins at the
sinoatrial node (SA node); from here the wave of
depolarisation travels down to the apex of the heart. The
hexaxial reference system...
-
prominent features on the ECG: the P wave (atrial
depolarisation), the QRS
complex (ventricular
depolarisation) and the T wave (ventricular repolarisation)...
-
extra deflection that
reflects the
rapid depolarisation of the left ventricle,
followed by the
slower depolarisation of the
right ventricle. An incomplete...
-
slowly rising current (ramp
depolarisation) in vitro. The Hodgkin–Huxley
model also
shows accommodation.
Sudden depolarisation of a
nerve evokes propagated...
- A
sinus rhythm is any
cardiac rhythm in
which depolarisation of the
cardiac muscle begins at the
sinus node. It is necessary, but not sufficient, for normal...
-
concentration of voltage-dependent
calcium channels (which
trigger depolarisation) and calcium-activated pot****ium
channels (for
repolarisation afterwards)...
- an
influx of
positive ions
through the
channel to
cause nerve cell
depolarisation.
Phencyclidine inhibits the NMDA
receptor by
binding to the specific...
-
negative and
therefore exists closer to the
threshold potential.
Cellular depolarisation can be due to a
raised external concentration of pot****ium ions K+,...
- ions, such as Na+ and K+ ions to
enter the cell. This
causes initial depolarisation of the
osmoreceptor and
activates voltage-gated
sodium channel, which...
