(q6)electrical conduction system
Call Kai
Learn
Practice Test
Spaced Repetition
Match
Flashcards
Knowt Play1/32
There's no tags or description
Looks like no tags are added yet.
Name | Mastery | Learn | Test | Matching | Spaced | Call with Kai | Chat |
|---|
No analytics yet
Send a link to your students to track their progress
33 Terms
primary pace maker
sinoatrial node
60-100bpm
sinoatrial node
starts electrical impulse
sinoatrial node
triggers sequential contraction of atrial myocytes
sinoatrial node
the sinoatrial node triggers…
sequential contraction of atrial myocytes
transmits high speed signal with high speed transmission cells
bachmans bundle
bundle of HIS
structure that:
goes from SA node → across atrioseptal wall → into left atria
bachmans bundle
bachmans bundle route
from SA node across atrioseptal wall into left atria
consists of 3 routes
anterior
middle
posterioir
internodal pathway
signal from SA node → AV node
internodal pathway
internodal pathways go from…
SA node to AV node
momentarily pauses electrical signal before it can go into ventricle
atrioventricular node
atrioventricular node purpose…
pause signal so that the atria can fully contract so blood can fully fill ventricle so that it can contract too
secondary pace maker
atrioventricular node
40-60bpm
atrioventricular node
signal from AV node to right and left ventricle
bundle of HIS
bundle of his is a signal from…
AV node to right and left ventricle
right bundle branch leads to…
right ventricle
left bundle branch leads to…
left ventricle
project from right and left bundle branches
purkinje fibers
directly interface with heart myocytes
perkinje fibers
last ditch pacemaker
purkinje fibers
20-40bpm
purkinje fibers
main function is to initiate depolarization within muscle
purkinje fibers
main function is to trigger contraction in muscle cells
purkinje fibers
contraction of muscle cell is caused by
depolarization within muscle cell
where does the initial electrical impulse start
sinoatrial node
after the sinoatrial node (SA) what follows
bachmans bundle
after the bachmans bundle, what follows?
internodal pathways
after internodal pathways, what follows
atrioventricular node
after atrioventricular node, what follows
bundle of HIS
what follows after bundle of HIS
Purkinje fibers
where does the electrical impulse end
purkinje fibers