Cardiac Muscle Flashcards
1
Q
Resilient network of muscle fibers with ability to _
A
Act in unison
2
Q
Beats per life
A
2 billion
3
Q
_ tons of blood pumped in lifetime
A
550,000
4
Q
Adjacent cells closely attached to each other by proteins called _
A
Intercalated discs
5
Q
Structures called _ form junctions
A
Desmosomes
6
Q
Structures called desmosomes form junctions, allowing _ to be transmitted between cells
A
Electrical signals
7
Q
Intercalated discs connect cardiac cells together both _ and _
A
Physically
Chemically
8
Q
Cardiac cells have _
A
Low electrical resistance
(Contractions spread rapidly)
9
Q
A
