Cardiac Muscle Cells Flashcards
1
Q
What are Cardiac muscle cells known as?
A
Cardiac Myocytes and contain contractile proteins
2
Q
What is cardiac muscle rich in and what does this show?
A
Rich in mitochondria showing its dependence on aerobic metabolism
3
Q
What causes close cellular association in the branching fibres?
A
Intercalated Disc
4
Q
What links the membranes of adjacent cells at Intercalated Discs?
A
Desmosomes
5
Q
What connects the cytoplasm of the cells either side of the intercalated disc?
A
Special transmembrane channel proteins called Gap Junctions
6
Q
What the Gap juncions provide?
A
Electrical Continuity from cell to cell to allow easy transmission of action potentials
7
Q
What does electrical continuity make the heart?
A
a functional syncytium
