Cardiac muscle

Question 1

Cardiac muscle

Answer 1

-Striations
-Branching cells
-Involuntary
-Usually has a single nucleus, but can have more than one

Question 2

Cardiac muscle (more info)

Answer 2

-Main muscle of heart
-Pumping mass of heart
-Critical in humans
-Behave as one unit
-Always contracts to its full extent

Question 3

Cardiac muscle (more info) continued…

Answer 3

-Cardiac muscle cells are always short, branched and interconnected
-Cells are striated and usually has one nucleus
-Adjacent cardiac cells are joined via electrical synapses (gap junctions)
-Gap junctions appear as dark lines and are intercalated discs