Muscles Flashcards
Name the three different types of muscle.
Cardiac
Smooth
Skeletal
Which types of muscle are involuntary?
Cardiac
Smooth
Which types of muscle are voluntary?
Skeletal
Where is cardiac muscle found?
Only in the heart
What is the cardiac muscle of the heart called?
The myocardium
What is cardiac muscle made of?
2
The cells are striated
It is made of intercalated discs and gap junctions
Where is the nucleus located in the cardiac muscle cells?
There is one central nucleus per cell
Where is smooth muscle found?
It is found in the GIT and in blood vessels
What is smooth muscle made of?
2
Non striated cells - smooth cells
Some cells have gap junctions (single-unit), some do not (multi-unit)
Describe the nucleus of smooth muscle cells?
There is one central nucleus in each cell
What is skeletal muscle made of?
2
Very long individual myocytes/myofibres up to 30cm long
Cells are striated
Describe the nuclei of smooth muscle cells.
Multi and peripherally nucleated
