Key Learning Points
Heart Anatomy
Muscle Types Page 10
- Voluntary muscle(a) is muscle you have control over such as the biceps muscle on your arm.
- Involuntary muscle(b) is controlled by the autonomic nervous system and hormones.
- Cardiac muscle(c) has a property called, the functional syncytium, which facilitates the spread of electrical signals throughout cardiac muscle.
- Cardiac muscle cells are called myocytes.
The Sarcomere Page 12
- The Sarcomere(a) is the basic unit of cardiac muscle composed of actin(b) and myosin(c) filaments.
