Heart muscle structure, computer illustration and light micrograph. Heart muscle is composed of spindle-shaped cells grouped in irregular bundles. Boundaries between individual cells are faintly visible here. Each cell contains one nucleus, visible as a dark stained spot. Cardiac muscle is a specialised muscle tissue that can contract regularly and continuously without tiring. | |
Lizenzart: | Lizenzfrei |
Credit: | Science Photo Library / Kon, Kateryna |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |