Post by Petr Štěpán

🧠 Muscle physiology made easier to revise Skeletal, cardiac, and smooth muscle may look similar at first glance — but physiologically, they behave very differently. That’s why I created this comparison scheme to make the key differences easier to see, understand, and remember. 🔹 Skeletal muscle → voluntary, fast, Ca²⁺ mainly from SR ❤️ Cardiac muscle → autorhythmic, long action potential, Ca²⁺ from ECF + SR 🟢 Smooth muscle → involuntary, slow, Ca²⁺ mainly from ECF, regulated by calmodulin/MLCK The scheme focuses on the details that matter most for revision: ⚡ innervation 🔗 cell-to-cell coupling 🧪 Ca²⁺ source 🧬 regulatory proteins 📈 action potential duration 💪 excitation–contraction coupling ⏱️ contraction speed A small visual summary can make a huge difference when preparing for physiology exams 📚✨ Hope this helps other students revise muscle physiology more clearly and confidently. #Physiology #MedicalStudents #MusclePhysiology #StudyNotes #RevisionNotes #MedicalEducation #MedSchool #BiomedicalScience #CardiacPhysiology