| | Conditions & Treatments | Muscle Strains How many muscles do dogs have? A domestic dog has approximately 320 muscles. This number is close to the number of muscles in a human body, which is around 656 muscles. Muscle Strains - Related Articles What should you do if your ligament hurts? Why must arteries be so thick walled and muscular? How to Give a TMJ Massage What is the main function of muscle? Why do you get stretch mark on your hips and sides? The Effects of a Severe Calf Strain What is an analogy for the microfilaments in muscles?