Factors that influence muscle tension - Sarcomere length and force, understretched and overstretched

✔ https://HomeworkClinic.com ✔ https://Videos.HomeworkClinic.com ✔ Ask questions here: https://HomeworkClinic.com/Ask Follow us: ▶ Facebook: https://www.facebook.com/HomeworkClinic ▶ Review Us: https://trustpilot.com/review/homeworkclinic.com • Muscle tension generated through the contraction of muscle cells provides the force necessary for the muscular system to function. • The amount of tension produced depends on several factors: • Sarcomere length Frequency of stimulation • Motor unit size • Recruitment of motor units Sarcomere length and force • The length of the sarcomere determines the degree of overlap between myosin (thick filament) and actin (thin filament). • The more the overlap, the greater the number of crossbridges, which form when myosin heads attach to actin. • The greater the number of crossbridges in the myofibril, the greater the amount of tension and the force of muscle contraction. Sarcomere length - understretched • In an understretched sarcomere