BPK 142 Lecture Notes - Lecture 4: High High, Biceps, Elastic Energy

• School: Simon Fraser University
• Department: Biomedical Physio & Kines
• Course: BPK 142
• Professor: Mike Walsh

Document Summary

Muscle cells (fibers) are the only cells with contractility (shortens and develops tension) Three types of muscle tissue: skeletal muscle attaches to and moves the skeleton by pulling on the bones to cause it to. Forcefulness of movements are determined by the force and contraction speed in a muscle. Very organized, giving skeletal muscle a set striated pattern (striated muscle) Comprises ~ 36 % of the total body weight in women and 42 % in men. Under involuntary control: cardiac muscle contractile tissue of the heart wall. 3: divisions triceps brachii, quadriceps femoris, size relations gluteus maximus, gluteus medius, gluteus minimus. brevis (short), and longus (long: direction of fibers transversus (across), rectus (straight, skeletal muscle shapes. Longitudinal (strap) fasciculi run parallel to the axis of the muscle sartorius, rectus abdominus: radiate fibers fan out from a single attachment pectoralis major.