Anatomy is a great science
Our first youtube film is ready to run. Please subscribe our youtube channel to support us! Deeply thanks!
All things you want to know about Muscle system anatomy, Muscle system anatomical structure, organs in Muscle system anatomy, the different side of view of Muscle system structure.
Types of Muscle (Muscle Tissue) Muscle cells, often called muscle fibers because they are long and narrow when relaxed, are specialized contractile cells. They are organized into tissues that move body parts or temporarily alter the shape (reduce the circumference of all or part) of internal organs. Associated connective tissue conveys nerve fibers and capillaries to the […]
Read More →
The architecture and shape of a skeletal muscle depend on the arrangement of its fibers. Skeletal Muscles FORM, FEATURES, AND NAMING OF MUSCLES All skeletal muscles, commonly referred to simply as “muscles,” have fleshy, reddish, contractile portions (one or more heads or bellies) composed of skeletal striated muscle. Some muscles are fleshy throughout, but most […]
Read More →
Most of the muscles shown move the skeleton for locomotion, but some muscles—especially those of the head—move other structures (e.g., the eyeballs, scalp, eyelids, skin of face, and tongue). The sheath of the left rectus abdominis, formed by aponeuroses of the flat abdominal muscles, has been removed to reveal the muscle. Retinacula are deep fascial […]
Read More →
Isometric contraction (A) sustains the position of a joint without producing movement. Concentric (B) and eccentric (C) contractions are isotonic contractions in which the muscle changes length: concentric contractions by shortening and eccentric contractions by actively controlled lengthening (relaxation). CONTRACTION OF MUSCLES Skeletal muscles function by contracting; they pull and never push. However, certain phenomena—such […]
Read More →
A. A motor unit consists of a single motor neuron and the muscle fibers innervated by it. B. Epimysium is the same as investing fascia. Actin (thin) and myosin (thick) filaments are contractile elements in the muscle fibers. Whereas the structural unit of a muscle is a skeletal striated muscle fiber, the functional unit of a muscle is a motor […]
Read More →Please subscribe to our youtube channel support us!
Link: Anatomy note youtube channel
Click the like button to support our Facebook page!
