Integumentary System Notes
Long Bone Structure Homeostasis- Bone Matrix Bone Forensics
Knee Injury
Tinker cad 3D Muscle
This is a model of a muscle fiber, created on tinker cad, which is a 3D ap. There are a variety of tissues that make up the skeletal muscle. To break it down, you start with the bone, coming off the bones are tendons. covering the muscle is fascia. Epimysium, is a type of connective tissue, which lies just beneath the fascia. Perimysium stretches inside the the structure of the muscle where is seperates the fascicle. The 3rd connective tissue, is Endomysium, which actually separates the individual muscle fibers. Blood vessels and nerves pass through these layers. So, in a brief run down is it goes from muscle to fascicles, to muscle fibers, to myofibrils, to the thick (myosin) and thin (actin) filaments. Myosin, is a motor protein that generates the force in a muscle contraction resembling the stroke of an oar. Actin is a spherical protein that forms, among other things, that makes up the thin filament in muscle.