Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Muscular System Types of Muscle Smooth – involuntary digestive system and blood vessels Cardiac – heart Skeletal – voluntary Over 600 muscles in human body They work in pairs: one muscle moves the bone in one direction and the other moves it back again Muscle make up over half of body weight Function of Skeletal Muscle Support Allow bone movement Protects internal organs and stabilizes joints Help maintain body temp Skeletal Muscle Every muscle is either a Flexor or an Extender. Flexors- Muscles that flex or bend a joint. Extenders- Muscles that extend or straighten joints. Origin- Where the muscle is anchored to a bone to form a stationary attachment. Insertion- The point at which the muscle is attached to a movable bone. Belly – fleshy part of the muscle in between the tendons that does the actual contraction. Names of Skeletal Muscle Location – Origin and Insertion – bicep, tricep, quadricep Shape, size and direction – sternocleidomastoid Number of Origins – tibialis anterior rectus abdominis, gluteus maximus/medius/minimus Function – adductors (pull leg together) Muscles 10 Tricep Shoulder 1 Deltoid Abs (3) 3 Rectus Abdominis 7 Obliques 4 Transverse Abdominis Legs (4) 5 Quadriceps 12 Hamstrings 13 Gastrocnemius 11 Gluteus Back (2) 8 Trapezius 9Latissimus Dorsi Connections Chest Ligaments – connect 6 Pectoralis bone to bone 2 Bicep Tendons- connect muscle to bone