Functions of the System• Muscles allow movement.• Muscles give us our body form and shape.• Enables facial expressions used to communication
Functions of Parts• Abdominal: sitting up, postural alignment• Biceps: lifting pulling• Deltoids: overhead lifting• Trapezius: moves head sideways• Oblique: rotation and side extension of body• Latissimus dorsi and rhomboids: postural alignment, open doors
Functions cont• Triceps: pushing• Pectorals: pushing from lying down position• Calves: standing on tiptoes• Gluteus and hamstrings: climbing stairs, walking, standing up
How is it connected to other systems?• Respiratory- as you breathe in the muscles relax, and the lungs expand.• Digestive- When you swallow, the esophagus muscles interact with the digestive system.• Nervous- sends signals to move. NO
Common Illnesses• Muscular dystrophy causes the muscles in the body to become weak. The muscles break down and are replaced with fatty deposits over time.
Common Illnesses• Chronic Fatigue Syndrome• Difficulties with memory and concentration• Sleeping problems• Muscle pains• Tender lymph nodes and sore throat
Common Illnesses• Rhabdomyolysis is the breakdown of muscle fibers.• Some of these are toxic to the kidney and frequently result in kidney damage.
Interesting facts• About 630 total.• The gluteus maximus is the largest.• 72 to speak.• The hardest working muscles are in the eye.• 17 to smile. 43 to frown
Interesting Facts (cont.)• Resting muscles receive about 30% of blood flow.• Muscles use stored ATP in about two seconds.• The circular muscle controls lip movement.