Anatomy of the Ear. The ear is made up of three parts: the outer, middle, and inner ear. All three parts of the ear are important for detecting sound by working together to move sound from the outer part through the middle and into the inner part of the ear. Ears also help to maintain balance. Share this:
The major skeletal muscle groups forming the upper body are the abdominal, pectoral, deltoid, trapezius, latissimus dorsi, erector spinae, biceps, and triceps. The major skeletal muscle groups of the lower body are the quadriceps, hamstrings, gastrocnemius, soleus, and gluteus. Muscles move by contracting.
The three main types are skeletal muscle, smooth muscle, and cardiac muscle. Skeletal muscle has a striped appearance earning its other name striated muscle. It is designed to work at a moments notice but it tires easily. Smooth muscle is not striped. It is designed to work slowly so therefore it tires slowly.