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.
There are three primary types of muscles: skeletal muscles, smooth muscles and cardiac muscle. Skeletal muscles control movements of the body. Limb movement occurs when muscle fibers attached to the bones contract. Muscle contraction is a voluntary response controlled by neural functions that release the energy needed to cause the reaction.