Milia are small (1 or 2 mm), round white bumps that usually happen on the head and neck. These are common in infants and in adults. In adults, they are often a sign of chronic sun damage. Milia can spontaneously rupture, drain, and resolve on their own, but this make up to 2 years.
Mammals-The muscular system enables animals to move and control movement. The muscular system consists of skeletal muscles which help move the skeleton and control movement, smooth muscles which are involuntary and control the stomach and intestine, and cardiac muscles which include the heart muscles.NVERTEBRATES & VERTABRATES. MUSCULAR Porifera-has no muscular system and is limited myocyte capability in some pinacocytes and although sponges have cells with specialized functions they do not have tissues. There is no endoderm, mesoderm, or ectoderm.
Smooth muscle, such as in the digestive system, is also controlled by the autonomic nervous system. Like heart muscle, it is not under our conscious control. The SNS is responsible for controlling voluntary body movements, such as movement of the arms and legs. It is also responsible for receiving sensory information such as touch, hearing, and sight. The SNS contains neurons that connected with the skeletal muscles, skin, and sense organs. Neurons that control skeletal muscle and organs are called motor neurons.