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.
The body contains three types of muscle tissue: (a) skeletal muscle, (b) smooth muscle, and (c) cardiac muscle. (Same magnification) Muscle tissue is a soft tissue, and is one of the four fundamental types of tissue present in animals. 1  There are three types of muscle tissue recognized in vertebrates: 1  Skeletal muscle or voluntary muscle is anchored by tendons (or by aponeuroses at a few places) to bone and is used to effect skeletal movement such as locomotion and in maintaining posture. Though this postural control is generally maintained as an unconscious reflex, the muscles responsible react to conscious control like non-postural muscles.