Symptoms: Many dogs with Giardia are 'a-symptomatic' which means that they don't show any symptoms, but continue to 'carry' and transmit the disease. However, the main symptom is diarrhea, which is often watery and foul-smelling. Vomiting, weight loss and lethargy may also occur.
A voluntary muscle is when you consciously choose to move a muscle, like pointing a finger or picking up a glass for example. Skeletal muscles are voluntary. Its activity can be consciously controlled by our bodies because those are the bones that allow us to move our muscles and bones when we want. An involuntary muscle is when it moves without you choosing to, such as heart muscles or reflex muscles like blinking an eye.
The muscular system is made up of tissues that work with the skeletal system to control movement of the body. Some musclesâlike the ones in your arms and legsâare voluntary, meaning that you decide when to move them. Other muscles, like the ones in your stomach, heart, intestines and other organs, are involuntary. This means that they are controlled automatically by the nervous system and hormonesâyou often don't even realize they're at work. The body is made up of three types of muscle tissue: skeletal, smooth and cardiac. Each of these has the ability to contract and expand, which allows the body to move and function. . 1  Skeletal muscles help the body move.