Phosphorus deficiency. 1  Symptoms: Slow growth and dull yellow foliage. 2  Cause: Phosphorus is needed for healthy roots and shoot growth. 3  Soil shortages of phosphorus are rare, but may occur in areas with high rainfall and heavy clay soil. 4  Remedy: Apply fertilisers such as superphosphate or bone meal.
Smooth muscle is an involuntary non-striated muscle. It is divided into two subgroups; the single-unit (unitary) and multiunit smooth muscle. Within single-unit cells, the whole bundle or sheet contracts as a syncytium (i.e. a multinucleate mass of cytoplasm that is not separated into cells).mooth muscle is found within the walls of blood vessels (such smooth muscle specifically being termed vascular smooth muscle) such as in the tunica media layer of large (aorta) and small arteries, arterioles and veins.
The epiglottis is a flap controlled by smooth muscles. The heart has smooth muscle tissue lining. The diaphragm is made of smooth muscle tissue.There are no skeletal muscles in the circulatory system.onnective tissue supports, protects, and binds other tissues together. The collagen fibers that are found between connective tissue cells provide strength and flexibility. Some examples of connective tissues are bone, cartilage, blood, and adipose (fat).