Essays on Contractile

Paramecium is a unicellular organism belonging to genus, Protozoa. Like many other Protozoa, paramecium has ciliated body that aids in locomotion. The habitants of protozoa vary from fresh water bodies, marine water, brackish and stagnant waters in in basins and ponds, (Ladenburger 7). Some species of paramecium can easily be cultivated and induced to conjugate. Due to these characteristics, paramecium has been used in laboratories for research purposes. The body of a paramecium is covered by cytoplasmic structures which are called cilia. Cilia are hair like structures which helps the organism in movement. The flickering movement of cilia propels ...

An investigation into the cholinergic receptor control of gastric muscle activity through the action of neurotransmitters

Introduction Different types of neurotransmitters have different effects on the activity of the smooth muscle. Neurotransmitters exert their effects on smooth muscle through binding to different types of neurotransmitter receptors present in smooth muscles. Smooth muscles are involuntary muscles in the body that do not have the ability of controlling their own movements. Smooth muscles are unstriated because they lack the visible cross striations available in other types of muscles like the skeletal muscles (KCUMB, 2012). Smooth muscles are small in diameter 2-10mm. The muscle fibers that make the single unit muscle are complied together into sheets. ...