Clinical Effects on the Peripheral Nervous System Due to Excessive Stimulation of Muscarinic Receptors. Excessive Stimulation of muscarinic receptors due to cholinesterase inhibitor poisoning results in increased parasympathetic: (Erdman 2004). 1  Cardiac effects.
A myofibril (also known as a muscle fibril) is a basic rod-like unit of a muscle cell. Muscles are composed of tubular cells called myocytes, known as muscle fibers in striated muscle, and these cells in turn contain many chains of myofibrils.he filaments of myofibrils, myofilaments, consist of two types, thick and thin: 1  Thin filaments consist primarily of the protein actin, coiled with nebulin filaments.
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).t 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).