Oxytocin
Uterine muscle cells help make up the myometrium, which is the inner layer of the uterine wall. These muscle cells aid in inducing uterine contractions. They support stromal and vascular tissue as well.
Isotonic contractions. This happens when the muscle shortens as it contracts
Dunno what it does in males (if anything). In females, it stimulates lactation, mostly. If given artificially, it can stimulate contraction of the uterus and parturition (doctors use it to induce labor). But it isn't really clear if the pituitary secretes oxytocin on its own to stimulate labor, or if there is some other mechanism that induces labor.
The chemical changes during muscular contractions include conversion of ATP into ADP, break-down of phosphocreatine and muscle glycogen, formation of Fructose diphosphate and lactic acid and resynthesis of creatine phosphate.
Smooth muscle is the type of muscle that can hold prolonged but slow contractions. It is found in the walls of hollow organs, such as the intestines and blood vessels, and operates involuntarily. Smooth muscle contractions are sustained for longer periods compared to skeletal muscle, allowing for functions like the continuous movement of food through the digestive tract.
Acetylcholine
The nutrient that is not digested but stimulates intestinal muscle contractions is fiber. Fiber is a type of carbohydrate that may be soluble or insoluble.
Nicotien or anything chemical which stimulates the Nicotinic receptors.
Oxytocin stimulates the uterine muscles to contract and also increases the production of prostaglandins, which increase the contractions further. Manufactured oxytocin is sometimes given to induce labour if it has not started naturally or it can be used to strengthen contractions to aid childbirth.
Uterine muscle cells help make up the myometrium, which is the inner layer of the uterine wall. These muscle cells aid in inducing uterine contractions. They support stromal and vascular tissue as well.
Isotonic contractions involve muscle actions where the muscle length changes as it contracts against a constant load. There are two types: concentric contractions (shortening of the muscle during contraction) and eccentric contractions (lengthening of the muscle during contraction).
No, not quite.Prostaglandins are produced which cause the uterine contractions to push out menstrual flow, in a healthy woman this should not be painful. It's when the prostagladins are overproduced that menstrual cramps occur as these cause blood vessels to contract so cut off oxygen to the muscle.
Isometric muscle contractions happen when the muscle stays the same length, concentric contractions occur when the muscle shortens, and eccentric contractions occur when the muscle lengthens.
Uterine smooth muscle
Eccentric muscle contractions involve the lengthening of the muscle under tension, which allows for greater force production compared to concentric contractions where the muscle shortens. This occurs because the muscle fibers can generate more force during the controlled lengthening process in eccentric contractions, leading to greater tension development.
Mitochondria in muscle cells produce energy through a process called cellular respiration, generating ATP (adenosine triphosphate) that fuels muscle contractions. This energy production enables muscle cells to sustain prolonged contractions during physical activities.
Different types of muscle contractions