uterus is the organ and reproductive/endocrine system cause the contraction (hormone-oxytocin is released in the body that causes the contractions to occur. If a woman is induced for labor pitocin is given which is the "man made" form of oxytocin
skeletal system, Digestive and Nervous system.
The two main cycles involved in menstruation are the ovarian cycle, which involves the development and release of an egg from the ovary, and the uterine cycle, which involves the thickening and shedding of the uterine lining in preparation for a potential pregnancy.
female reproductive system
The monthly cycle of changes that occurs in the female reproductive system is called the menstrual cycle. This cycle involves the maturation and release of an egg, preparation of the uterus for potential pregnancy, and shedding of the uterine lining if pregnancy does not occur.
The egg is usually fertilized in the ampulla of the uterine (Fallopian) tube. It stays there for about 24 hours, waiting for a single sperm to fertilize it.
Muscle contraction in larger organisms involves the sliding of actin and myosin filaments in muscle cells, which is triggered by the binding of calcium ions to regulatory proteins. This process leads to the overlap of filaments and shortening of the muscle, producing movement. Nerve impulses stimulate the release of calcium ions and initiate the contraction process in response to a signal from the nervous system.
The skeletal system is responsible for storing calcium in the bones. Calcium is crucial for bone strength and overall body function. It is also involved in muscle contraction, nerve signaling, and other important processes in the body.
skeletal system, Digestive and Nervous system.
Muscle fiber generates tension through the action of actin and myosin cross-bridge cycling. While under tension, the muscle may lengthen, shorten, or remain the same. Although the term contraction implies shortening, when referring to the muscular system, it means muscle fibers generating tension with the help of motor neurons (the terms twitch tension, twitch force, and fiber contraction are also used).
The portion of the nervous system that is most closely associated with the contraction of the cardiac muscle is the autonomic nervous system.
The respiratory system is primarily involved in acquiring oxygen. This includes the lungs where gas exchange occurs between inhaled air and blood. The circulatory system also plays a role in transporting oxygen to cells throughout the body.
In mammals, the site of embryo development is the uterus.