the Endocine system.
It is important to know the roles of each system in the body. The reproductive and the endocrine system is the cause of the onset of the menstrual cycle.
The onset of puberty is triggered by the release of GnRH from the hypothalamus.
Congenital scoliosis is due to congenital abnormal formation of the bones of the spine, and is often associated with other organ defects.
The organ that produces the egg cell in the pine life cycle is called the archegonium.
the brain.
Kidney
Bone cells formtissues. The cycle goes as follows: Cells, Tissues, Organs, Organ Systems.
The heart beating ie. pushing blood around the body. Each pulse is a heart beat, which causes more pressure as it puts pressure behind the blood to move it.
A disease causing organism is called a pathogen.
Drugs, alcohol. Non healthy body
Oxytocin causes the uterus to contract. Oxytocin is released by the posterior pituitary gland.
The nervous system causes the heart to beat faster when you exercise. It itself is not an organ but a system.