NATS 1675 Lecture 4: Lecture 4
11 Feb 2017
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Document Summary
The interactions of various systems is needed in development. Organ systems help regulate internal bodily conditions. Homeostasis: maintenance of normal internal conditions in a cell or an organism by means of self-regulating mechanisms. Nervous system: regulates and coordinates the activities if all other systems, any organ has a nerve process and neuro transmitters involved in all body function such as seretonin etc. Endocrine system: endocrine glans secretes hormones, which also regulate and coordinate the activities if other systems. works more slowly than the nervous system. Cardiovascular system: transports oxygen and nutrients to tissue cells and transports wastes away from cells. Also transports hormones secreted by the endocrine glands. Digestive system: supplies blood with nutrients and water for tissue cells. Consumption of food leads to increased glucose in bloodstream. Cells take up glucose level of glucose in the bloodstream falls. Glucose taken up by the liver is stored as glycogen. When blood is low in glucose, glycogen can be broken down.
