Liver
Circulatory System.
The circulatory system
Sensory organ system
The nervous system.
ciculaoty system
The Digestive System and also the Respiratory System.
The skeletal system.
the bronchioles
Nervous System
An organ system contain many organs which are working together for common purpose.eg.respiratory system is meant for respiratory process which contain many organs starting from nose,nasopharynx,pharynx,trachea,bronchii to lungs.An organ is part of an organ system which usually perform a single or multiple functions.
The skin is part of the Integumentary System, and is the largest organ in the body.
The Respiratory System includes the lungs.