International Journal of Physiological Sciences (IJPS) focuses on papers that cover and come under broad topics and is not limited to a particular aspect:

Adaptation and environment
Autonomic nervous function
Biophysics
Cell sensors and signaling
Central nervous system and brain sciences
Endocrinology and metabolism
Excitable membranes and neural cell physiology
Exercise physiology
Gastrointestinal and kidney physiology
Heart and circulatory physiology
Molecular and cellular physiology
Muscle physiology
Physiome/systems biology
Respiration physiology
Senses and more