3 Mixed seromucous salivary glands, structure of glandular acini The three large glands have a different composition in the type of secretory units is concerned: - The parotid glands (which represent 25% of the production of saliva) are formed by serous production units and they are compound acinar type.
How Anti-Lock Brakes Work. An anti-lock brake system (ABS) is a braking system that is made to allow a vehicle to maintain traction with the road when braking. Braking is controlled by driver input via the brake pedal, and older braking systems response to a driver braking suddenly or with intense pressure was sometimes to lock up or skid.
The Hyundai Accent has a hydraulic braking system. The front wheel brakes, called disc brakes, provide the majority of the stopping power. Hydraulic pressure causes the front brake pad to push against the rotor when you apply the brake. This action slows the car down or stops it, but it also leads to brake pad wear.