PPSC MCQs

Direct pressure helps compress damaged vessels and promote clotting.
Emergency help is needed if bleeding is severe.

Vitamin A supports retinal pigments and epithelial health.
Deficiency can cause night blindness.

Nitrogen makes up about 78% of the atmosphere.
Oxygen is the second most abundant gas.

The femur is the thigh bone.
It is also one of the strongest bones.

Bones support body shape and protect organs.
They also provide attachment points for muscles.

Tendons are strong connective tissues linking muscles to bones.
They transmit muscular force to the skeleton.

Ligaments stabilize joints by connecting bones.
They limit excessive movement.

The cerebrum is the largest brain region.
It supports conscious thought, sensation, memory, and voluntary movement.

The cerebellum fine-tunes movements and posture.
Damage can cause poor coordination.

The medulla regulates vital involuntary functions.
These include breathing rhythm and heart rate.

Neurons receive and transmit electrical and chemical signals.
They form the basic units of the nervous system.

The eye focuses light onto the retina.
Photoreceptors convert it into nerve signals.