Explanation

• Largest part: Cerebrum.
• Hemispheres: Two — right and left.
• Main functions: Thinking, memory, intelligence, speech, and voluntary movement.
• Cerebellum: Mainly controls balance and coordination.
• Brainstem: Connects the brain with the spinal cord and controls vital functions.

Last verified on 03-09-2026

Explanation

• The Aorta is the largest artery in the human body.
• It carries oxygen-rich blood from the left ventricle of the heart to the rest of the body.
• It is the main artery of the systemic circulatory system.
• The aorta branches into smaller arteries to supply blood to all body organs except the lungs.

Additional information:

• Arterioles are the smallest branches of arteries.
• They carry oxygenated blood from arteries to the capillaries.
• Arterioles regulate blood flow and blood pressure by constricting or dilating.

Last verified on 21-07-2026

Explanation

• Smallest bone: Stapes.
• Location: Middle ear.
• Three ear bones: Malleus, Incus, Stapes.
• Longest bone: Femur (thigh bone).
• Adult human skeleton: Usually 206 bones.
• Newborn: About 270 bones at birth; many later fuse together.
• Human skull: 22 bones (8 cranial + 14 facial)

Last verified on 03-09-2026

Explanation

• The longest bone is the Femur (thigh bone) and the shortest one is the Stapes (one of the 3 small bones inside the ear).
• The largest and broadest is the hip bone or pelvis.

Additional information:

• The lowest part of the backbone called the sacrum.
• The smallest bone is the stirrup (stapes).
• The strongest bone for its size is the lower jaw or mandible.

Last verified on 03-09-2026

Explanation

• The largest solid internal organ is liver.
• It weighs approximately 3–3.5 pounds or 1.36–1.59 kilograms.
• It is about the size of a football.

Last verified on 03-09-2026