Gigantism and Acromegaly are due to:

1. Hypersecretion of Growth hormone
2. Hypersecretion of Thyroxine
3. Hyposecretion of Growth hormone
4. Hyposecretion of Thyroxine

Pericardium covers the

1. Heart
2. Brain
3. Spinal cord
4. Eyeball

The blood vessel that carries oxygenated blood is :

1. Pulmonary artery
2. Pulmonary vein
3. Renal vein
4. Hepatic vein

Organ of corti is present inside the :

1. Cochlea
2. Semicircular canals
3. Sacculus
4. Utriculus