Identify the INCORRECT statement about the human body: MCQ with Answer and Explanation

Explanation:
Glucagon is a peptide hormone secreted by the alpha cells of the pancreatic islets in response to low blood glucose levels (hypoglycemia). Its primary target is the liver, where it acts to raise blood glucose levels. It stimulates glycogenolysis (the breakdown of stored glycogen into glucose) and gluconeogenesis (the synthesis of new glucose from non-carbohydrate sources like amino acids and glycerol). It also promotes the breakdown of fats (lipolysis) in adipose tissue. It has the opposite effect of insulin.

Explanation:
Aqueous humor is a clear fluid in the anterior and posterior chambers of the eye, providing nutrients and maintaining intraocular pressure. Vitreous humor is the gel in the posterior segment.

Explanation:
The thalamus is a paired structure forming the main part of the diencephalon, situated above the brainstem. It is often described as the 'gateway to the cerebral cortex'. Its primary function is to act as a major relay station, receiving almost all incoming sensory information (except olfaction) and motor signals from various parts of the body and the brain, processing them, and then projecting them to the appropriate specific areas of the cerebral cortex. It also plays a role in regulating consciousness, sleep, and alertness.