The organ that stores urine before excretion is the: MCQ with Answer and Explanation

Explanation:
The hypothalamus contains numerous nuclei, each with specific functions. The supraoptic nucleus (SON) and the paraventricular nucleus (PVN) are large neurosecretory nuclei located in the anterior hypothalamus. The supraoptic nucleus primarily synthesizes Antidiuretic Hormone (ADH, or vasopressin), while the paraventricular nucleus primarily synthesizes Oxytocin (though both nuclei produce both hormones in smaller amounts). These hormones are transported down the axons of these neurons and stored in the posterior pituitary for release into the bloodstream.

Explanation:
Antibodies are produced by B-lymphocytes (plasma cells), not T-cells. They are immunoglobulins that bind specific antigens. Thus, 2 and 3 are correct.

Explanation:
The pons is a prominent bulge in the brainstem, located between the midbrain and the medulla oblongata. It serves as a relay station between different parts of the brain. Crucially, the pons contains the pneumotaxic center and the apneustic center, which are part of the respiratory control network. These centers modulate the activity of the primary respiratory center in the medulla, regulating the rate and depth of breathing. The cardiovascular center is in the medulla, and visual/auditory reflexes are in the midbrain.