( A ) Atrial natriuretic factor- ventricular wall increases the blood pressure.
( B ) Melatonin- pineal gland, regulates the normal rhythm of sleepwake cycle.
( C ) Oxytocin- posterior pituitary, growth and maintenance of mammary glands.
( D ) Progesterone- corpus-luteum, stimulation of growth and activities offemale secondary *** organs.
