| (i) Ventricular systole | Ventricular diastole | 
| Ventricles contract and the blood flows from ventricles to arteries. | Ventricles are relaxed and the blood flows from auricles to the ventricles. | 
| (ii) Sertoli cell | Spermatids | 
| Present in the germinal epithelium of the seminiferous tubules which provides nourishment to the developing sperms. | Few cells of the germinal epithelium of the seminiferous tubules undergo meiosis to produce spermatids. | 
| (iii) Dwarfism | Cretinism | 
| It is caused due to hyposecretion of growth hormone during childhood. | Caused due to malfunctioning of the thyroid gland in infant. | 
| (iv) Antibodies | Interferons | 
| Acts slowly and long-lasting. | The action is quick but temporary. | 
| (v) Glucocorticoids | Mineralocorticoids | 
| Influences the metabolism of carbohydrates, proteins and fats. | Affects the transport of electrolyte and absorption of sodium ions by the various parts of the uriniferous tubules. |