• The Digestive System:
• The mouth opening is lead to buccal cavity.• The esophagus is cylindrical, short (because of the absence of the neck region) and open into stomach.
• The stomach is a muscular curved sac, it has two ends: a cardiac and a pyloric end, which leads into the intestine.
• The intestine is long. Small intestine consists of the duodenum and ileum. Large intestine consists of rectum and opened to the cloacae.
• The following accessory glands connected with the digestive system: liver 3 lobes ( with gall bladder) and pancreas,.
Urinary (Renal) System:
This system consist of pair of kidney , pair of ureter, urinary bladder and cloaca• Each kidney is elongated and dark red in color, and there is abroad irregular yellow patch on ventral surface of each kidney called adrenal gland.
• The urinary bladder is a thin-walled bilobed sac.
The Respiratory System:
Frog breathes by :• Cutaneous respiration
• Buccal respiration
• Pulmonary respiration