Internal organs of frog (digestive system)मेंढक के आंतरिक अंग (पाचन तंत्र)

NCERT Fig 7.2 · interactive diagram

Parts and their functions

• Oesophagus (ग्रसिका) — Short tube from pharynx to stomach.
• Heart (हृदय) — 3 chambers (2 atria, 1 ventricle), covered by pericardium; sinus venosus and conus arteriosus attached.
• Lungs (फुप्फुस) — Pair of elongated pink sacs in the thorax — pulmonary respiration on land.
• Liver (यकृत) — Secretes bile.
• Gall bladder (पित्ताशय) — Stores bile; bile reaches the duodenum via the common bile duct and emulsifies fats.
• Stomach (आमाशय) — HCl and gastric juices digest food into chyme.
• Pancreas (अग्न्याशय) — Pancreatic juice digests carbohydrates and proteins.
• Intestine (आंत्र) — Duodenum then intestine; final digestion; absorption by villi and microvilli.
• Fat bodies (वसा पिंड) — Finger-like yellow fat stores.
• Kidneys (वृक्क) — Compact, dark red, bean-like; made of nephrons (uriniferous tubules).
• Rectum (मलाशय) — Undigested waste passes out via the cloaca.
• Urinary bladder (मूत्राशय) — Thin-walled, ventral to the rectum; opens into the cloaca.
• Cloacal aperture (अवस्कर छिद्र) — Opening of the cloaca — faeces, urine and gametes pass out.

Original diagram drawn by Simple Learning Hub, based on NCERT Fig 7.2. Report a mistake