601. Which of the following muscular valve controls the flow of digestive juice from the hepatopancreatic duct to duodenum?

A. Sphincter of Oddi *
B. Semilunar valve
C. Ileocaecal valve
D. Pyloric sphincter

602. Which of the following is present on the surface of intestinal epithelial cells?

A. Zymogen granules
B. Pinocytic vesicles
C. Phagocytic vesicles
D. Microvilli *

603.Lungs are enclosed within

A. Perichondrium
B. Periosteum
C. Pleural membrane *
D. Pericardium

604. The maximum amount of urea is present in

A. Dorsal Aorta
B. Hepatic Vein *
C. Renal Vein
D. Hepatic Portal Vein

605. Which of the following organs is known as “graveyard” of RBCs?

A. Spleen *
B. Kidney
C. Liver
D. Gall bladder

606. Which of the following organs contains ‘Bundle of His’?

A. Pancreas
B. Brain
C. Kidney
D. Heart*

607. Heartbeat originates from

A. papillary muscles
B. SA node *
C. AV node
D. Purkinje fibres

608. Which of the following features is common in both humans and adult frogs?

A. Internal fertilization
B. Ureotelic mode of excretion*
C. Nucleated RBCs
D. Four chambered heart

609. The basic functional unit of a human kidney is known as

A. Nephron *
B. Pyramid
C. Henle’s loop nephron
D. Nephridia

610. Single uriniferous tubule does not contain

A. Loop of Henle
B. Collecting duct *
C. Distal convoluted tubule
D. Bowman’s capsule