Physiology

Correct Answer - D Ans. D.Prolactin Galactokinesis Also called milk ejection or milk letdovn. It is brought about by oxytocin which stimulates contraction of the myoepithelial cells in the mammary alveoli and ducts ie.contraction of lactiferous ducts and sinuses. Oxytocin s released when the nipple is stimulated during suckling. @Physiology_videos

Correct Answer - B Ans. B. Submucosal plexus Myenteric plexus (Auerbach's plexus) - External plexus. Meissner's plexus (submucosal plexus) - Inner plexus. @Physiology_videos

Correct Answer - D Ans. D. Cell membrane damage [Ref: Clinical physiology 24th/e p.222] Electromyography is a process of recording electrical activity of muscles. It can be done by either of the two methods: 1. By putting a surface electrode and recording activity of underlying muscle. 2. By inserting a needle electrode into the muscle. There are there types of signals (by needle electrode) : - i) Insertional activity: It is the electrical activity at the time of insertion of electrode due to disruption of cell membrane. This should be ignored. ii) Resting activity (spontaneous activity). iii) Voluntary muscle recruitment. @Physiology_videos

Correct Answer - A Ans. A. Bile salts Bile (Major constituent bile salts) is absorbed in terminal ileum. Iron and calcium are absorbed in duodenum. @Physiology_videos

Correct Answer - C Ans. C. GLUT-4 [Ref Principles of medical physiology p.790] GLUT-4 is responsible for facilitating the transport of glucose into the cells in response to insulin. For this reason, mutation in GLUT-4 have been associated with type 2 diabetes. The GLUT-4 gene is located on short arm of chromosome 17 (17p13). @Physiology_videos