anatomyphysiologyblog - KEYS for ANATOMY MCQs: THYROID GLAND
Keys for ANATOMY MCQs: THYROID GLAND is provided inward this post.
2: c
3: b
4: c
5: d
6: a (Superior thyroid artery is commonly the starting fourth dimension branch of external carotid artery)
7: d (Thyrocervical body is the branch of starting fourth dimension role of subclavian artery)
8: c
9: c
10: c
11: a
12: a (Superior laryngeal nerve, a branch of Vagus nerve, gives ascension to internal as well as external laryngeal nerve. External laryngeal nervus supplies the Cricothyroid musculus which is the intrinsic musculus of larynx. The musculus is responsible for stretching/tension/elongation of the song cord.)
13: b (Close to the apex, the nervus runs away from the artery as well as passes deep to the gland. So ligating the artery nigh the apex prevents the injury to the nervus dissimilar ‘away from the apex’ which may Pb to nervus injury due to its unopen human relationship alongside the artery.)
14: c (Recurrent laryngeal nervus is the straight branch of Vagus nerve. On the correct side, the nervus arises at the rootage of the cervix whereas on the left side it arises within the thoracic cavity as well as inward both cases the nervus turns upward as well as runs inward the groove betwixt trachea as well as oesophagus. The recurrent laryngeal nervus supplies the intrinsic muscles of the larynx except cricothyroid. It too provides the sensory innervation to laryngeal mucosa below the degree of song cord.)
15: a (Reason is same equally explained for inquiry # 13. Close to the base of operations or inferior pole the nervus as well as artery are closely related. So it is condom to ligate the artery away from the base of operations of the gland inward a surgical physical care for requiring the removal of thyroid gland.)