TheRLNs(recurrentlaryngeal nerve)originate from the Vagus Nervecircle around the subclavian artery(right)and aortic arch (left)，ascendsuperiorly and medially toward thetracheoesophageal groove,enterthelarynxdeep tothe inferior constrictormuscles and posterior to thecricothyroidjoint.The right RLN enters the root of theneckfromamorelateraldirection.Itscourse is less predictable
• The RLNs(recurrent laryngeal nerve) originate from the Vagus Nerve. circle around the subclavian artery (right) and aortic arch (left) , ascend superiorly and medially toward the tracheoesophageal groove, enter the larynx deep to the inferior constrictor muscles and posterior to the c r i c o t h y r o i d j o i n t . • The right RLN enters the root of the neck from a more lateral direction. Its c ou r s e i s l e s s pr e d i c t a b l e
Physiologyproduce thyroid hormonedevelop,regulatemetabolismnecessary for:Metabolismistheprocesses ofenergygrowthgenerationandusebraindevelopmentmetabolism&organ activity
Physiology produce thyroid hormone develop, regulate metabolism necessary for: growth brain development metabolism & organ activity
Physiologythyroid hormonesiodinated amino acids thyroxine (T)o3,5,3'-triiodothyronine(T3)synthesized and storedin thyroid follicular cellintegral part ofthyroglobulin
Physiology thyroid hormones iodinated amino acids thyroxine (T4 ) 3,5,3’-triiodothyronine (T3 ) synthesized and stored in thyroid follicular cell integral part of thyroglobulin
Physiologythyroid hormones in the plasmacirculates as freeamino acidsonly in the free formplays role for metabolismregulationHypothalamusunder anterior pituitary thyrotropinTRHthyroid-stimulating h.(TSH)Pitultary Giand-TSHfeedbackT3.T4T3.T4
Physiology thyroid hormones in the plasma circulates as free amino acids only in the free form plays role for metabolism regulation under anterior pituitary thyrotropin thyroid-stimulating h. (TSH) feedback
HyperthyroidismDescribethecausesDiscusstheprosand cons of thethreemajortreatment optionsKnow howto prepareapatientforoperationDescribeappropriatesurgicalproceduresKnowaboutearlyandlatepostoperative management
Hyperthyroidism ■ Describe the causes ■ Discuss the pros and cons of the three major treatment options ■ Know how to prepare a patient for operation ■ Describe appropriate surgical procedures ■ Know about early and late postoperative management