Question

In a healthy adult, what portion of the heart lies to the right of the midsternal line? one-third O one half two-thirds one-fourth D Question 6 1 pts In a healthy young adult, where would the PMI be located? O below the right nipple, between ribs 3 and 4 O below the left nipple, between ribs 3 and 4 below the left nipple, between ribs 5 and 6 below the right nipple, between ribs 5 and 6

Answer 1

colum anterion between the mum which i 57 Ans - One third Heart is within the mediastinum which is the medial cavity Of the thorax, in between the lungs. Posterior border- near vertebrat colum & anterior border-near stěr mum. It is not situated exactly in the center of the thorax , . Approximately 23rd of the heart in healthy adult hes to the left of the med sternal line. Remaining lama lies to the right 6) eAns: Below left nipple, between 586 Ribs PMT location : point of maximal impulse is the location at which the cardiac impulse can be best palpated on the chest wall- The answer is (c) option because the apex of heart is located in the left 5th intercostal space on the mid clavigilar line , that is between sth & 6th ribs on a line with the midpoint of the left clavicle on PMI Apical pulse is felt so stethoscope is placed just below the left nipple between 5th & 6th ribs.

edno: 7) Cardiac temponade The pericardium is a double walled bac containing the heart & the roots of the great vessels. The pericardial sac has two layers la serous layer & Fibrous layer. It'encloses the pericardai cauty which contains pericardial fluid In cardiac tcmponade Huid gets accumulated in the pericardial space resulting in reduced ventricular filling & subsequent hemodynamio dompromiso cans: 8) Thebesian veins are smallest cardiac minute valveless veins in the walls of the heart. Thesian veins drains into left atrium along with deoxygenated blood originating foom the bronchial veins docining into the pulmonary veins helps contribute to the right to left Physiologic Shunting of the circulation. They play important role in myocardia pertus von Ans: 9) Diffusion It is the spontaneous movement of gases like 02 & CO 2 between the gas in the alveoli & the brood in the capillarics Ans: 19) medula oblongata vasomotor center in the brain stem (medula oblongata) regulates blood pressure & Other homeostatic process