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STUDY GUIDE
HEART
| Question | Answer |
|---|---|
| SYSTEM THAT SUPPLIES OUR CELLS TRANSPORTATION NEEDS | CARDIOVASCULAR |
| APEX | BLUNT POINT AT THE LOWER EDGE OF THE HEART LIES ON THE DIAPHRAGM,POINTING LEFT |
| DIVIDES THE HEART INTO RIGHT AND LEFT SIDES OF THE ATRIA | INTERARTERIAL SEPTUM |
| VENTRICLES ARE SEPARTED BY | INTERVENTRICULAR SEPTUM;THICK,PARTITION OF CADIAC MUSCLE |
| CARDIAC MUSCLE TISSUE A.K.A | MYOCARDIUM |
| INFLAMMATION OF THE HEART LINING | PERICARDITIS |
| INNESR LAYER OF THE PERICARDIUM | EPICARDIUM |
| TOUGH OUTER LAYER OF THE PERICARDIUM | FIBROUS PERICARDIUM |
| PERICARDIAL CAVITY | POTENTIAL SPACE BETWEEN VISCERAL AND PARIETAL PERICARDIA |
| VISCERAL PERICARDIUM | BLOOD VESSELS THAT NOURICH THE HEART SEPERATE FROM PARIETAL BY PERICARDIAL CAVITY |
| ENDOCARDIUM | LAYER THAT LINES THE CHAMBERS OF THE HEART AND INTERNAL LINING OF THE BLOOD VESSELS ATTACHED TO HEART |
| SYSTOLE | CONTRACTION |
| DIASTOLE | RELAXATION |
| STRING LIKE STRUCTURES ATTACH THE AV VALVES TO THE WALL OF THE HEART | CHORDAE TENDINEAE |
| PACEMAKER OF THE HEART | SINATRIAL NODE |
| DEPOLARIZATION | POSITIVE IONS MOVE INSIDE CELL MEMBRANES,NEG.IONS MOVE OUT |
| HEART IS CONTROLLED BY | AUTONOMIC NERVOUS SYSTEM |
| FACTORS AFFECT HEART RATE | STRESS;EMOTION;EXERCISE;ANXIETY;AND FEAR |
| FUNCTION OF THE PURKINJE FIBERS | CARRY THE IMPULSES TO THE MYOCARDIUM OF THE VENTRICLES,WHERE THEY STIMULATE VENTRICULAR CONTRACTION |
| LARGEST ARTERY | AORTA |
| 3 TYPES OF BLOOD VESSELS | ATERIES,CAPILLARIES,VEINS |
| RIGHT VENTRICLES PUMP DEOXY. BLOOD TO THE | PULMONARY TRUNK |
| PULMONARY TRUNK FORMS | LEFT AND RIGHT PULMONARY ARTERIES,THAT CARRY BLOOD TO LUNGS |
| WHICH AUTONOMIC DIVISION INCREASES HEART RATE | SYMPATHETIC |
| SYPATHETIC FIBERS SECRETE | NOREPINEPHRINE TO INCREASE THE HEART RATE AND STRENTGHEN MYOCARDIAL CONTRACTION |
| PARASYMPATHETIC FIBERS SECRETE | ACETYLCHOLINE AT THE HEART SYNAPSES;SLOWS THE HEART RATE |
| 70% OF BLOOD FLOW | DUE TO GRAVITY |
| CORRECT SEQUENCE OF BLOOD FLOW | AORTA TO ARTERIOLES TO CAPILLARIES TO VENUIES TO VEINS |
| 2 FACTORS THAT AFFECT MOVEMENT OF FLUID BETWEEN BLOOD IN THE CAPILLARIES AND INTERSTITIAL FLUID | BLOOD PRESSURE AND OSMOTIC PRESSURE |
| MESENTERY | FOLD OF THE PERITONEUM THAT SUPPORTS INTERNAL ABDOMINAL ORGANS |