- (A) Hyperplasia
- (B) Hypertrophy
- (C) Fatty infiltration
- (D) Increased amounts of fibrous connective tissue
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- (A) Lasts till cardiac contraction
- (B) Longer than refractory period in skeletal muscle
- (C) A phase of cardiac cycle in which heart cannot be stimulated by any amount of stimulus
- (D) Corresponds with duration of action potential
- (E) All of the above
- (A) AV node
- (B) SA node
- (C) SA node
- (D) Purkinje fibers
- (A) 2.5
- (B) 4.25
- (C) 5.25
- (D) 9.5
- (A) Cardiac efficiency
- (B) Cardiac index
- (C) Mean stroke volume
- (D) Mean arterial pressure
- (A) Isotonic relaxation
- (B) Isovolumetric relaxation
- (C) Isovolumetric contraction
- (D) Isotonic contraction
- (A) Increases heart rate
- (B) Decreases myocardial irritability
- (C) Increases force of contraction
- (D) Increases oxygen uptake by heart
- (A) Reflex hyperpnea
- (B) Reflex Hypercapnia
- (C) Reflex tachycardia
- (D) Reflex Hypercapnia
- (A) is capable of generating impulses
- (B) Has rich sympathetic innervation
- (C) Has poor cholinergic innervation
- (D) Generates impulses at the highest rate
- (A) Closure of the aortic and pulmonary valves
- (B) Opening of the aortic and pulmonary valves
- (C) Closure of the mitral and tricuspid valves
- (D) Opening of the mitral and tricuspid valves
