Answer the following questions true (T) or false (F)
1. Desmosomes present between adjacent cardiac muscle cells allow ions to rapidly pass from one cell to another, permitting communication among cardiac muscle cells.
2. The cardiac conduction system is normally regulated by a population of pacemaker cells known as the sinoatrial (SA) node.
3. Heart rate can be determined by measuring the time between two successive R waves on an electrocardiogram (ECG), known as the R-R interval.
1. FALSE
2. TRUE
3. TRUE
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Mice are prone to _______________ which may be cancerous
Fill in the blank(s) with correct word
Slow-oxidative muscle fibers have high resistance to fatigue
Indicate whether the statement is true or false
Which system is most involved with the transport of cells and dissolved materials throughout the body?
A. Endocrine B. Cardiovascular C. Digestive D. Urinary
Inflammation of the fibrous connective tissue resulting in stiffness and soreness is
A. muscular dystrophy. B. fibrositis. C. fibrosis. D. cramps. E. paralysis.