Biology

Biology, 21.07.2019 05:40, cheervolley

Cardiac muscle must function without the need for control.

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Biology, 27.06.2019 16:10, DraeDrae138

Which of the following is not a difference between cardiac and skeletal muscle? cardiac muscle cells quickly die in the absence of oxygen; skeletal muscle cells are better able to adapt to oxygen deficiency. the plasma membranes of cardiac muscle cells interlock, but skeletal muscle fibers are independent. cardiac muscle does not use the sliding filament mechanism for contraction; skeletal muscle does. cardiac muscle cells contain more mitochondria than do skeletal muscle cells.

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Health, 27.06.2019 19:10, alicat20

Select the correct statement about the function of myocardial cells. the entire heart contracts as a unit or it does not contract at all. cardiac muscle cells are innervated by sympathetic, parasympathetic, and somatic nerve fibers so that the nervous system can increase heart rate. the refractory period in skeletal muscle is much longer than that in cardiac muscle. the influx of potassium ions from extracellular sources is the initiating event in cardiac muscle contraction.

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Biology, 09.07.2019 06:10, lily3934

What type of muscle is responsible for contractions of the digestive tract and arteries? a. smooth muscle b. skeletal muscle c. striated muscle d. voluntary muscle e. cardiac muscle cardiac muscle is the only muscle composed of fibers. a. branched b. unstriated c. unbranched and cylindrical d. spindle shaped e. striated muscle is attached to a. smooth b. involuntary c. cardiac d. branched e. skeletal

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Health, 11.07.2019 03:20, Justadumbemo

Which statement regarding cardiac muscle structure is accurate? -cardiac cells are long, cylindrical, multinucleate-cardiac cells possess few mitochondria -cardiac muscle cells are independent of one another both structurally and functionally-myofibrils of cardiac muscle tissue vary in diameter and branch extensively

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