smooth, controlled muscle contractions are due to

when a muscle cell generates tension but does not shorten, the 'contraction' is

a force- velocity curve shows a(n) ______ relationship between the force opposing the contraction and its velocity

a reserve of high-energy phosphate is stored in muscle as

slow twitch muscle fibers have a ___ oxidative capacity and ___ glycogen content

muscle fatigue occurs when

______ is a 'flapping' tremor caused by alternating activation of antagonistic reflex arcs

_______ is the inhibition of an antagonistic muscle so the agonist can act unopposed

cardiac muscles are conductive because

in cardiac muscle, calcium ions are released from the sarcoplasmic reticulum by

as smooth muscle lacks troponin, the activation of myosin-actin cross bridges is mediated by

the pathway from the heart, through the lungs, and back to the heart is

the _______valve prevents blood from flowing back to the left atrium from the left ventricle.

the amount of blood pumped by the ventricles with each heartbeat is the

systole refers to ______, while diastole refers to _____

on average the ejection fraction of the left ventricle is about 60% of the _______

opening more slow Calcium Ion channels in the autorhythmic cells of the SA node would

the cardiac pacemaker cells known as HCN cells open in response to ____ and allow passage of ___

Myocardial cells exhibit a plateau phase instead of quickly repolarizing. This is due to

The production and conduction of action potentials in the heart produces a recordable tracing of the electrical activity of the heart called a(n) 

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