The cardiac cycle describes the coordinated and rhythmic series of muscular contractions associated with the normal heart beat. The cardiac cycle can be subdivided into two major phases, the systolic phase and the diastolic phase. Systole occurs when...

The relaxation of a hollow organ. It is applied particularly in relation to the rhythmic period of relaxation and dilation of a chamber of the heart during which it fills with blood. See also: DIASTOLIC BLOOD...

n. [rare] The lengthening of a short syllable. Ant. systole. Greek diastolē...

see...

Cardiac cycle is the term referring to all or any of the events related to the flow of blood that occur from the beginning of one heartbeat to the beginning of the next.[1] The frequency of the cardiac cycle is the heart rate. Every single 'beat' of the...

This study investigated the timing of the trigger pull in relation to the cardiac cycle during air rifle shooting. Electrocardiogram) was recorded from 20 male nonelite rifle shooters in two separate testing sessions. The testing was conducted at an indoor shooting range using...

ABSTRACT We examined the influence of cross-bridge cycling kinetics on the length dependence of steady-state force and the rate of force redevelopment (k^sub tr^) during Ca^sup 2+^-activation at sarcomere lengths (SL) of 2.0 and 2.3 µm in skinned rat cardiac trabeculae. Cross-bridge kinetics...

A 4-year-old boy collapsed and died after he wandered in front of a "pitch-back" net and was accidentally struck in the chest by a baseball thrown by another youth.Cayden Huels was a victim of a sudden heart disturbance called "commotio cordis" — Latin for "heart...

A 4-year-old boy collapsed and died after he wandered in front of a "pitch-back" net and was accidentally struck in the chest by a baseball thrown by another youth.Cayden Huels was a victim of a sudden heart disturbance called "commotio cordis" — Latin for "heart...

Provides an overview of the cardiac cycle. Describes what each part does.