It collects deoxygenated blood and directs it on a pathway to get oxygen from the lungs. Problems with the right atrium can occur from birth or due to problems with the heart valves or muscles. They ...

Return to the starting position with your left leg lifted and your right leg bent. That's one rep. Do 15 reps, then switch sides and repeat. 13. Tone-It V Hold This move uses fast-twitch muscle ...

Muscle is a soft tissue composed of elongated cells (muscle fibres) that produce force and motion through contraction. Involuntary cardiac and smooth muscles are responsible for contraction of the ...

Your pelvic floor is a group of muscles at the bottom of your pelvis that supports the uterus, bladder, and bowel. You may not spend much time thinking about your pelvic floor, but it plays a ...