Heart although this description is disputed, as the heart is likely to be slightly larger. Well-trained athletes can have much larger hearts due to the effects of exercise on the heart muscle, similar to the response of skeletal muscle. The heart has four chambers, two upper atria, the receiving chambers, and two lower ventricles, the discharging chambers. The atria open into the ventricles via the atrioventricular valves, present in the atrioventricular septum. This distinction is visible also on the surface of the heart as the coronary sulcus. There is an ear-shaped structure in the upper right atrium called the right atrial
How Many Fucks How Many Fucks "How Many Fucks" (censored as "How Many F**ks") is a song recorded by American singer Erika Jayne for her upcoming second studio album. Released as the album's lead single, the song was first distributed digitally on April 19, 2016, accompanied by the simultaneous release of a music video. In the video, Jayne performed "seductive" dance moves and wore "risqué" costumes. The song was written by Justin Tranter and Myah Marie, while Adam "Gage" Bruce solely produced the track. Musically, the single is a pop-rap and EDM track that discusses living carefree and without doubt. After its release,