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 Licks? song as an example of how Sisqó pushed the envelope of sexuality in popular culture. Brittany Vincent of "Billboard" noted it as an example of how the rapper was unafraid of exploring sex in her music. An editor for Apple Music included the song on its "Lil' Kim Essentials" playlist, writing that Lil Kim' "more than held her own as an agile and self-possessed MC who pushed hip-hop toward its unalloyed id". However, African-American studies professor Mark Anthony Neal criticized the single for perpetuating the sexual objectification of women. Comparing "How Many Licks?" with American singer Tweet's 2002 song "Oops