Answer:
Parts of human heart and its role and functions are explained below in details.
Explanation:
The heart is a muscular organ about the dimension of a hand, positioned just back and slightly left of the breastbone. The heart elevates blood through the system of veins and arteries called the cardiovascular arrangement.
The heart has four chambers:
- The right atrium receives serum from the veins and elevates it to the right ventricle.
- The left side atrium carries oxygenated blood from the lungs and elevates it to the left ventricle.
- The right ventricle takes blood from the right atrium and elevates it to the lungs, where oxygen is filled.
- The left ventricle elevates oxygen-rich serum to the remainder of the body. The left ventricle strong contractions produce our blood pressure.
Answer:
According to Bibb Latane and John Darley's theory of bystander effect the greater the number of bystanders or witnesses to an event that calls for helping behavior, the more the responsibility for helping is perceived to be shared by all the bystanders.
Explanation:
Social psychologists Bibb Latané and John Darley postulated the concept of the bystander effect the infamous murder of Kitty Genovese in New York City in 1964. The woman was stabbed to death outside her apartment, while neighbors watched and failed to step in to assist her or call the police.
