AP PSYCHOLOGY

Detailed explanation-1: -The brain controls what you think and feel, how you learn and remember, and the way you move and talk. But it also controls things you’re less aware of-like the beating of your heart and the digestion of your food. Think of the brain as a central computer that controls all the body’s functions.

Detailed explanation-2: -The brain controls thoughts, memory and speech, arm and leg movements and the function of many organs within the body. It also determines how people respond to stressful situations (i.e. writing of an exam, loss of a job, birth of a child, illness, etc.) by regulating heart and breathing rates.

Detailed explanation-3: -Brainstem: Your brainstem regulates many automatic body functions. You don’t consciously control these functions, like your heart rate, breathing, sleep and wake cycles, and swallowing. Your brainstem is in the lower part of your brain. It connects the rest of your brain to your spinal cord.

Detailed explanation-4: -The tcdrain() function waits until all output sent to fildes has actually been sent to the terminal device. The SIGTTOU signal is generated, and the function is not performed. tcdrain() returns-1 and sets errno to EINTR. The SIGTTOU signal is not sent, and the function continues normally.