A. Pacemaker cells located in the atria fire before the pacemaker cells in the ventricles. B. It takes time for hormones to diffuse from the atria to the ventricles to trigger contraction. C.The electrical signal generated in the right atrium is delayed at the AV node before passing to the ventricles. D.The ventricular muscle cells contract more slowly than the atrial muscle cells.
LSD is odorless, colorless, and tasteless. It can be painted onto small squares of paper that people lick or swallow.
The correct answer is letter A. Pain receptor - tissue injury. Nociception refers to the processing of harmful stimuli in the nervous system. The nociceptors are also known as "Pain receptor" that responds only to tissue damages cause by either mechanical, thermal stimulation.
Answer:
The id is part of the unconscious mind, and the superego is always conscious.
Explanation:
According to Freud, the id is a primitive and very deep part of the mind, part of the unconscious, where the deepest and most aggressive impulses and the best kept memories are kept. As the id is part of the unconscious, the individual often does not realize that he has this type of thought and impulse.
Freud also analyzed the superego and realized that, unlike the id, the superego is not part of the unconscious but of the moral conscience, where the individual builds his compositions and limits his wills.
