<span>In the right atrium, the auricle and anterior wall exhibit obvious muscular ridges called MUSCULI PECTINATI.
Musculi pectinati or pectinate muscles are identified as specialized intracardiac muscle. The muscular ridges are like combs. These ridges help the right atrium dilate without much walls stress during adverse loading conditions.</span>
True.
Emotional health is very important in your life as things can happen that can disrupt it, which will lead to anxiety, sadness, depression, etc.
Natural selection only acts on the population’s heritable traits: selecting for beneficial alleles and thus increasing their frequency in the population while selecting against deleterious alleles and thereby decreasing their frequency
A snail because they have something to imprint ( shell)
