Anatomy and Cell Biology 2221 Lecture 11: 11 The Heart

• School: Western University
• Department: Anatomy and Cell Biology
• Course: Anatomy and Cell Biology 2221
• Professor: Michelle Mottola

Document Summary

Openings for the svc and ivc: allows deoxygenated blood from the rest of the body to enter the heart. Pectinate muscles: ridges found in the walls that contract in order to pump blood into the ventricles. Interatrial septum: wall between the left and right atria. Fossa ovalis: hole that you have as a child that closes as you take your first breath as a baby is now a divot in the interatrial septum. Crista terminalis- where smooth and rough parts are meeting; the origination of the pectinate muscles. Right auricle like an ear, rough muscle; muscular pouch that functions as additional storage space for blood. Opening to coronary sinus- allows deoxygenated blood from the coronary veins of the heart to enter the right atrium; where veins are draining into. Right ventricle makes up a large part of the anterior surface yellow. Right border of the heart = right atrium. Posterior border of the heart = left atrium.