Applied Radiological Anatomy for Medical Students Applied - part 10

Sau đây được thể hiện: hai buồng tâm nhĩ có kích thước bằng nhau (LA là sau gần với cột sống của thai nhi), hai buồng tâm thất có độ dày như nhau, RV độ cong lớn hơn một chút so với bên trái (rõ ràng hơn trong tam cá nguyệt thứ ba), van hai lá và ba lá , não thất và nội tâm nhĩ SEPTA, sau này có chứa các-lỗ ovale với nắp của nó. | Obstetric imaging IAN suchet and ruth WILLIAMSON Foraminal flap. Septum Interventricular y septum -Moderator band CN2 HI DR66 G 34 5 12 51 00 Tricuspid valve closed EH Mitral valve closed 870198962 82 14 81 15 45 48 ULTRASOUNDSIHAGING CONSULTANT GA LHP 36820 P78 4HHz C358 Septum primum . Descending aorta Spine- S 36. 6G LA RV HI CN4 c DR72 G 54 0 36 58 00 Foramen oiate ULTRASOUNDS IMAGING CONSULTANT GA LKP 33I5D P100 5MHz C358 B12 Fig. . Four-chamber view of heart. The following are demonstrated two atrial chambers of equal size LA is posterior closer to the fetal spine two ventricular chambers of equal thickness RV camber is slightly larger than the left more obvious in third trimester mitral and tricuspid valves intraventricular and intra atrial septa the latter containing the foramen ovale with its flap. renal pelvis Vertebral body 2 53 12 Transverse plane MKB. 4 CN3 14cal4 72DR72 42G42 ULTRASOUNDSIMAGING CONSULTANT GA EDD 29IBD P89 4MHz C358 G Laminae of KIDNEYS lumbar vertebrae Fig. . Fetal kidneys. Axial section through fetal kidneys showing their posterior location on either side of the fetal spine. Fig. . Umbilical cord. This demonstrates the Mickey Mouse cross-section formed by the smaller paired umbilical arteries alongside the larger umbilical vein. Fig. . Fetal liver and spleen. Axial section demonstrating homogeneous reflectivity of liver and spleen which together occupy much of the abdomen. Fig. . Typical appearance of the placenta showing insertion of umbilical cord. The chorionic plate and placental villi comprise the fetal portion of the placenta whilst the basal plate is the much smaller maternal component. 151 Obstetric imaging IAN suchet and ruth WILLIAMSON fetus while the paired arteries transport deoxygenated blood from the fetus to the placenta. The cord usually inserts centrally into the placenta and into the fetus at the umbilicus. A collagenous material called Wharton s jelly supports the spiraling .