The terminal sulcus is a groove in the right atrium of the heart. The terminal sulcus marks the separation of the right atrial pectinate muscles from the sinus venarum.
What is the sulcus terminalis of the heart?
The sulcus terminalis is an inconsistent depression of the myocardial surface of the right atrium of the heart. It extends a short distance inferiorly and to the right from the space intermediate to the superior vena cava and right auricle.
What is the terminal sulcus of the tongue?
Terminal sulcus (tongue), a groove that separates the tongue into a superior oral surface and a posterior pharyngeal surface.
What is the meaning of Sulci Terminales?
sulcus ter·mi·na·lis | \ -ˌtər-mə-ˈnā-ləs \. plural sulci terminales\ -ˌlēz \. 1 : a V-shaped groove separating the anterior two thirds of the tongue from the posterior third and containing the circumvallate papillae. 2 : a shallow groove on the outside of the right atrium of the heart.
What does sulcus mean in medical terms?
sulcus ter·mi·na·lis | -ˌtər-mə-ˈnā-ləs . plural sulci terminales -ˌlēz . 1 : a V-shaped groove separating the anterior two thirds of the tongue from the posterior third and containing the circumvallate papillae. 2 : a shallow groove on the outside of the right atrium of the heart.
What is the sulcus terminalis of heart?
The sulcus terminalis is an inconsistent depression of the myocardial surface of the right atrium of the heart. It extends a short distance inferiorly and to the right from the space intermediate to the superior vena cava and right auricle.
What is crista terminalis and sulcus terminalis?
The crista terminalis is generally a smooth-surfaced, thick portion of heart muscle in a crescent shape at the opening into the right atrial appendage. On the external aspect of the right atrium, corresponding to the crista terminalis is a groove, the terminal sulcus.
What is the function of the crista terminalis?
Crista terminalisTerminologyEnglish: Crista terminalis Latin: Crista terminalis Synonym: Terminal crestLocationPosterolateral endocardial wall of right atrium of heartFunctionOrigin of pectinate muscles, cardiac arrhythmias, resebmling cardiac neoplasm
What does the terminal sulcus separate?
Terminal sulcus (tongue), a groove that separates the tongue into a superior oral surface and a posterior pharyngeal surface.
Where is the sulcus terminalis located?
right atrium of the heartThe sulcus terminalis is an inconsistent depression of the myocardial surface of the right atrium of the heart. It extends a short distance inferiorly and to the right from the space intermediate to the superior vena cava and right auricle.
What is terminalis?
terminalis. If one looks at the pelvis, the ischial spines protrude while the curve of the linea terminalis slides downwards, forward and inward. In addition to thirst, the organum vasculosum of the lamina terminalis and the subfornical organ contribute to fluid balance by vasopressin release.
What is the triangle of Koch?
Koch's triangle is an important area of human heart, which is located in the superficial paraseptal endocardium of the right atrium, used as an anatomical landmark to locate the atrioventricular (AV) node.
What is a Chiari network in right atrium?
The Chiari network, encountered infrequently in the right atrium, is a fenestrated, net-like embryonic remnants of valves of sinus venosus, lying closely in relation to the inferior vena cava and coronary sinus, sometimes connecting these with other right atrial structures [1].
What is the tip of the tongue called?
ApexApex: This is the tip of the tongue, a pointed portion most forward in the mouth. It is also extremely mobile. Dorsum: This is the curved upper surface towards the back. It has a V-shaped groove on it called the terminal sulcus.
What is the function of the pectinate muscles and the Trabeculae Carneae?
Some sources cite that the pectinate muscles are useful in increasing the power of contraction without increasing heart mass substantially. Pectinate muscles of the atria are different from the trabeculae carneae, which are found on the inner walls of both ventricles.
What do the pectinate muscles do?
The pectinate muscle develops a stable and large force of contraction and hence is superior to strips cut from atrial appendage specimens.
Where does coronary sinus open?
right atriumThe coronary sinus empties directly into the right atrium near the conjunction of the posterior interventricular sulcus and the coronary sulcus (crux cordis area), located between the inferior vena cava and tricuspid valve; this atrial ostium can be partially covered by a Thebesian valve, although the anatomy of this ...
What is the terminal sulcus?
The terminal sulcus marks the separation of the right atrial pectinate muscles from the sinus venarum. The terminal sulcus extends from the front of the superior vena cava to the front of the inferior vena cava, and represents the line of union of the sinus venosus of the embryo with the primitive atrium. On the internal aspect of the right atrium, ...
Which border designates the transverse plane in which the SA node resides?
The superior border of the terminal sulcus designates the transverse plane in which the SA node resides. The inferior border designates the transverse plane in which the AV node resides.
What is the TA in a sulcus?
1. Sulcus terminalis linguae [TA]. A V-shaped groove, with apex pointing backward, on the surface of the tongue, marking the separation between the oral, or horizontal, and the pharyngeal, or vertical, parts.
Where is the crista terminalis located?
The crista terminalis is found at the corresponding location inside the right atrium.
What is the lateral notch sign?
Lateral femoral notch sign is usually first appreciated on the lateral radiograph and is suggestive of an osteochondral fracture 1,2. The depth of the lateral femoral notch sign has been shown to correlate with anterior cruciate ligament (ACL) tear 2 .
What is the notch sign on the femoral condyle?
Lateral femoral notch sign (knee) The (deep) lateral femoral notch sign describes a depression on the lateral femoral condyle at the terminal sulcus, a junction between the weight-bearing tibial articular surface and the patellar articular surface of the femoral condyle.
