ABSTRACT
Objective To provide transverse sectional anatomical basis for imaging diagnosis of the disease of thigh.Methods 10 right thigh of male adult cadavers (fresh 5,fixed by formalin 5) were used.After the CT and MR imaging examination,all specimens were frozen and cut into 3 transverse sections(upper 1/3,middle 1/3 and lower 1/3).Results The morphological characteristics and the law of variation of the structure,relation,blood vessels and nerves on all transverse sections of thigh were observed.The compact substance and medullary cavity in the middle 1/3 and lower 1/3 of the femurs were measured and compared with the corresponding CT and MR imaging.The significances of all anatomical structures in the imaging diagnostics and the interventional radiology were discussed as well.Conclusion The understanding of the detail sectional anatomy of thigh has an important significance for imaging diagnosis of the disease of thigh.
ABSTRACT
The origin, course, and distribution of the arterial branches of the interatrial septum were studied using 90 human heart specimens (60 ABS casts and 30 transparent specimens).1. There is the branch of the S-A node artery (90 cases, 100%), the A-V node artery (90 cases, 100%), the v-A node artery (90 cases, 100%), Kugel's artery (84 cases, 93.3%), the posterior branch of the left atrium (5 cases, 5.6%), the terminal ramus of the left circumflex branch (4 cases, 4.4%), etc.2. The anastomosis of the interatrial septa of 75 heart specimens were observed. The anastomosis of interatrial septa occurs in 23 cases (30.7%). The common anastomosis site is the circumferential bound of the interatrial septum and the inferior part of the fossa ovalis. 3. The interatrial septum presents more sections of the coronary anastomosis that become the important way of forming the collateral circulation among the coronary arteries. This anastomosis is of great importance in clinical practice.
ABSTRACT
This thesis is the study of the morphology and arterial supply of the papillary musclcs of the left ventricle of 104 human hearts. The maim me-thod used is angiography and corrosion. The commonest number of the anteri-or and posterior papillary muscles is one. In 72 hearts there are musculartrabeculae by which the papillary muscle is attached to the wall of the leftventricle. The projection of the auterior papillary muscle of the left ven-tricle on the heart surface lies most frequently on the middle third regionof a supposed "#"-form region. There are three types of attachment of thepapillary muscle: the free, the attached and the intermidiate, among whichthe largest number is the first type. The arteries supplying the anteriorpapillary muscle are the branches of the anterior descending artery, theleft circumflex artery or these two. Each of the three types amounts to30% or so; the posterior papillary muscle is mostly supplied by the leftventricular posterior branches of the right circumflex artery 9.6 % ). The blood vessels in the papillary muscle belong to class B, each of the papillarymuscles containing 1--3 major vessels measured 0. 1--1 mm in diameter.The three vascular distribution types in the papillary muscle are of axis,segment and mixtnre, and the axial type is most commonly seen of all. Thevascular distribution type j? of certain relation to the attachment type ofthe papillary muscle. The axial distribution is frequently found in the freetype of the papillary muscle. The arteries distributes on either side of thepapillary muscle.
ABSTRACT
Using the angiography and the corrosion methods we studied the arterial distribution of the papillary muscles of the left ventricle in llo dog hearts, according to the peculiarities of vasculature, disscused the influence of obstruction of coronary artery upon the papillary muscle.The anterior and posterior papillary muscles in dog all are tethered type. The average length and width of anterior papillary muscle are 1.96 cm. and 1.10cm, respectively, while those in the posterior papillary muscle are 2.04 cm. and 1.20 cm. respectively.The origins of arterial blood supply of anterior papillary muscle may be classiffied into 4 types, type Ⅰ, in which the arterial branehes are from the anterior descending artery, is in leading position(71%); type Ⅱ, in which branches are both from the anterior descending and left circumflex arteries, is in the next place(18%). Origins of arterial branches of posterior papillary muscle are classed under 2 types: type Ⅰ, in which all arterial branches are from the left circumflex artery, is the most, 91%, among them 65% from the posterior branch of the left ventricle.The peculiarities of arterial distribution in papillary muscles are as follows: 1. All artery branch entering the papillary muscle are of Class B. 2. All are segmental distribution in papillary muscles. Each muscle recieyes 2-9 branches, mostly 5 or 6 branches. 3. Each half of one papillary muscle recieves several branches symmetrically. 4. The arrangement of hrauches may be classiffied into several types; mixed type is the most, then comes the transverse type. 5. The branches anastomose each other to form the subendocardial plexus, which is most evident in the middle and upper third of the papillary muscle.
ABSTRACT
The shape and position of the central fibrous body (CFB) and the relation between the CFB and the conduction system were observed in 30 human hearts (children: 25 cases, adult: 5 cases) in serial sections.The shape of the CFB was wedge-shaped. The CFB of each child was horizontal in position, but the CFB of each adult was nearly sagittal in position.A-V node was a long sagittal flat structure. Its left surface contacted with the CFB and the left surface of A-V node often extended processes into the CFB in the children. The processes were called archipelagos. About 80 percent of the children with superficial archipelagos, and 16 percent with deep archipelagos. The superficial archipelagos in the adults was only found in one case, but the deep archipelagos were not seen.His bundle more permanently penetrated into the right inferior part of the CFB.
ABSTRACT
The morphology and position of the AV node and AV bundle were observed in 13 human hearts with serial sections. 1.the AV node is a long sagittal flatt ened structure, its transverse section is triangular in shape with a right convex surface, sometimes the cross section is fusiform or half oval in shape. Its size is 3.5x3.3x1.1 mm in adult. In 5 cases the endocardium lying on the right surface of the AV node is elevated.2.The AV node is situated in the upper border of the atrioventricular septum (between the levels of the attachment lines of the mitral and tricuspid valves). The adult AV node is 1.8-5.8 mm anterior to the coronary sinus orifice, 0.3-0.7 mm from the endocardium of the right atrium, 3.3-7.5 mm above the upper border of the septal leaflet of the tricuspid valve. The left surface of the AV node contacts with the central fibrous body.3.The AV node can be divided in 2 parts: superficial and deep, the fibers of the super ficial part are longitudinal in sections and end in the lower border of the AV node. In one case, the deep part is subdivided in an upper part and a lower part. In the specimens in which the right atrial endocardium lying on the right surface of the AV node is elevated, the overlaying fibers end in the endocardium. At the upper border, right surface, and posterior margin of the AV node, there are atrial fibers ending to the AV node. 4. The adult AV bundle is 5.7-7.9 mm long, 1.1-1.5 mm in diameter. Its anterior part is on top of the muscular interventricular septum in 7 specimens, on its left surface in 3 specimens, and in the substance of the muscular interventricular septum in 2 specimens. In one case its course is very special, at first on the top of muscular interventricular septum, then at its left surface, finally in the substance of the right part of the muscular interventricular septum.