The process of making a heart model by hand requires the following steps:
1. Prepare materials
clay, which is used to make the shape of the heart, clay of various colors, used to mark different parts, scissors and knives, used for cutting and carving, colored pens, used to add details and logos, aluminum foil and adhesive tape, used to make heart walls and connecting parts
2. Make ventricles and connecting parts. Cover the heart wall with aluminum foil to make it stronger. Add red and blue clay to the ventricles and atria to show the flow of blood.
3. making atria and valves
using clay to create atria and heart valves. Use a knife and pencil to mark the valve.
4. Complete the heart model
Connect all the different parts together and fix them with adhesive tape. Add any other details or logos. When finished, let the model dry and show it.
Expanding knowledge:
1. Making a heart model by hand
is a common way to learn the function and structure of the heart. In the medical field, three-dimensional printing technology has been used to make more realistic heart models to help doctors and patients better understand diseases and surgical procedures. In addition, heart models are also used for educational and exhibition purposes.
II. Heart model
XM-42 heart model is a simulated medical human model, which is an adult heart model. The model is in a relaxed state and can be horizontally rotated on a stent, making two sections, one along the root of pulmonary artery to expose the internal structures of left and right atria, and the other along the coronary sulcus to show the internal structures of left and right ventricles.
The epicardium has been removed, showing the trend of myocardial fibers and cardiac vortex. The heart model is used as an intuitive teaching aid for explaining the heart structure in middle schools and medical schools, which helps students to understand the external shape and internal structure of the heart and the relationship between the big blood vessels entering and leaving the heart and blood circulation.
Third, the shape and position of the heart
The heart is located in the chest cavity, above the diaphragm, between the two lungs, about 2/3 on the left side of the midline and 1/3 on the right side. The heart is a hollow organ mainly composed of myocardium. Its size is like a fist and it is conical. Distraction apex and bottom of heart.
the apex of the heart is at the lower left front, which is the free end; The bottom of my heart faces to the upper right, and connects with great vessels (aorta, pulmonary artery, vena cava and pulmonary vein) to fix the heart in the chest.
There are three shallow grooves on the surface of the heart. Near the bottom of my heart, there is an annular coronary groove which separates the atrium from the ventricle. From the coronary sulcus, there are two longitudinal shallow sulcus, one of which is from the front of the heart (chest rib surface) down to the right side of the apex, called anterior interventricular sulcus. The other is called the posterior interventricular sulcus from the diaphragm surface of the heart down to the right side of the apex.
Anterior and posterior interventricular sulcus is the boundary between left and right ventricle on the heart surface. Both coronary sulcus and interventricular sulcus have blood vessels of the heart passing through.