Life - Size Heart Human Anatomical Model For Medical Promotion Gift

Basic Information
Place of Origin: Henan,China
Brand Name: Vic Science
Certification: CE
Model Number: VIC-307A
Minimum Order Quantity: 1 Piece
Packaging Details: Carton
Delivery Time: 7-15 works day
Payment Terms: L/C, D/A, D/P, T/T, Western Union, MoneyGram
Supply Ability: 5000 Piece per Month
Product Name: Heart Model Item: Medical Models
Application: Medical School Bilological Class,medical Promotion Gift Size: Life Size
Material: Eco-friendly PVC Usage: Teachers,doctors,etc.
Brand: Vic Science Package: Neutral Bleached Paper Carton,safe Export Packaging And Short Delivery Time
High Light:

human muscle anatomy 3d model

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brain anatomy 3d model

 

Life-Size Heart Model Human Body Model Anatomical Human Organ Model

 

 

 

 

 

Product Name Heart Model
Product No VIC-307A
Material PVC
Size Life-size
Application For school,laboratory and teacher
Packing

50pcs/carton, 66x30x38cm, 25kgs

Details These two models show the anatomy of human heart with ventricles, atriums, valves, veins, and the aorta in great anatomical detail. The front heart wall is removable to view the chambers and internal structures. Dissectible into 2 parts.

 

 

Life - Size Heart Human Anatomical Model For Medical Promotion Gift 0

 

About the heart knowledge

 

The heart is a muscular organ in most animals, which pumps blood through the blood vessels of the circulatory system. Blood provides the body with oxygen and nutrients, as well as assisting in the removal of metabolic wastes. In humans, the heart is located between the lungs, in the middle compartment of the chest.

 

In humans, other mammals, and birds, the heart is divided into four chambers: upper left and right atria and lower left and right ventricles.Commonly the right atrium and ventricle are referred together as the right heart and their left counterparts as the left heart. Fish, in contrast, have two chambers, an atrium and a ventricle, while reptiles have three chambers. In a healthy heart blood flows one way through the heart due to heart valves, which prevent backflow. The heart is enclosed in a protective sac, the pericardium, which also contains a small amount of fluid. The wall of the heart is made up of three layers: epicardium, myocardium, and endocardium.

 

The heart pumps blood with a rhythm determined by a group of pacemaking cells in the sinoatrial node. These generate a current that causes contraction of the heart, traveling through the atrioventricular node and along the conduction system of the heart. The heart receives blood low in oxygen from the systemic circulation, which enters the right atrium from the superior and inferior venae cavae and passes to the right ventricle. From here it is pumped into the pulmonary circulation, through the lungs where it receives oxygen and gives off carbon dioxide. Oxygenated blood then returns to the left atrium, passes through the left ventricle and is pumped out through the aorta to the systemic circulation−where the oxygen is used and metabolized to carbon dioxide. The heart beats at a resting rate close to 72 beats per minute. Exercise temporarily increases the rate, but lowers resting heart rate in the long term, and is good for heart health.

 

Life - Size Heart Human Anatomical Model For Medical Promotion Gift 1


Structure
The human heart is situated in the middle mediastinum, at the level of thoracic vertebrae T5-T8. A double-membraned sac called the pericardium surrounds the heart and attaches to the mediastinum. The back surface of the heart lies near the vertebral column, and the front surface sits behind the sternum and rib cartilages. The upper part of the heart is the attachment point for several large blood vessels—the venae cavae, aorta and pulmonary trunk. The upper part of the heart is located at the level of the third costal cartilage. The lower tip of the heart, the apex, lies to the left of the sternum (8 to 9 cm from the midsternal line) between the junction of the fourth and fifth ribs near their articulation with the costal cartilages.

 

The largest part of the heart is usually slightly offset to the left side of the chest (though occasionally it may be offset to the right) and is felt to be on the left because the left heart is stronger and larger, since it pumps to all body parts. Because the heart is between the lungs, the left lung is smaller than the right lung and has a cardiac notch in its border to accommodate the heart. The heart is cone-shaped, with its base positioned upwards and tapering down to the apex. An adult heart has a mass of 250–350 grams (9–12 oz). The heart is often described as the size of a fist: 12 cm (5 in) in length, 8 cm (3.5 in) wide, and 6 cm (2.5 in) in thickness, although this description is disputed, as the heart is likely to be slightly larger. Well-trained athletes can have much larger hearts due to the effects of exercise on the heart muscle, similar to the response of skeletal muscle.

 

Contact Details
Bella Pang

Phone Number : 86-18037394301

WhatsApp : +8618037394301