Heart is made of--- A) Tissue B) Blood C) Muscle D) Veins 扫码下载作业帮搜索答疑一搜即得 答案解析 查看更多优质解析 解答一 举报 答案选【C】【tissue】细胞组织【blood】血液【musle】肌肉【veins】静脉,血管心脏是由【心肌】组成,因此选【C】欢迎追问,在线为你解答你的10分满意,我们团队的无限动力】...
Like all organs, your heart is made of tissue that requires a supply of oxygen and nutrients. Although its chambers are full of blood, the heart receives no nourishment from this blood. The heart receives its own supply of blood from a network of arteries, called the coronary arteries. Two...
Like all organs, your heart is made of tissue that requires a supply of oxygen and nutrients. Although its chambers are full of blood, the heart receives no nourishment from this blood. The heart receives its own supply of blood from a network of arteries called the coronary arteries. ...
Heart, organ that serves as a pump to circulate the blood. It may be as simple as a straight tube, as in spiders and annelid worms, or as complex as the four-chambered double pump that is the center of the circulatory system in humans, other mammals, and
The cardiovascular system, in particular, shows considerable sex-related differences, which need to be considered in cardiac tissue engineering. In this Review, we analyse sex-related properties of the heart muscle in the context of health and disease, and discuss a framework for including sex-...
The heart is the first functional organ formed in the embryo. It originates from the splanchnic mesoderm, which emerges from the primitive streak during gastrulation. After precardiac mesoderm specification, progenies form the bilateral heart-forming regions on each side of the embryonic midline in ...
(CAD), injury to your heart from a heart attack, and the healing process after heart surgery. There are several types of arrhythmias, depending on where they start in your heart. Some types of arrhythmia are harmless, but others put you at risk of cardiac arrest, which is when your ...
Intercalated discs are the major portal for cardiac cell-to-cell communication, which is required for coordinated muscle contraction and maintenance of circulation. Forming the inner surface of the myocardial wall is a thin lining called the endocardium. This layer lines the cavities of the heart, ...
completely blocking the flow of blood in the artery beyond the clot. The lack of oxygen immediately causes the affected heart muscle tissue to suffer (myocardial ischemia), become irritable, and have difficulty contracting. If the situation is not reversed quickly, heart muscle will begin to die...
Lastly, engineered heart tissue is an approach that utilizes cells found in the heart such as cardiomyocytes and matrix proteins, in combination, the cells form a bridge-like structure of tissue, which creates a 3D model that resembles tissue in vivo. ...