Why is the heart a muscle and not an organ? Is it both an
2016年3月17日 · The heart is an organ which is made from muscle. Organs are a collection of tissues that are specialised for their purpose. Muscle is a type of tissue. The heart is made up of a collection of different tissues such as nervous tissue, connective tissue and cardiac muscle (muscle specialised for the heart) and blood (which is classified as a tissue as it is a collection of cells!). However ...
Which is more important, the heart or the lungs? What are
2017年2月4日 · Explanation: In order to simply explain why we can't choose which is more important, we must first understand what these 2 organs primarily do. The Heart- It is the only blood pump inside the body. Without it, the blood will stay stagnant inside the blood vessels. Therefore, the blood will not get oxygenated because it cannot go to the lungs ...
Which organ develops first in a human embryo? - Socratic
2016年9月13日 · Heart. The process of cell division and cellular differentiation of embryo during the early stages of development is called embryogenesis. The development of organs start during the third week of embryogenesis and is called organogenesis. The heart is the first functional organ to develop and starts to beat and pump blood at around 21 - 22 days. It develops as a horse shoe shaped area , near ...
What are the organs of the circulatory system? - Socratic
2018年6月11日 · The main organ is the heart. The heart constantly pumps blood throughout the body. The blood travels through blood vessels which are organs of the circulatory system. These are the types of blood vessels: arteries: blood vessels that carry away blood from the heart to the rest of the body arterioles: deliver blood to capillaries; controls how much blood enters the capillaries capillaries: tiny ...
Which chamber of the heart receives deoxygenated blood ...
2016年2月23日 · Right Atrium Our heart has four chambers, two atria (right and left) and two ventricles (right and left). The right atrium receives the de-oxygenated blood from the body. From the right atrium blood passes to the right ventricle. The right ventricle propels this de-oxygenated blood to the lungs though pulmonary artery, for oxygenation. The deoxygenated blood loses carbon-di-oxide and gains ...
What internal organ is below the heart, about level with the belly ...
2015年12月29日 · Explanation: It is either the stomach, the liver, or the intestines. Since you said: about the level with the belly button, it should be the intestines. It should be the intestines. But it could be... It is either the stomach, the liver, or the intestines. Since you said: about the level with the belly button, it should be the intestines.
What does the cardiovascular system do? - Socratic
2016年2月11日 · The cardiovascular system transports nutrients, oxygen and hormones to cells; carry away waste products from cells; regulate body temperature and fight against infection. The cardiovascular system consists of the heart and blood vessels (arteries, veins and capilaries). The following picture is a schematic diagram of the cardiovascular system : The heart pumps blood through blood vessels and ...
Organization of the Human Body - Anatomy & Physiology - Socratic
The overall reaction in the body is described by the equation C6H12O6 (aq) + 6O2 (g) = 6CO2 (g) + 6H2O (l). How many grams of oxygen are required to convert 28.0 g of glucose to CO2 and H2O? What are the 5 levels of the human body? Why is it important to use a system of location similar to north/south and east/west to describe location on a ...
What is the difference between a hepatic vein and a hepatic
2016年2月28日 · 1 Answer. Trevor Ryan. Hepatic portal vein carries blood and nutrients from the stomach, spleen, intestines and gall bladder to the liver. The hepatic vein carries deoxygenated blood from the liver back to the right atrium of the heart via the inferior vena cava. Hepatic portal vein carries blood and nutrients from the stomach, spleen ...
What organ system does the kidney belong to? - Socratic
2016年2月1日 · Answer link. Kidneys belong to Excretory system. Liver belongs to Alimentary system. Kidneys are part of the excretory system (urinary system). This system is associated with excretion of metabolic waste products and formation and excretion of urine. Other organs of the system are ureters, urinary bladder and urethra.