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Hace 4 días · 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 birds.
- Heart
The heart is the organ, or body part, that pumps blood...
- Diastole
diastole, in the cardiac cycle, period of relaxation of the...
- Ventricle
Ventricle, muscular chamber that pumps blood out of the...
- Systole
systole, period of contraction of the ventricles of the...
- Atrium
Atrium, in vertebrates and the higher invertebrates, heart...
- Chambers
Other articles where chamber is discussed: cardiovascular...
- Pericardium
In cardiovascular disease: Rheumatic heart disease …lining),...
- Sinoatrial
Other articles where sinoatrial node is discussed: mammal:...
- Heart
27 de jun. de 2024 · Testis, in animals, the organ that produces sperm, the male reproductive cell, and androgens, the male hormones. In humans the testes occur as a pair of oval-shaped organs. They are contained within the scrotal sac, which is located directly behind the penis and in front of the anus.
Hace 14 horas · Doctors say they can boost the odds donated organs will be usable by restarting blood circulation with a pump after donors are declared dead. Critics say the procedure blurs the definition of death.
26 de jun. de 2024 · The SM2 for the organ was again placed at about 40 feet high in the choir stalls and the SM69 for the piano which was also situated in the centre of the choir stall. A Revox high speed A77 tape...
22 de jun. de 2024 · Abstract. When the recipient of a deceased-donor liver transplant awakens after surgery, he sees a ghostly but kindly figure in his room, and her description matches that of the organ donor.
Hace 6 días · Explore the system that includes the largest organ in the human body. Use 3D models and accompanying detailed descriptions to learn about the anatomy and physiology of our skin, hair, nails, and exocrine glands.
Hace 3 días · The United Nations has six principal organs: the General Assembly, the Security Council, the Economic and Social Council, the Trusteeship Council, the International Court of Justice, and the Secretariat.
