Cardiovascular System Parts And Functions Pdf

cardiovascular system parts and functions pdf

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Published: 26.04.2021

Oxygen enters the bloodstream through tiny membranes in the lungs that absorb oxygen as it is inhaled. As the body uses the oxygen and processes nutrients, it creates carbon dioxide, which your lungs expel as you exhale.

Cardiovascular system (heart) anatomy

Blood must always circulate to sustain life. It carries oxygen from the air we breathe to cells throughout the body. The pumping of the heart drives this blood flow through the arteries, capillaries, and veins. One set of blood vessels circulates blood through the lungs for gas exchange. The other vessels fuel the rest of the body. Read on to learn more about these crucial circulatory system functions. Pulmonary circulation moves blood between the heart and the lungs.

Major Functions of the Cardiovascular System

Human cardiovascular system , organ system that conveys blood through vessels to and from all parts of the body, carrying nutrients and oxygen to tissues and removing carbon dioxide and other wastes. It is a closed tubular system in which the blood is propelled by a muscular heart. Two circuits, the pulmonary and the systemic, consist of arterial , capillary , and venous components. The primary function of the heart is to serve as a muscular pump propelling blood into and through vessels to and from all parts of the body. The arteries, which receive this blood at high pressure and velocity and conduct it throughout the body, have thick walls that are composed of elastic fibrous tissue and muscle cells.

The cardiovascular system can be thought of as the transport system of the body. This system has three main components: the heart , the blood vessel and the blood itself. Blood can be thought of as a fluid which contains the oxygen and nutrients the body needs and carries the wastes which need to be removed. The following information describes the structure and function of the heart and the cardiovascular system as a whole. The heart is located in between the two lungs. It lies left of the middle of the chest.


more muscular than the right ventricle. Describe the components and functions of the. 5. conducting system of the heart. Explain the events of the cardiac cycle.


Circulatory system

Blood circulates through a network of vessels throughout the body to provide individual cells with oxygen and nutrients and helps dispose of metabolic wastes. The heart pumps the blood around the blood vessels. The plasma is largely water, containing proteins, nutrients, hormones, antibodies, and dissolved waste products. The heart is a hollow muscular organ which beats over , times a day to pump blood around the body's 60, miles of blood vessels. The right side of the heart receives blood and sends it to the lungs to be oxygenated, while the left side receives oxygenated blood from the lungs and sends it out to the tissues of the body.

Pulmonary Circulation and Systemic Circulation: The Routes and Function of Blood Flow

Circulatory

The circulatory system , also called the cardiovascular system or the vascular system , is an organ system that permits blood to circulate and transport nutrients such as amino acids and electrolytes , oxygen , carbon dioxide , hormones , and blood cells to and from the cells in the body to provide nourishment and help in fighting diseases , stabilize temperature and pH , and maintain homeostasis. The circulatory system includes the lymphatic system , which circulates lymph. Lymph is essentially recycled excess blood plasma after it has been filtered from the interstitial fluid between cells and returned to the lymphatic system.

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Describe the major organs of the cardiovascular system and their functions. 4. Describe the anatomy of the heart. 5. Describe the flow of blood through the heart​.


 Что это. - Стратмор только сделал вид, что звонил по телефону. Глаза Хейла расширились. Слова Сьюзан словно парализовали его, но через минуту он возобновил попытки высвободиться. - Он убьет .

Провести романтический вечер в обществе своего главного криптографа. Сьюзан проигнорировала его вопрос и села за свой терминал. Ввела личный код, и экран тотчас ожил, показав, что Следопыт работает, хотя и не дал пока никакой информации о Северной Дакоте. Черт возьми, - подумала Сьюзан.  - Почему же так долго.

Уже в дверях он грустно улыбнулся: - Вы все же поосторожнее. ГЛАВА 67 - Сьюзан? - Тяжело дыша, Хейл приблизил к ней свое лицо. Он сидел у нее на животе, раскинув ноги в стороны. Его копчик больно вдавливался в низ ее живота через тонкую ткань юбки.

Не забывай и о сильнейшем стрессе, связанном с попыткой шантажировать наше агентство… Сьюзан замолчала. Какими бы ни были обстоятельства, она почувствовала боль от потери талантливого коллеги-криптографа. Мрачный голос Стратмора вывел ее из задумчивости. - Единственный луч надежды во всей этой печальной истории - то, что Танкадо путешествовал. Есть шанс, что его партнер пока ничего не знает.

Несмотря на непрекращающееся жжение и тошноту, он пришел в хорошее расположение духа. Все закончилось. Действительно закончилось.

Она попыталась собраться с мыслями. - Сегодня суббота, сэр. Обычно мы… - Знаю, - спокойно сказал.  - Но ситуация чрезвычайная.

 - Я - агент Колиандер. Рядом со мной агент Смит.

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