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Several functions of the cardiovascular system can control blood pressure. Certain hormones along with autonomic nerve signals from the brain affect the rate and strength of heart contractions. Greater contractile force and heart rate lead to an increase in blood pressure. Blood vessels can also affect blood pressure.
Pulmonary Circulation. Recall that blood returning from the systemic circuit enters the right atrium (Figure 20.23) via the superior and inferior venae cavae and the coronary sinus, which drains the blood supply of the heart muscle. These vessels will be described more fully later in this section.
2 paź 2024 · Anatomy atlas of the female pelvis: 101 labeled illustrations of the female genital system (ovaries, uterine tubes, uterus, vagina, vulva, clitoris) and pelvic cavity (bladder, rectum, pelvic diaphragm, perineum with innervation and blood supply)
3 lis 2023 · Inferior vena cava tributaries. Lumbar veins, right gonadal vein, renal veins, right suprarenal vein, inferior phrenic veins, hepatic veins. This article will discuss the anatomy of abdominal arteries and veins, as well as topographical approach to the abdominopelvic vasculature.
12 wrz 2023 · The circulatory system is divided into two separate loops: The shorter pulmonary circuit that exchanges blood between the heart and the lungs for oxygenation; and the longer systemic circuit that distributes blood throughout all other systems and tissues of the body. Both of these circuits begin and end in the heart.
Rotate the 3D model to see how the heart's valves control blood flow between heart chambers and blood flow out of the heart. The heart is a hollow, muscular organ that pumps oxygenated blood throughout the body and deoxygenated blood to the lungs.
30 paź 2023 · Circulatory circuit that carries deoxygenated blood from the right heart to the lungs for oxygenation and back to the left heart via pulmonary vessels. Structures: Right atrium, right ventricle, pulmonary trunk, pulmonary arteries, pulmonary veins: Function: Oxygenation of blood