The egg is released from the ovary into the fallopian tube during ovulation. It travels through the fallopian tube toward the uterus. If fertilization occurs, the egg implants in the uterus; if not, it will be discharged during menstruation.
The anatomical positions are supine (lying face-up), prone (lying face-down), lateral (lying on the side), sitting (upright position), and standing (upright position). These positions are used as a reference point to describe the location of body parts.
Afferent vessels lead toward an organ.
nervous system
The ascending aorta is the first part of the aorta that rises from the heart, while the thoracic aorta is the portion of the aorta that extends from the top of the heart to the diaphragm. The ascending aorta is smaller and carries oxygenated blood away from the heart, while the thoracic aorta is larger and branches into various arteries that supply oxygenated blood to different parts of the body.
your veins look blue because your blood has no oxygen, when your blood is oxygenated it is red and when it is deoxygenated it is blue. veins carry blood toward the heart and are often blue while arteries carry blood away from the heart and are filled with oxygenated blood.
Viens do not have a pulse, but they do have valves that arteries do not. Most veins carry oxygenated blood toward the heart. The only exception is the pulmonary veins that carry oxygenated blood to the left atrium of the heart. The same is true for arteries. They carry oxygenated blood from the lungs to the rest of the body except the lungs. The pulmonary arteries are the only exception because they carry deoxygenated blood to the lungs.
Highly oxygenated blood enters the heart via the pulmonary veins into the left atrium of the heart. Veins return to the heart and normally have relatively deoxygenated blood (pulmonary veins are an exception to this rule and have freshly-oxygenated blood) while arteries go away from the heart and have highly oxygenated blood (the pulmonary artery bringing blood from the right ventricle toward the lungs is an exception and has poorly oxygenated blood).
Arteries carry blood away from the heart, whereas veins carry blood toward the heart. In general, arteries carry oxygenated blood and veins carry deoxygenated blood. This is NOT the case for the pulmonary vein, which brings freshly oxygenated blood back to the left side of the heart so that it can be distributed to the rest of the body.
Veins carry deoxygenated blood back to the right atrium of the heart, which sends it through the tricuspid valve to the right ventricle to the pulmonary semilunar valve to the pulmonary arteries to the lungs (to become oxygenated and get rid of waste gases) to the pulmonary veins to the left atrium of the heart through the bicuspid valve to the left ventricle through the semilunar aortic valve to the ascending aorta to the aortic arch and out to the body. So the only veins that are oxygenated are the pulmonary veins that carry the oxygenated blood from the lungs to the left atrium of the heart. They are still called veins because they carry blood TO the heart. Thus, the only deoxygenated blood in arteries is also the pulmonary arteries, because they carry the deoxygenated blood AWAY from the heart to the lungs. All veins must carry blood toward the heart and all arteries must carry blood away from the heart.
The veins. The Inferior and Superior Vena Cavae carry deoxygenated blood towards the heart from the body whereas the pulmonary vein carries oxygenated blood.
There is no "blue blood," only red blood. Deoxygenated blood is dark red and oxygenated blood is bright red. Deoxygenated blood (dark red) picks up oxygen at the lungs in the alveoli. The high concentration of oxygen in the lung cavities diffuse into the low concentration of oxygen in the blood. The oxygen binds to the hemoglobin and becomes "oxygenated," and continues to the systemic circuit.
The veins
The veins
Arteries carry oxygenated blood away from the heart to the body's tissues, while veins carry deoxygenated blood back to the heart. This key difference in oxygenation levels within the blood is what distinguishes arteries from veins.
Pulmonary vein
Veins carry blood towards the heart. Arteries carry it away from the heart.