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Circulatory System
Circulatory System is the category for questions about the human circulatory system, including questions about the human heart, arteries, and veins.
2,116 Questions
Are the veins the strongest and thickest of the blood vessels?
The veins are neither strong nor thick of the blood vessels. On the contrary the veins are thin and thin walled. The arteries are strong and thick. They have to bear the pressure of the blood that comes from the heart.
Hemoglobin is a protein that carries oxygen around your body. What is hemoglobin made from?
Amino acids
What are the thickest walled vessels?
The thickest walled vessels are arteries, as they have to endure a more forceful power, as the heart, pumps the blood with great force around the body.
Where can you get information on a 1907 Ranger single shot 22 rifle?
Search the internet and see if there are any collector sites for Ranger
Id like to know what kind the ac system a 92 mercury grand marquis has is it a r 12 or r 134a?
92 was originally R12. But it can easily be converted to 134A.
Does the heart secrete any hormones?
NO!!
Natriuretic peptides
A-type Natriuretic peptide (ANP) (from stretched atria)
B - type Natriuretic peptide (BNP) (from ventricles)
Both lower blood pressure.
An ant has a dorsal aorta that acts as a heart how many beats per minute does it beat?
because a mouse have an average heart rate of 500 beats per minute (bpm), the smaller the animal (or insect) the faster the heart rate so multiply the ant's weight by 107 from the mouse's weight (based on dorman's theory equation on heart rates for animals) the average heart rate would equal to an average between 750-1000 bpm.
How does a plant in a sealed glass container manage its gaseous wastes?
wastes are stored in vacuoles that separate wastes from the rest of the cell content
What does unremarkable mean in an echocardiogram?
In the context of an echocardiogram, "unremarkable" means that there are no significant abnormalities or findings that stand out as concerning. It indicates that the heart appears normal based on the imaging results.
You scan the body.
Why does heart beat fast when you feel in love?
When you are "in love", your brain is releasing a cocktail of hormones that make you feel this way. Some of these hormones have effects other than to make you feel all lovey-dovey, and result in physiological changes such as increased heart rate. I'm fairly sure the specific hormone that causes increased blood pressure is adrenalin but I'm not 100% certain off the top of my head
Which chamber of the human heart is the largest?
All blood returns to the heart's right auricle or atrium from the vena cava. All blood returns to the heart's right auricle or atrium from the vena cava.
What is throbbing at the wrist or neck caused by the beating of the heart?
It is commonly known as a pulse.
What is diagnosis of coronary artery disease?
The coronary arteries bring nutrients and oxygen to the heart. They actually are so important that they take blood to the muscles of the heart before the rest of the body. A person with a disease of these arteries has less oxygen going to the heart muscles and an increased risk of heart damage or a heart attack.
What are the major factors that promote the flow of venous blood?
Factors are, skeletal muscle contraction, breathing movements and vasoconstriction of veins.[venoconstriction].
How can you compare a circulatory system with a train system?
The train tracks would be like the blood vessels with An actual train being like the fluid in the blood. each train car of a train would represent a different cell or chemicals examples would be like red blood cells would have multiple train cars for them. Inside there would be O2 , if it were on a artery "track", or CO2, if they were on a vein "track". Capillaries represent stations which exchanges O2 and CO2. The heart represents a hub of train tracks which lead the different "Trains" to where they need to go.
What is the surgical widening of a constricted heart valve called?
An angioplasty is the widening of a narrowed blood vessel. A stent is a tube inserted to prevent constriction.
What are the parts of the circulatory system?
The three parts of the circulatory system are:
1. The heart - beats 60 to 100 times per minute
2. The blood vessels - about 60 000 miles / 96561 km of vessels, including the arteries, veins, and capillaries. Arterioles and venules are small arteries and veins, respectively.
3. The blood - average of 6 litres / 12.7 pints
Parts of the heart include the Septum, right and left atria (singular "atrium), and right and left ventricles. Valves in the heart include the tricuspid Valve, bicuspid Valve, Aortic Semilunar Valve and Pulmonary Semilunar Valve. Major blood vessels include the Inferior Vena Cava, Superior Vena Cava, Pulmonary Artery, Pulmonary Veins, Coronary Artery, and Aorta.
The heart is the center or the main source of the circulatory system. It pumps blood throughout a network of blood vessels. An artery is a blood vessel that carries blood away from the heart. Capillaries are very thin vessels that gases, nutrients, and wastes pass to body cells. A vein is a blood vessel that carries blood to the heart.
The body's blood vessels can be subdivided functionally into the systemic system and the pulmonary system.
The circulatory system has the work of transporting oxygen, water and nutrients to cells and carrying away wastes from those cells.
The 3 parts of the circulatory system are the heart, the blood vessels and the blood. The heart is the pump that circulates the blood throughout the body. The blood vessels are the arteries, veins, and capillaries that the blood travels through. The blood supplies our cells with oxygen, nutrients, and takes away waste.
Describe what is meant by physiological homeostasis and using a clear example explain?
Physiological homeostasis is the body's ability to maintain stable internal conditions despite external fluctuations. An example is body temperature regulation, where the body adjusts mechanisms like sweating or shivering to keep its temperature around 98.6 degrees Fahrenheit. This process ensures that the body functions optimally within a narrow range of conditions.
What tissue forms a loose fitting sack around the heart?
The tissue forming a loosely fitting "sack" around the heart is known as the pericardium. The musculature of the heart itself, consisting of "cardiac" muscle fibers, is, in general, referred to as the myocardium.
What is bibasal pneumonia heart diaphragm and bony thorax unremarkable?
Bibasal pneumonia means there is pneumonia in the lower lobes of both lungs. The heart and diaphragm and the boney thorax show no signs of problems.
How does oxygen levels change throughout the circulatory system?
Your oxygen level does not decline uniformly across the circulatory system. It drops suddenly at the proximal end of the capillary or on the way to distal end. Till then and after that it is well maintained.
