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it is a part in the heart which reforms the bases of the muscle contamination in the heart.
Eino Rolfson
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How is blood transported throughout the human body?
The blood travels around the human body through blood vestals slowly or fast depending on what your heart beat is like.Blood from heart goes to artery, then arteriole, then to capillary, which goes venule, then to the vein, then the blood goes back to the heart.
The activity of the kidneys is controlled by hormones and by the?
The activity of the kidneys is controlled by hormones which have been released by a gland in the brain and by the composition of the blood.The kidney, better yet, a kidney nephron has three main functions: ultrafiltration, in which contents of the blood are filtered according to their size (Bowman's Capsule); reabsorption, in which needed substances (water, glucose, amino acids, some salts; unneeded: urea, uric acid, some salts) diffuse (by active transport) into the venule end of a capillary bed (renal tubules and, partially, Henle's Loop as well as the collecting duct); osmoregulation, in which ADH (antidiuretic hormone) is released by the pituitary gland in the brain (renal tubules and, partially, Henle's Loop as well as the collecting duct).The kidney has more than one activity, so several things perform the activities.
Trace a drop of blood from the skin of face to the right atrium?
Here we go! [First, the pulmonary circuit.] R atrium; R ventricle; pulmonary artery (L or R); arteriole; capillary adjacent to an alveolus of lung; venule; pulmonary vein [Now the blood returns to the heart for the systemic (body) circuit.] L atrium; L ventricle; aorta; R iliac artery; arteriole; capillary in a toe of the R foot; venule; R femoral vein; vena cava; back to the R atrium
How can you trace a drop of blood from the left anterior tibial vein to the right radial artery?
The left anterior tibial vein drains into the veins leading into the inferior vena cava, which empties in the right atrium. The right atrium pumps into the right ventricle. The right ventricle pumps this deoxygenated blood into the pulmonary trunk which splits into two branches left and right which transport the doexygenated blood on to vasculature in the lungs. This circuit essentially turns around in the alveolar capillaries where gas exchange occurs, oxygenating this blood and turning it from blue to red. This blood drains into a return system, draining this oxygenated blood from capillary to venule to vein, gathering in the right and left pulmonary vein. (vein doesn't always mean blue blood. Vein means that it is returning to the heart and artery means leaving the heart. In the body system this means that arteries are red and veins are blue, but in the pulmonary circuit, it's the opposite with regard to color. Don't rely on blood color to remember this, rely on direction of transport to and from the heart). The blood enters the left atrium through the mitral valve and into the left ventricle which pumps through the aortic valve into the aorta which feeds the systemic circuit. Off of the aorta there are many branches leading to areas of the body such as the head, upper torso, legs, etc. One of these branches, the brachiocephalic trunk, will split into two branches. The one on the thumb side of the forearm is the right radial artery.
What is one example of a substance using facilitated transport and one example of a substance using active transport?
Diffusion is the net passive movement of particles (atoms, ions or molecules) from a region in which they are in higher concentration to regions of lower concentration. It continues until the concentration of substances is uniform throughout. Some major examples of diffusion in biology: • Gas exchange at the alveoli - oxygen from air to blood, carbon dioxide from blood to air. • Gas exchange for photosynthesis - carbon dioxide from air to leaf, oxygen from leaf to air. • Gas exchange for respiration - oxygen from blood to tissue cells, carbon dioxide in opposite direction. • Transfer of transmitter substance - acetylcholine from presynaptic to postsynaptic membrane at a synapse. • Osmosis - diffusion of water through a semipermeable membrane. Facilitated Diffusion This is the movement of specific molecules down a concentration gradient, passing through the membrane via a specific carrier protein. Thus, rather like enzymes, each carrier has its own shape and only allows one molecule (or one group of closely related molecules) to pass through.eg Common molecules entering/leaving cells this way include glucose and amino-acids. Osmosis is a special example of diffusion. It is the diffusion of water through a partially permeable membrane from a more dilute solution to a more concentrated solution - down the water potential gradient. Some major examples of osmosis • Absorption of water by plant roots. • Re-absorption of water by the proximal and distal convoluted tubules of the nephron. • Re-absorption of tissue fluid into the venule ends of the blood capillaries. • Absorption of water by the alimentary canal - stomach, small intestine and the colon. Major examples of Active Transport 1) Re-absorption of glucose, amino acids and salts by the proximal convoluted tubule of the nephron in the kidney . 2)Sodium/potassium pump in cell membranes (especially nerve cells)
What is a venule what is its length?
A venule is a smaller version of a vein.
What is the difference between a vein and venule?
A vein is larger than a venule. It is also closer to the heart and farther from the capillaries than a venule.
What structure within a capillary bed shunts blood from arteriole to venule?
Artery -> Arteriole -> Capillary -> Venule -> Vein
Where does the thoroughfare channel end?
venule
The flow of blood from an arteriole to a venule is called what?
Microcirculation
What does Venule look like?
A venule is a very small blood vessel. It drains a capillary bed and meets up with other venules which drain blood into larger vessels called veins.
What is the difference between arteriole and venule blood flow?
An arteriole transports oxygenated blood from the arteries to the capillary beds and a venule transports de-oxygenated blood from the capillary beds to the veins.
Is a venule is a tiny tube which gathers blood returning from the capillaries?
true
How does blood flow from capillary to venule?
By the process of diffusion.
What is a venule?
a smaller version of a vein.
What is responsible for gaining ECF from blood at the arteriole end and venule end?
Hydrostatic pressure is the force the gains the ECF from blood at the ends of the arteriole and venule. This process depends heavily on gravity for it to work properly.
Why arterioles6 times thicker than the average venule?
The arterioles wall contains smooth muscle and elastic fibers and is six times thicker to handle the higher pressure in the arterioles. The venule is like a giant capillary.
