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If a drug caused a sudden release of large amounts of calcium in skeletal muscle from which structure would the calcium come?
Wiki User
∙ 11y ago
sarcoplasmic reticulum
Wiki User
∙ 11y ago
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A function of the skeletal system is to act as a storage area for calcium true or false?
True, blood calcium is very tightly regulated there are two types of bone cells that will either take up excess calcium if blood levels get too high or break down bone to release calcium if blood levels get to low. Both of these bone cells are controlled by the endocrine system in the body.
Is the rough endoplasmic reticulum responsible for calcium storage and release?
Yes. "Smooth ER also is involved in the uptake and release of calcium to mediate some types of cellular activity. In skeletal muscle cells, for example, the release of calcium from the smooth ER triggers muscle contraction." Source: http://encarta.msn.com/encyclopedia_761587444/Endoplasmic_Reticulum.html
What is the function of the compact bone?
It makes the bones rocklike so that they can support the body and take care of organs. It makes up the compact outside of skeletal bones. Hope this helped!(:Functions are to support the whole body, protect organs, provide levers for movement, and store and release chemical elements, mainly calcium
Does the skeleton store calcium and phosphorus in the bones and then release them into the blood?
Only if the bone is being broken down by cells known as osteoclasts. It is not a good sign if high levels of calcium and phosphate are being released into the blood normally as it shows bone is being broken down. However, through the action of the parathyroid hormone, the bones balance the levels of these mineral salts in the blood via this process. Yes. Calcium is one of the major minerals in the skeletal system. Certain parts of your muscle cells called sarcoplasmic reticulum also store calcium for the muscle to use. Calcium is either stored or released from bone in response to hormone messengers, particularly calcitonin & parathyroid hormone.
What hormone stimulates the release of calcium?
the parathyroid hormone (PTH) is released by the parathyroid gland (located behind the thyroid gland). A decrease in blood calcium causes the parathyroid gland to secrete PTH which causes the bones to release more calcium to raise blood calcium and also causes the kidneys to decrease the amount of calcium lost in urine
During contraction of the heart muscle cells?
some calcium enters the cell from the extracellular space and triggers the release of larger amounts of calcium from intracellular stores
What is the significance of the skeletal muscle fiber triad relationship?
The T tubules conduct electrical impulses that stimulate calcium release from the sarcoplasmic reticulum.
What organelle releases calcium ions when an electrochemical message moves down a T-tubule?
Terminal cisterns of the sarcoplasmic reticulum through the Rhynodine receptors release calcium into the skeletal muscle cell when stimulated by an action potential.
A function of the skeletal system is to act as a storage area for calcium true or false?
True, blood calcium is very tightly regulated there are two types of bone cells that will either take up excess calcium if blood levels get too high or break down bone to release calcium if blood levels get to low. Both of these bone cells are controlled by the endocrine system in the body.
What function do calcium ions perform during skeletal muscle contractions?
During skeletal muscle contraction calcium ions expose myosin binding sites on to the actin. When a nerve sends a signal to a muscle to do some "action" the release of acetylcholine at the neuromuscular junction triggers calcium to be released into the cytoplasm. At rest, the cell has a low concentration of calcium. When the calcium concentration rises, calcium diffuses over to the muscle protein fibers and causes a conformational change. Calcium binds to the troponin and causes it to rotate slightly which forms a crossbridge that drags along the actin fiber and shortens it thus creating muscle fiber contraction.
Does a synaptic vesicle release calcium or sodium?
Calcium ion
Is the rough endoplasmic reticulum responsible for calcium storage and release?
Yes. "Smooth ER also is involved in the uptake and release of calcium to mediate some types of cellular activity. In skeletal muscle cells, for example, the release of calcium from the smooth ER triggers muscle contraction." Source: http://encarta.msn.com/encyclopedia_761587444/Endoplasmic_Reticulum.html
How can you say bones are dynamic structure?
Bones are dynamic in the sense that they are constantly being broken down and built back up. When blood calcium levels are low, cells called osteoclasts break down bone matrix and release the calcium into the blood. When blood calcium levels are high, cells called osteoblasts take calcium out of the blood and use it the built bone matrix.
What hormone has a decrease in plasma calcium is the stimulus for its release?
The Parathyroid hormone has a decrease in plasma calcium. It uses a Pentagastrin as stimulation for its release.
How do bone cells help maintain homeostasis?
The skeletal system contribute to homoeostasis in various ways. It produces new red blood cells to replace the old ones and also uses the osteoblasts and osteoclasts cells to maintain balance in the body.
What is the name of the solid formed when calcium carbonate decomposes?
Thermal decomposition of calcium carbonate release calcium oxide (CaO).
What happens when blood calcium is low?
When the blood calcium is low, the bones in the body release calcium to supplement it. This is a condition which is known as hypocalcemia.
