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What binds calcium ions in a smooth muscle causing contraction?
Wiki User
∙ 13y ago
Contractions are initiated by the calcium-activated phosphorylation of myosin rather than calcium binding to troponin.
Wiki User
∙ 13y ago
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The mechanism of contraction in smooth muscle is different from skeletal muscle in that?
The site of calcium regulation differs
Where does calcium calmodulin system of contraction regulation is found?
Smooth muscle only.
What is The calcium calmodulin system of contraction regulation found in?
smooth muscle only
Does calcium has any role in vasoconstriction?
Yes it does, as a matter of fact calcium plays a huge role in muscle contraction, as so in the smooth vascular muscle.
What does calcium bind to in smooth muscle contraction?
Calcium binds to the messenger protein Calmodulin. The calcium-calmodulin complex then activates myosin light chain kinase (MLCK), which phosphorylates myosin to allow it to bind to actin - producing contraction.
What is in the sarcoplasmic reticulum in muscle?
The sarcoplasmic reticulum is a special type of smooth endoplasmic reticulum. It releases calcium ions during muscle contraction and absorbs them during relaxation.
What is prostaglantin?
Prostaglandins are chemicals produced in prostate gland in males .they have two different function, causing smooth muscle contraction in males genitalia and uterine contraction in females .
What of the muscle tissue can sustain longer contraction?
smooth muscle
What conditions cause contractions of arteriole smooth muscle?
Asthma causes contraction of the bronchial smooth muscle.
What is the process called which involves the contraction of smooth muscle in the artery wall reducing the diameter of the lumen?
Vasoconstriction is normal contraction of smooth muscle in the artery wall.
Why is the endothelium smooth?
Because it is an involuntaru muscle contraction
What does noradrenaline do?
It can cause vascular smooth muscle contraction
