What is smooth muscle, Biology

Assignment Help:

What is Smooth Muscle?

Smooth muscle provides the contractile force for movement in internal organs under control of the involuntary or autonomic nervous system. Smooth muscle is responsible for movement of the bolus through the digestive tract, the flow of blood through blood vessels, and the emptying of urine from the urinary bladder, except for the external sphincter.

Smooth muscle is composed of long spindle-shaped cells, each with a single nucleus. Smooth muscle tissue is usually arranged in sheets, with the cells in electrical contact with one another through structures called gap junctions. Gap junctions are involved in propagating an action potential generated in the membrane of one smooth muscle cell to all the other muscle cells in the sheet of tissue. The extent of contraction depends upon how much the cell is depolarized.

 


Related Discussions:- What is smooth muscle

Give an introduction to intensive care, Give an introduction to intensive c...

Give an introduction to intensive care ? Intensive Care Medicine has its origins from the polio epidemic of 1952 in Copenhagen. Patients who suffered respiratory paralysis were

Class holothuroidea, Class Holothuroidea Body cucumber-such as; no ar...

Class Holothuroidea Body cucumber-such as; no arms; no spines; no pedicellariae; ossicles minute and embedded in muscular wall; anus present; tube feet along with suckers; am

Explain in brief about the diseases sleep paralysis, Explain in brief about...

Explain in brief about the diseases Sleep paralysis This is an episode of paralysis in the transition between wakefulness and sleep. The period of paralysis is usually brief bu

What is the function of the skin in humans, Q What is the function of the s...

Q What is the function of the skin in humans? The skin is the external covering of the body. In humans its major functions are protection and perception of information from the

Neuropsychological screening of adults, Neuropsychological screening of adu...

Neuropsychological screening of adults Normally, a neuropsychological examination explores in depth an individual's performance in a wide range of functional domains. There are

Define phospholipids, a) Lipoproteins are large molecular compounds that a...

a) Lipoproteins are large molecular compounds that are essential to the transport of cholesterol and triglycerides (TGs) within the blood. They contain a lipid core composed of TG

Define some major source of sodium and chloride, Define some major source o...

Define some major source of sodium and chloride? The major source of sodium and chloride is common salt added to our food in the form of sodium chloride. Naturally occurring so

Differance between rescue-capacity-building strategy, QUESTIONS: Write ...

QUESTIONS: Write an analysis of the Chapter Twelve, the concluding chapter in ROLL AWAY THE STONE. It will be worth UP TO 50 points if you do it well. Submit it through the "Ex

Difference between aqueous humour and vitreous humour, Difference between a...

Difference between aqueous humour and vitreous humour - Aquou s Humour Vitrou s humour 1. Occurs in aquous chamber   2. Wat

What are the functions of the osseous tissue, What are the functions of the...

What are the functions of the osseous tissue? The major functions of the osseous tissue are: to give structural rigidity to the body and to delineate the spatial positioning of

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd