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Smooth muscle contractions occur without the regular rearrangement of sarcomeres, which are the structural units found in skeletal and cardiac muscle. Instead of organized sarcomeres, smooth muscle fibers have a more dispersed arrangement of actin and myosin filaments, allowing for a more sustained and rhythmic contraction. This unique structure enables smooth muscle to maintain tension over extended periods and adapt to various physiological demands.
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What are smooth muscle contractions?
Spindle shaped by faireena singh
What property of smooth and cardiac muscles allows them to initiate their own contractions?
The property of automaticity allows smooth and cardiac muscles to spontaneously initiate their own contractions without needing an external stimulus. This is due to the presence of pacemaker cells in these muscle tissues that can generate action potentials independently.
What conditions cause contractions of arteriole smooth muscle?
Asthma causes contraction of the bronchial smooth muscle.
What type of muscles line the bladder to allow for contractions?
smooth muscle
What are minerals that are responsible for smooth contractions and consistent rhythm of the heart?
potassiumPotassium
What type ofr tissue is responsible for contractions that account for movement of organs of the entire body?
Smooth muscle tissue is responsible for contractions that account for the movement of organs in the entire body. This type of muscle tissue is involuntary, meaning it contracts without conscious control, and is found in the walls of hollow organs like the stomach, intestines, and blood vessels. Smooth muscle contractions help with processes like digestion, circulation, and breathing.
What term describes a series a wavelike contractions of the smooth muscles in a single direction?
The wavelike contractions of the smooth muscle in the gastrointestinal system are called peristalsis. The purpose of peristalsis is to push boluses of food along the gastrointestinal tract. This is achieved by the waves of contractions in the smooth muscle followed by relaxation of the muscles, pushing the bolus (ball of food) a bit further along the digestive tract with each contraction. These contractions move food or chyme through the esophagus, and intestines. The same contractions also move urine down the ureter to the bladder.
Food moves along the digestive tract as the result of contractions of what?
smooth muscles.
Condition which smooth muscles contractions reduce the size of air passageways in the lungs?
Asthma
What process involves the contractions of smooth muscle that propel urine through the ureter?
peristalsis
What are minerals responsible for smooth contractions and consistent rhythm of the heart?
potassium calcium and sodium
The process of swallowing uses muscular contractions of muscle tissue?
Smooth for a+ kids. This means you too dom!
