Which of the following is not characteristic of smooth muscle
Which is not characteristic of smooth muscle?
Smooth muscles are found in limbs is not the characteristic of smooth muscles. Explanation: Smooth muscles are found in limbs is not the characteristic of smooth muscles.
What are the characteristics of smooth muscle?
Four characteristics define smooth muscle tissue cells: they are involuntarily controlled, not striated, not branched, and singly nucleated. The unconscious regions of the brain control visceral muscle through the autonomic and enteric nervous systems.
What features are not present in smooth muscle quizlet?
Smooth muscle cells lack myofibrils and sarcomeres. Smooth muscle cells possess striations. Smooth muscle cells contain many nuclei.
Which of the following is a characteristic of a smooth muscle cell quizlet?
Smooth muscle cells contain actin and myosin. Muscle contraction does not depend on calcium ions. It has striations and sarcomeres. Smooth muscle cells contain actin and myosin.
What are the characteristics of smooth muscle Class 9?
Spindle-shaped, unbranched, unstriated, uninucleate and involuntary.
What are smooth muscles?
At a cellular level, smooth muscle can be described as an involuntary, non-striated muscle. Smooth muscle consists of thick and thin filaments that are not arranged into sarcomeres giving it a non-striated pattern. … Smooth muscle can tense and relax but has greater elastic properties than striated muscle.
Which of the following is a characteristic of smooth muscle group of answer choices?
Smooth muscle cells are spindle shaped, have a single, centrally located nucleus, and lack striations. They are called involuntary muscles. Cardiac muscle has branching fibers, one nucleus per cell, striations, and intercalated disks. Its contraction is not under voluntary control.
What characteristic is seen in cardiac muscle but not in smooth muscle?
Muscle Types: Cardiac and skeletal muscle are both striated in appearance, while smooth muscle is not. Both cardiac and smooth muscle are involuntary while skeletal muscle is voluntary.
Which of the following is a function of smooth muscle tissue?
The primary function of smooth muscle is contraction. Smooth muscle consists of two types: single-unit and multi-unit. Single-unit smooth muscle consists of multiple cells connected through connexins that can become stimulated in a synchronous pattern from only one synaptic input.
Which of the following is true about smooth muscle?
Which of the following is true about smooth muscle? Smooth muscle has well-developed T tubules at the site of invagination. Smooth muscle, in contrast to skeletal muscle, cannot synthesize or secrete any connective tissue elements. Smooth muscle cannot stretch as much as skeletal muscle.
What are the types of smooth muscles?
Types of Smooth muscle
Smooth muscles are of two types. They are: Single-unit (visceral) smooth muscle: All the cells function collectively and simultaneously as a single unit (unitary). Multiunit smooth muscle: It is a type of muscle in which all the cells cannot function collectively and work independently.
How does smooth muscle differ from skeletal muscle quizlet?
How does smooth muscle differ from skeletal muscle? Smooth muscle has fewer sarcoplasmic reticulum. Smooth muscle lacks T tubules. Smooth muscle thick filaments have myosin heads along the entire length.
Is peristalsis a characteristic of smooth muscle?
Peristalsis is characteristic of smooth muscle. Peristalsis – the wavelike muscular contraction of the intestine or other tubular structure that propel the contents onward by alternate contraction and relaxation. A contraction in which the muscle does not shorten but its tension increases is called isometric.
Which of the following properties does not describe muscle tissue?
The correct answer is A) secretion. Muscle tissue has all of the following properties except secretion.
Where is smooth muscle found?
Smooth muscle fibers are located in walls of hollow visceral organs (such as the liver, pancreas, and intestines), except the heart, appear spindle-shaped, and are also under involuntary control.
Are intestines smooth muscle?
Smooth muscle (so-named because the cells do not have striations) is present in the walls of hollow organs like the urinary bladder, uterus, stomach, intestines, and in the walls of passageways, such as the arteries and veins of the circulatory system, and the tracts of the respiratory, urinary, and reproductive …
Does the esophagus have smooth muscle?
The muscles in the upper portion of the esophagus are under voluntary control. The remaining portion consists of smooth muscle like the rest of the digestive tract and is not under voluntary control. To keep food from coming back up from the stomach, the esophagus has two circular bands of involuntary muscle.
Do blood vessels have smooth muscle?
Blood vessels contain only smooth muscle cells. These muscle cells reside within the tunica media along with elastic fibers and connective tissue.
Is heart a smooth muscle?
Cardiac muscle (also called heart muscle or myocardium) is one of three types of vertebrate muscle tissue, with the other two being skeletal muscle and smooth muscle. It is involuntary, striated muscle that constitutes the main tissue of the wall of the heart.
What other structures contain smooth muscle tissue?
Smooth muscle is found in the walls of hollow organs, including the stomach, intestines, bladder and uterus; in the walls of passageways, such as blood, and lymph vessels, and in the tracts of the respiratory, urinary, and reproductive systems.
What type of smooth muscle is in the wall of the digestive tract?
Termed unitary smooth muscle or visceral muscle, this type of smooth muscle is the most common observed in the human body, forming the walls of hollow organs. Single-unit smooth muscle produces slow, steady contractions that allow substances, such as food in the digestive tract, to move through the body.