Human Anatomy (8th Edition)
8th Edition
ISBN: 9780134243818
Author: Elaine N. Marieb, Patricia Brady Wilhelm, Jon B. Mallatt
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Question
Chapter 23, Problem 15RQ
Summary Introduction
To determine:
The false statement about smooth muscles.
Introduction:
Muscles are located in different parts of the body and perform their functions accordingly. They are of mainly three types, namely skeletal muscle, smooth muscles, and cardiac muscles. Cardiac muscles are present in the heart, whereas smooth muscles are located in the hollow internal organs and tracts such as the digestive tract.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Which of the following statements relating to smooth muscle is true?
a. single-unit smooth muscles contract rhythmically due to gap junctions
b. multi-unit smooth muscles are arranged like skeletal muscle motor units
c. visceral smooth muscles exhibit spontaneous action potentials
d. multi-unit smooth muscles exhibit graded contractions in response to neural stimuli
e. all of the above
Skeletal muscle and cardiac muscle are similar in that both types of muscle a. have cells that branch. b. contain intercalated discs. c. are under involuntary control. d. are striated.
Which of the following describes a similarity between cardiac and smooth muscle cells?a. An action potential always precedes contraction.b. The majority of the Ca21 that activates contraction comes from theextracellular fluid.c. Action potentials are generated by slow waves.d. An extensive system of T-tubules is present.e. Ca21 release and contraction strengths are graded
Chapter 23 Solutions
Human Anatomy (8th Edition)
Ch. 23 - Where in the alimentary canal does propulsion...Ch. 23 - Differentiate the abdominal cavity from the...Ch. 23 - Identify all the mesenteries that connect to each...Ch. 23 - Prob. 4CYUCh. 23 - Name the three sublayers of the mucosa. Which...Ch. 23 - Name the tissue layer of the alimentary canal that...Ch. 23 - Contrast smooth muscle to skeletal muscle, noting...Ch. 23 - What type of epithelium forms the mucosa lining...Ch. 23 - Name the three major salivary glands. What...Ch. 23 - Prob. 10CYU
Ch. 23 - How does the epithelial lining change from the...Ch. 23 - Describe the location of the stomach in reference...Ch. 23 - What do chief cells produce? What do parietal...Ch. 23 - Prob. 14CYUCh. 23 - Name all the parts of the large intestine,...Ch. 23 - Name the structures within the villus that receive...Ch. 23 - Name the vessels and ducts that pass through the...Ch. 23 - Trace the path of blood drained from the digestive...Ch. 23 - Prob. 19CYUCh. 23 - Why is it so important to wash your hands after...Ch. 23 - Which embryonic germ layer forms the epithelium of...Ch. 23 - What blood vessel supplies the structures derived...Ch. 23 - Which of the following organs is secondarily...Ch. 23 - Prob. 2RQCh. 23 - For each organ in the left-hand column, select the...Ch. 23 - Match each of the mesenteries in the key with the...Ch. 23 - Prob. 5RQCh. 23 - Prob. 6RQCh. 23 - Which of the following correctly describe the flow...Ch. 23 - The exocrine glands in the pancreas are (a) simple...Ch. 23 - Prob. 9RQCh. 23 - Which one of the following features is shared by...Ch. 23 - Prob. 11RQCh. 23 - Prob. 12RQCh. 23 - Protein digestion begins (a) in the mouth by...Ch. 23 - The calcified connective tissue that attaches the...Ch. 23 - Prob. 15RQCh. 23 - Prob. 16RQCh. 23 - The salivary gland that contains only serous cells...Ch. 23 - Use the key below to indicate the blood vessel...Ch. 23 - Make a simple drawing of the organs of the...Ch. 23 - Name the layers of the wall of the alimentary...Ch. 23 - (a) Write the dental formulas for both the...Ch. 23 - Bianca went on a trip to the Bahamas during spring...Ch. 23 - (a) Make a rough sketch of the Visceral surface of...Ch. 23 - Name four structural features that increase the...Ch. 23 - (a) List the three major vessels of the portal...Ch. 23 - Of the three major salivary glands, which is the...Ch. 23 - Trace the entire duct systems of the liver and...Ch. 23 - Prob. 28RQCh. 23 - Prob. 29RQCh. 23 - Prob. 30RQCh. 23 - Prob. 31RQCh. 23 - This chapter describes schemes that divided the...Ch. 23 - A 21-year-old man with severe appendicitis did not...Ch. 23 - Duncan, an inquisitive 8-year-old, saw his...Ch. 23 - Eva, a middle-aged attorney, complains of a...Ch. 23 - Prob. 5CRCAQCh. 23 - The janitor who cleaned the anatomy lab had a...Ch. 23 - Explain why cancer chemotherapies that stop the...Ch. 23 - From what embryonic layer (ectoderm, mesoderm, or...Ch. 23 - Name the three major salivary glands. What...Ch. 23 - Rebound tenderness in the lower right quadrant of...
Knowledge Booster
Similar questions
- All of the following characteristics apply to skeletal muscle except a. They are striated. b. They are multinucleated. c. They are voluntary. d. They contain intercalated discs. e. They are attached to the skeleton by means of tendons.arrow_forwardWhich of the following statements about skeletal muscle is CORRECT? Select one: a. An increase in Na+ concentration in the cytosol starts muscle filament sliding. b. The muscle is non-striated and involuntary. c. The muscle is involved in shivering thermogenesis. d. The muscle contracts in response to parasympathetic stimulation. e. The muscle contracts in response to hormones.arrow_forwardWhich of the following statements about the connective sheath of skeletal muscle is false? a. the endomysium wraps around every single muscle fiber b. the perimysium wraps around groups of muscle fibers c. the epimysium wraps around the whole muscle organ d. all of the above e. none of the abovearrow_forward
- Compared with skeletal muscle, visceral smooth muscle a. has the same ability to be stretched. b. loses the ability to contract forcefully when stretched. C. maintains about the same tension, even when stretched. d. cannot maintain long, steady contractions. e. can accumulate a substantial oxygen deficitarrow_forwardSkeletal muscle cells are a. large multinucleate cells that arise by growth. b. large multinucleate cells that arise by fusion of smaller cells. C. small cells connected by many gap junctions. d. large cells with a single nucleus.arrow_forwardWhich of the following statements about the microscopic structure of smooth muscle fibers is incorrect? a. smooth muscle cells lack myofibrils, sarcomere, and t-tubules b. smooth muscle cells contain endomysium only c. smooth muscles cells contain caveolae that sequesters calcium ions d. all of the above e. none of the abovearrow_forward
- Which of the following statements about smooth muscle is correct: Select one: O a. Endothelial secretion of NO results in relaxation of blood vessel wall smooth muscle O b. Its activity is not affected by nervous system c. In smooth muscle cells myosin is deactivated by myosin light chain kinase O d. Its contraction is weaker than the contraction of skeletal musclearrow_forwardWhich of the following statements best describes the sliding filament mechanism of muscle contraction? a. Actin and myosin filaments do not shorten, but rather, slide past each other. b. Actin and myosin filaments shorten and slide past each other. c. As they slide past each other, actin filaments shorten, but myosin filaments do not shorten. d. As they slide past each other, myosin filaments shorten, but actin filaments do not shorten.arrow_forwardCardiac muscle cells differ from skeletal muscle cells because: a. They can respond to neurotransmitters.b. They are striated.c. They contain intercalated discs and gap junctions.d. They require calcium for contraction.arrow_forward
- Which of the following statements relating to the developmental aspects of muscles is false? a. All muscle tissue types arise from myoblasts b. Skeletal muscles become amitotic while smooth muscles regenerate throughout life c. Sarcopenia begins by age 30 and is irreversible d. Body strength per unit muscle mass is the same in both sexes e. none of the above Which of the following structures is located in the head region of the thick filament myosin? a. actin binding site b. ATP binding site c. ATPase enzyme d. all of the above e. none of the abovearrow_forwardCalmodulin is found in smooth muscle cells and performs a similar function to troponin in striated muscle fibers. However, calmodulin not only gets activated by Ca2+ but also slows the release of Ca2+ from the sarcoplasmic reticulum. How might this difference relate to the different kinds of contractions smooth muscles do in comparison to striated muscles?arrow_forwardCompared with skeletal muscle, visceral smooth musclea. has the same ability to be stretched.b. loses the ability to contract forcefully when stretched.c. maintains about the same tension, even when stretched.d. cannot maintain long, steady contractions.e. can accumulate a substantial oxygen deficit.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Human Biology (MindTap Course List)BiologyISBN:9781305112100Author:Cecie Starr, Beverly McMillanPublisher:Cengage Learning
Human Biology (MindTap Course List)
Biology
ISBN:9781305112100
Author:Cecie Starr, Beverly McMillan
Publisher:Cengage Learning