Human Anatomy (8th Edition) - Standalone book
8th Edition
ISBN: 9780321883322
Author: Frederic H. Martini, Robert B. Tallitsch
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 9, Problem 1RFT
Summary Introduction
Introduction:
Skeletal muscle is a form of striated muscle. It works under voluntary control of the somatic nervous system. The skeletal muscles are connected to the bones through collagen fibers bundle known as tendons.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
Which fiber type would be the most useful in the leg muscles of a long-distance runner? (a) fast glycolytic, (b) slow glycolytic, (c) fast oxidative.
In skeletal muscle, the sarcolemma is directly covered by:
a) epimysium.
b) perimysium.
c) endomysium.
1) Paula is a scientist who is developing a drug called Fremtol that will be used to treat muscle spasms. This drug acts on specific skeletal muscles to (1) block the release of Ca2+ ions from the sarcoplasmic reticulum, (2) inhibit the pivoting ability of the myosin heads of the thick filaments, and (3) block the production of ATP by the mitochondria in skeletal muscles. By using this drug, contraction of certain skeletal muscle fibers is reduced, which keeps those muscles from producing spasms.
In the above scenario, Fremtol’s effect of blocking the pivoting ability of the myosin heads of the thick filaments would have which of the following consequences?
a. decreased release of acetylcholine at the neuromuscular junction
b. inhibition of the power stroke
c. reduced production of myoglobin
d. All of the above
e. None of the above
2) Paula is a scientist who is developing a drug called Fremtol that will be used to treat muscle spasms. This drug acts on specific skeletal muscles to…
Chapter 9 Solutions
Human Anatomy (8th Edition) - Standalone book
Ch. 9 - 1. Active sites on actin become available for...Ch. 9 - Prob. 3RFTCh. 9 - Prob. 4RFTCh. 9 - 4. Another name for a muscle that is a prime mover...Ch. 9 - Prob. 1RFTCh. 9 - Prob. 6RFTCh. 9 - 7. The theory that explains muscle contraction is...Ch. 9 - Prob. 8RFTCh. 9 - Label the illustrations to the right as...Ch. 9 - Prob. 1RC
Ch. 9 - 2. The ability to recover from injuries in older...Ch. 9 - Prob. 3RCCh. 9 - Prob. 4RCCh. 9 - Prob. 5RCCh. 9 - A motor unit from a skeletal muscle contains 1500...Ch. 9 - 7. What is the role of the zone of overlap in...Ch. 9 - Several anatomy students take up weight lifting...Ch. 9 - Prob. 2CT
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- How does a muscle fiber incur an oxygen debt?arrow_forwardIn a general sense, how do skeletal muscles produce movement?arrow_forward2) Paula is a scientist who is developing a drug called Fremtol that will be used to treat muscle spasms. This drug acts on specific skeletal muscles to (1) block the release of Ca2+ ions from the sarcoplasmic reticulum, (2) inhibit the pivoting ability of the myosin heads of the thick filaments, and (3) block the production of ATP by the mitochondria in skeletal muscles. By using this drug, contraction of certain skeletal muscle fibers is reduced, which keeps those muscles from producing spasms. In the above scenario, Fremtol’s effect of blocking the release of Ca2+ ions from the sarcoplasmic reticulum would most directly prevent which the following? a. activation of tropomyosin b. activation of troponin c. activation of actin d. All of the above e. None of the abovearrow_forward
- 3) Paula is a scientist who is developing a drug called Fremtol that will be used to treat muscle spasms. This drug acts on specific skeletal muscles to (1) block the release of Ca2+ ions from the sarcoplasmic reticulum, (2) inhibit the pivoting ability of the myosin heads of the thick filaments, and (3) block the production of ATP by the mitochondria in skeletal muscles. By using this drug, contraction of certain skeletal muscle fibers is reduced, which keeps those muscles from producing spasms. In the above scenario, Fremtol’s effect of blocking muscle mitochondrial ATP production would result in the inability of the muscle to make ATP from ___________. a. creatine phosphate b. anaerobic glycolysis c. aerobic respiration d. All of the above e. None of the abovearrow_forwardThe greater the number of _________ involved in a motor unit, the ________ the degree of fine muscle control. Question 9 options: a) muscle fibers............less b) ligand gated channels………….less c) layers of epimysium.........less d) muscle fibers............greaterarrow_forwardWhich is true for striated muscles? a) may have spontaneous activity b) is not under the control of the will c) many cell nuclei, located below the membrane, in each muscle fiber.arrow_forward
- The events during the leg phase of a muscle fiber twitch begin with................ and end with......... Breakdown of ACh/uptake of ACh ACh binds to receptor/ influx of sodium Muscle fiber AP/cross bridge forms ATP binds to myosin/ thin filaments slidesarrow_forwardWhich of the following statements about smooth muscle is false? (a) Smooth muscle cells are called fibers. (b) Most smooth muscle cells, like cardiac muscle cells, are joined by gap junctions. (c) Smooth muscle cells have a single, centrally located nucleus. (d) Contraction of smooth muscle is stimulated exclusively by involuntary nerves. (e) Smooth muscle tissue found in the wall of hollow organs is arranged in sheets.arrow_forwardMatch the level of skeletal muscle organization given in the key with its description:Key:(a) muscle (b) fascicle (c) fiber (d) myofibril (e) myofilament__(1) rod-shaped organelle; made of sarcomeres__(2) an organ__(3) a bundle of cells__(4) a group of large molecules__(5) a cellarrow_forward
- Muscular endurance is defined as the: O a) ability of a muscle to contract repeatedly over an extended period of time b) amount of force a muscle can produce with a single maximal effort O c) ability to move the joints through a full range of motion O d) amount of time required to contract a muscle completelyarrow_forwardSkeletal muscle has several distinct fiber types. Type I is used primarily for aerobic activity, whereas type II b is specialized for short, intense bursts of activity. How could you distinguish between these types of muscle fiber if you viewed them with an electron microscope?arrow_forwardA muscle fiber is the same thing as a: a) myofibril. b) myocyte. c) myofilament. d) fascicle.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Human Physiology: From Cells to Systems (MindTap ...BiologyISBN:9781285866932Author:Lauralee SherwoodPublisher:Cengage LearningHuman Biology (MindTap Course List)BiologyISBN:9781305112100Author:Cecie Starr, Beverly McMillanPublisher:Cengage Learning
Human Physiology: From Cells to Systems (MindTap ...
Biology
ISBN:9781285866932
Author:Lauralee Sherwood
Publisher:Cengage Learning
Human Biology (MindTap Course List)
Biology
ISBN:9781305112100
Author:Cecie Starr, Beverly McMillan
Publisher:Cengage Learning
GCSE PE - ANTAGONISTIC MUSCLE ACTION - Anatomy and Physiology (Skeletal and Muscular System - 1.5); Author: igpe_complete;https://www.youtube.com/watch?v=6hm_9jQRoO4;License: Standard Youtube License