Muscle ShapesPlease label the following muscle types. In the numbers below the photo, list a muscle who is built in thatparticular muscular shape.Circular 2.convergentSumulAipenhate4Parallel7Cnipenate3Bipennate5.1. m Outh2. pectovalis major6.3.7.4.Defining Muscle TermsDefine the following terms in your own words. ALIsometric:Isotonic:Prime moverAntagonist:

Hi, Thanks For Your Question. Answer : Mouth (Orbicularis Oculi) (Circular) Pectoralis Major…

Please label the following muscle types. In the numbers below the photo, list a muscle who is built in that particular muscular shape. CAYCulay 2.convergent 7.cnipenare 1. m Outh 2. p ectoralis major 5. 6. 3. 7. 4. Defining Muscle Terms Define the following terms in your own words. Isometric: Isotonic: Prime mover Antagonist:

Please label the following muscle types. In the numbers below the photo, list a muscle who is built in that particular muscular shape. CAYCulay 2.convergent 7.cnipenare 1. m Outh 2. p ectoralis major 5. 6. 3. 7. 4. Defining Muscle Terms Define the following terms in your own words. Isometric: Isotonic: Prime mover Antagonist:

Human Physiology: From Cells to Systems (MindTap Course List)

9th Edition

ISBN:9781285866932

Author:Lauralee Sherwood

Publisher:Lauralee Sherwood

Chapter8: Muscle Physiology

Section: Chapter Questions

Problem 8UC

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Similar questions

In the diagram below, label the fine structure of a muscle, down to one of its myofibrils. Identify the basic unit of contraction in a myofibril.
Watch this video (http://openstaxcollege.org/l/micromacro) to learn more about macro- and microstructures of skeletal muscles. (a) What are the names of the junction points between sarcomeres? (b) What are the names of the subunits within the myofibrils that run the length of skeletal muscle fibers? (c) What is the â€œdouble strand of pearlsâ€� described in the video? (d) What gives a skeletal muscle fiber its striated appearance?
Which arrangement best describes a bipennate muscle? The muscle fibers feed in on an angle to a long tendon from both sides. The muscle fibers feed in on an angle to a long tendon horn all directions. The muscle fibers feed in on an angle to a long tendon horn one side. The muscle fibers on one side of a tendon feed into it at a certain angle and muscle fibers on the other side of the tendon feed into it at the opposite angle.
A muscle that has a pattern of fascicles running along the long axis of the muscle has which of the following fascicle arrangements? circular pennate parallel rectus
The location of a muscles insertion and origin can determine ________. action the force of contraction muscle name the load a muscle can carry
Figure 38.37 Which of the following statements about muscle contraction is true? The power stroke occurs when ATP is hydrolyzed to ADP and phosphate. The power stroke occurs when ADP and phosphate dissociate from the myosin head. The power stroke occurs when ADP and phosphate dissociate from the actin active site. The power stroke occurs when Ca2+ binds the calcium head.
After death, a person no longer makes ATP, so calcium stored in the sarcoplasmic reticulum diffuses down its concentration gradient into the muscle cytoplasm. This result is rigor mortis----an unbreakable state of muscle contraction that stiffens the body for a few days until muscles begin to decay. Explain why this contraction occurs.
What is the function of the sarcoplasmic reticulum in muscle cell contraction?
The release of calcium ions initiates muscle contractions. Watch this video (http://openstaxcollege.org/l/calciumrole) to learn more about the role of calcium. (a) What are â€œT-tubulesâ€� and what is their role? (b) Please also describe how actin-binding sites are made available for cross-bridging with myosin heads during contraction.
Muscle contraction results from interactions between thin filaments, composed mainly of the protein________ , and thick filaments, composed mainly of the protein______. The “heads” of the thick filament protein grab on to the thin filament protein and flex. The energy of_______ is used to extend the head, which stores that energy to power the flexing movement of the head, pulling the thin filament past the thick filament.
Indicate which of the following are true. Chronically shortened muscles will lose sarcomeres in series in order to maintain ideal amounts of myofilament overlap. Contractile force is proportional to the length of a muscle. Muscle organ contraction is all or nothing. Muscle cells are surrounded by an endomysium. Actin is the thick filament and Z-lines are where the cross-bridges zig-zag to adjacent actin filaments. Muscles with fewer motor units are weaker, i.e., capable of less force. A nerve impulse, calcium, and ATP are necessary for muscle contraction. Tendons attach bones to bones and help to limit the range of motion at joints. Muscle tissue is very dynamic and will respond to chronic stress by becoming stronger (making more myofilaments), chronic contraction by becoming shorter (losing sarcomeres in series), and stretching by becoming longer (adding sarcomeres in series). Myofilaments are actually long strands of proteins.
How is muscle contraction stopped? Which of the following is/are correct? A) The brain stops sending the nerve impulse that commands the muscle to contract, interrupting communication at the neuromuscular junction B) Acetylcholineesterase (AChE) is released into the synaptic cleft to destroy any remaining Acetylcholine C) No mechanism is necessary. When the antagonist begins to contract, it forces relaxation and stretch of the agonist muscle. D) Relaxation occurs as the myosin heads are "snapped" off of the thick filaments. This interrupts the crossbridge and allows for muscles to stretch E) Relaxation only occurs if the brain sends a "stop" signal to the muscle