Biology: The Dynamic Science (MindTap Course List)
4th Edition
ISBN: 9781305389892
Author: Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher: Cengage Learning
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Chapter 43, Problem 10TYK
Summary Introduction
Introduction:
The movement in a joint is caused mainly due to the agonist movement of the muscle. The agonist movement is the major force behind the contraction of the muscles and thus completing the movement.
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Which of the following statements about movement and locomotion isfalse?a. Terrestrial animals and flying animals expend energy to provide lift.b. Swimming animals expend energy to provide thrust but not lift.c. Flexors and extensors are examples of muscles called agonists.d. Flexors cause bending at a joint.e. Extensors cause straightening of a limb.
Whenever the position of a joint is stabilized at a certain attitude, the nervous system produces this by :-
a- increasing the α-motor neuron discharge to all muscles attached to the jointb- increasing the γ-motor neuron discharge to all muscles attached to the jointc- increasing γ-motor neuron discharge to postural musclesd- co-activation of α and γ-motor neurons innervating the involved muscles
Which of the following statements accurately describe(s) the action?a. Making a fist is flexing the fingers.b. Standing on tiptoes is dorsiflexion.c. Pitching a baseball is circumduction.d. Pointing with your arm straight in front of you is extending the arm.e. Squatting involves knee flexion.
Chapter 43 Solutions
Biology: The Dynamic Science (MindTap Course List)
Ch. 43.1 - Prob. 1SBCh. 43.1 - Prob. 2SBCh. 43.1 - Prob. 3SBCh. 43.2 - Prob. 1SBCh. 43.2 - Prob. 2SBCh. 43.3 - Prob. 1SBCh. 43.3 - Prob. 2SBCh. 43 - Prob. 1TYKCh. 43 - Prob. 2TYKCh. 43 - Prob. 3TYK
Ch. 43 - Prob. 4TYKCh. 43 - Prob. 5TYKCh. 43 - Prob. 6TYKCh. 43 - Which of the following is not an example of a...Ch. 43 - Endoskeletons: a. protect internal organs and...Ch. 43 - Prob. 9TYKCh. 43 - Prob. 10TYKCh. 43 - Prob. 11TYKCh. 43 - Prob. 12TYKCh. 43 - Prob. 13TYKCh. 43 - Prob. 14TYKCh. 43 - Prob. 15TYKCh. 43 - Prob. 1ITDCh. 43 - Prob. 2ITDCh. 43 - Prob. 3ITDCh. 43 - Prob. 4ITD
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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
- 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_forwardWhich of the following statements is (are) true about lever systems?a. The effort is the origin of the muscle.b. The fulcrum is a joint.c. The resistance is between the effort and the fulcrum in a third-class lever.d. First-class levers are the most common in the human body.e. The quadriceps muscles use a third-class lever to extend the knee.arrow_forwardWhich of the following is not a role of the muscular system inhomeostasis in the body?a. produce movementb. protect body partsc. produce heatd. store calciumarrow_forward
- The _____ of the muscle attaches to the bone that is stationary during movement.a. originb. diaphysisc. insertiond. None of these are correct.arrow_forwardWhich of the following is a true statement regarding gliding movements? a.Gliding movements occur at the intercarpal and intertarsal joints. b.Gliding movements allow flexibility of the upper limbs. c.An example of a gliding movement is nodding one's head. d.Gliding movements are multiaxial.arrow_forwardThe muscle system is responsible for a. producing red blood cells. b. providing a framework. c. moving the body. d. conducting impulses.arrow_forward
- Which of the following accurately state(s) the action of a muscle?a. The orbicularis oris closes the eye.b. The deltoid abducts the arm.c. The hamstring muscles extend the knee.d. The biceps brachii flexes the elbow.e. The triceps brachii extends the elbow.arrow_forwardTo make a muscle contract more strongly,the nervous system can activate more motorunits. This process is calleda. recruitment.b. summation.c. incomplete tetanus.d. twitch.e. concentric contractionarrow_forwardElbow extension can be described as O a rotational movement of the forearm that results in the palm facing posteriorly. O a bending movement that decreases the angle between the anterior surfaces of the brachial and antebrachial regions. O a rotational movement of the forearm that results in the palm facing anteriorly. O a straightening movement that increases the angle between the anterior surfaces of the brachial and antebrachial regions.arrow_forward
- Movement of a limb in two directions requires a pair of muscles becausea. a single muscle can only pull and not push.b. a single muscle can only push and not pull.c. moving a limb requires more force than one muscle can generate.d. None of the above.arrow_forwardThe sternocleidomastoid muscle inserts at _____ and _____; its main action is to _____ and _____. A. clavicle and sternum; flexion of arm and rotate arm B. temporal and occipital bone; flexion of neck forward and rotate head C. zygomatic and maxilla, close jaw D. clavicle and scapula; abduction of arm The biceps brachii muscle inserts at ______; its main action is _____ and _____. A. distal phalanges of fingers; extension of fingers B. olecranon of ulna; extension of forearm C. radial tuberosity; flexion of elbow and supination of forearm D. palmar aponeurosis; tenses skin of palm The rectus femoris muscle inserts at _____ and _____; its main actions are _____ and _____. A. sacrum and coccyx; extends and rotates thigh B. greater trochanter and linea aspera; extends and stabilizes knee C. condyle of tibia and condyle of femur; extends thigh and flexes knee D. tibial tuberosity and…arrow_forwardAn isometric exercise is one in which the joint angle does not change during the application of muscle force. For instance, you can join your hands together, pushing down with one hand and pushing up with the other. In each arm, the muscles that provide the force are connected to the bones of the arm by tendons. If you increase the forces but keep the angles the same, the muscles will still contract. Explain how this is possible.arrow_forward
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