At what intensity should stretching exercises be completed? O a. Just above pain threshold b. Just above threshold for relaxation of the muscle O c. Just past full range of motion O d. Just below pain threshbld

Q: What does it mean when the PT says a patient's legs scissor when he ambulates? A. The patient is…

A: Introduction:-  Scissor gait is due to the flexion of the hip. It is caused in cerebral palsy. It is…

Q: Which phase has the goals to ensure proper motion and movement? O Acute inflamation O Mobility…

A: Injuries are common among individuals who play sports extensively, or even as a profession.…

Q: Why might multiple, small motor units be advantageous over a single large motor unit?   A. They…

A: Motor units participate in regulation of movement of muscle fibers.

Q: Muscles may be named using?  a. speed b. age c. action d. myofilament type

A: Muscle is a soft tissue present in human beings and animals. Muscle cells are composed up of protein…

Q: Observing an EMG signal at different grip strengths shows that ____ motor units are firing at ____…

A: EMG is electromyography that indicates the study of muscle electrical signaling.

Q: Describe movements of the head and give the musclesresponsible for each movement.

A: Axial muscles are responsible for supporting and positioning the axial skeleton in the body. Axial…

Q: The defect of myopia can be corrected by using:(a) Concave lens(b) Convex lens(c) Either concave or…

A: Myopia is a common defect that is found in the eyes of people. In this defect, the eyeball slightly…

Q: The crista ampullaris is sensitive to :-a- sound vibrationsb- force of gravityc- linear…

A: Crista ampullaris is present in the inner ear. It is present in the ampulla of the semicircular…

Q: In flexor withdrawal reflexes contraction of flexor muscles is associated with reciprocal…

A: Withdrawal reflex is a postsynaptic occurring in response to a noxious stimuli.  Characterised by…

Q: 4) How are the muscle spindles stretched during the patellar reflex? a) Striking the tendon with a…

A: The muscular system in the body is made up of muscle fibres which help in muscle contraction. they…

Q: Which phase has the goals to control pain and swelling? A:Acute inflamation B:Mobility restoration…

A: Trauma or injury occurring to a person is generally unavoidable. The rehabilitation process after an…

Q: In general, fast-twitch fibers generate less power than slow-twitch fibers. A. True B. False

A: People have two general types of skeletal muscle fibers: slow-twitch (type I) and fast-twitch (type…

Q: Which muscle contracts in the tension reflex? a. all muscles contract at the same time in this…

A: Reflex is a sudden, involuntary movement in response to a stimulus. The stimulus can be anything…

Q: Why is it difficult to watch your own eyes move when looking in the mirror? a. The eye movements are…

A: Saccades are sudden, ballistic eye movements that alter the point of fixation suddenly. They vary in…

Q: own about internal costal muscles in detail

A: Internal costal muscles are the group of skeletal muscles located between ribs. These inter costal…

Q: An experimental drug blocks the body’s muscle spindles from detecting stretch. Predict the effects…

A: Muscle spindles are defined as the stretch receptors within a muscle's body that sense differences…

Q: Choose the best for the below question ? The biceps and triceps are considereda. synergists.b.…

A: Answer: Introduction: The two important muscles present in human body are upper arm known as the…

Q: Pain produced by muscle spasm results from :-a- mechanical stimulation of pain receptor by muscle…

A: Muscle spasm is an involuntary, persistent, sudden contraction of one or more muscles. It usually is…

Q: When an action potential runs down the surface of the sarcolemma, the muscle doesn't immediately…

A: Muscles  play an important part in locomotion and movement. They are derived from mesodermal layer…

Q: Compare and contrast active and passive range-of-motion exercises ?

A: The human body comprises many joints(the connection made between bones), it exerts movements for…

Q: When you “max out” on reps or pushups or something like that, what kind of stimulus is your brain…

A: Exercise builds and strengthens muscles, which can protect the bones from injury, and support and…

Q: A tendon jerk :-a- is a dynamic stretch reflex b- is a static stretch reflexc- is evoked by…

A: A reflex action is an autonomic and rapid response to a stimulus, which minimizes any damage to the…

Q: After an intensive workout, George felt especially sore in his posterior arm regions. What…

A: Performing various physical excercises repeatedly cause lactose accumulation in the body leading to…

Q: Complete the table about dermatome. Root Injury  Movment  Weakness Reflex Involved C5  Shoulder…

A: Dermatomes are skin areas that send signals to the brain through spinal nerves. Temperature,…

Q: Define threshold stimulus, maximal stimulus, motor unit recruitment, wave summation, unfused…

A: Stimulus is any change of environment that leads to the reaction of the individual. Stimulus is…

Q: Explain the difference between active and passive range of motion.

A: We know that The range of motion exercise applies to an operation aimed at enhancing a particular…

Q: The ilium in the pelvic girdle A. forms the back and sides of the hipbone. B. is the strongest part…

A: Muscles are a type of soft tissue. Your muscles are made up of a lot of elastic fibers. Your body is…

Q: Almost all subjects will show a declining force (pseudo-fatigue), while their eyes are shut, that is…

A: Grip force experiments are conducted using electromyograms. They record electrical activity during…

Q: The fast fatigable motor units are used predominantly for which of the following activities

A: Answer - Option B - Jumping

Q: Is the motor control approach to rehabilitation for low back pain more effective compared to other…

A: Among the wide variety of exercise, motor control approach and graded activity with the principal of…

Q: Due to fiber alignment, the quadriceps muscle group is better at producing increased force, not…

A: Answer - True

Q: The role of muscle spindles in the maintenance of the upright posture depends upon all the…

A: Muscle spindles are stretch receptors within the body of a muscle that primarily detect changes in…

Q: During abduction of the fingers, axis of the movement is located along the

A: Abduction is the certain body movement or motions.  In abduction, arms, legs and fingers are moved…

Q: All of the following are muscles that control movements of the eyeball EXCEPT the O A orbicularis…

A: 1) movement of the eyeball is controlled by six extraocular muscles and these are the following:…

Q: Post-rotational alteration of muscle tone :-a- results from altered pattern of macular dischargeb-…

A: Muscle tone is the status of the contraction of the resting muscle. The partial contraction of the…

Muscle Action

A change in the body or a bodily organ as a result of its functioning is referred to as an action. Muscle action can be defined as the specific movement of a bodily part generated by the contraction of a muscle. The muscle proteins actin and myosin are the important contractile proteins involved in muscle action. Muscle contraction, in addition to movement, serves several other important functions in the body, including posture, heat generation, and joint stability. Muscle contraction maintains posture, which includes standing and sitting.