Antigarvity muscles maintain stretch reflex for prolonged periods withoutfatigue, because :-a- they are heavily innervated by α -motor neuronsb- they obtain their energy needs mainly from anaerobic metabolic processesc- they contain exceptionally high levels of creatine phosphated- they are rich in mitochondria

Q: n order to study and understand muscle diseases, one needs to have a good understanding of normal…

A: Muscles contract in a repeated pattern of binding and releasing between the two thin and thick…

Q: please explain in detail in your own words Why we need derived position. Aims  of Passive ROM…

A: There are few postural positions which are considered as basic positions and thus they are called…

Q: Why do previously trained muscles adapt more quickly to retraining after a period of disuse ?

A: There are a total of  639 muscles in the human body. Each muscle is of different use. There are…

Q: Co-activation of α and γ-motor   neurons :-a- increases γ-motor neuron discharge whenever the…

A: Alpha (α) motor neurons control muscle contraction involved in voluntary movement, whereas gamma (γ)…

Q: Some skeletal muscle fibers are “fast-twitch” fibers (white fibers), and others are “slow-twitch”…

A: Since you have asked multiple questions, we are eligible to answer only one question. Kindly repost…

Q: [ANIMAL PHYSIOLOGY] When an action potential from a motor neuron arrives at the neuromuscular…

A: ACTION POTENTIAL It is a rapid rise and subsequent fall in voltage or membrane potential across a…

Q: γ-motor neurons control muscle tone by :-a- adjusting the supraspinal facilitatory dischargeb-…

A: Muscle tone refers to the maintenance of partial contraction which important for maintaining posture…

Q: Acetylcholine is necessary for the depolarization of skeletal muscle cells. Which of the following…

A: * Acetylcholine is an chemical that functions in brain and body as  neurotransmitter.  *It is an…

Q: Fast-twitch muscle fibers have which of the following characteristics?a. fewer number of…

A: Fast twitch muscle is a muscle which helps you to do short and quick responses

Q: Myofibis in muscle fibres are made up of repeating units of dark and light bonds called

A: Myofibril is a muscle cell that is shaped like a rod. Many chains of Myofibril bound together to…

Q: What structures/s is/are responsible for the banding pattern in skeletal muscle cells? (EXPLAIN)…

A: Striated muscles are generally voluntary muscles that are under the conscious control of brain.…

Q: Muscle contraction involves a protein conformational change called the power stroke. Where…

A: Each myosin motor protein possesses ATPase activity and functions in a cyclical manner that couples…

Q: number graded recruitment constant summation contraction Not all muscle contractions are of equal…

A: The muscle fiber helps in the process of muscle contraction, which helps in the movement.  When the…

Q: Muscle spindles :-a- are found in all skeletal musclesb- are found only in large skeletal musclesc-…

A: Muscle spindles are sensory receptors that regulate the contraction of muscles by detecting change…

Q: Increased γ-motor neuron discharge stimulates muscle spindles, because :-a- it produces stretch of…

A: A gamma motor neuron (γ motor neuron) is a type of lower motor neuron, which takes part in the…

Q: The motor end plate is _ a folded area of muscle cell membrane a specialized protein on the…

A: Motor end plate  It a special type of synapse where motor axon touches to a targeted muscle cell.

Q: Number 5 in Graph B represents iand is the result of i The statement above is best completed by the…

A: Need to find what the label 5 represents in the graph given.

Q: As skeletal muscle shortens with contraction, the length of the I band remains constant as the…

A: Muscle contraction is defined as the process of stimulation of tension generation sites present…

Q: Muscles vary greatly in terms of their endurance. The gluteus medias is an important stabilizer…

A: The ability of a muscle group or individual muscle to undergo repeated contractions for a long time…

Q: The tendon of a muscle O Is don

A: Tendons are tissues that attach a muscle to other parts of the body like bones. They are the…

Q: Which of the following is NOT TRUE of the neuromuscular junction? O presynaptic calcium influx…

A: Calcium ions activate the exocytosis of the synaptic vesicle which contains neurotransmitters and it…

Q: The nuclear-bag fibers of muscle spindles are innervated by :-a- Aγ nerve fibersb- Aβ nerve fibersc-…

A: The muscle spindles are stretch receptors inside the body of a muscle. The reflexes are immediate or…

Q: Both the withdrawal reflex and the Golgi tendon reflex involve sensory signals that ultimately…

A: The reflex arcs can be of two types called the somatic reflex arc and the autonomic reflex arc. The…

Q: Stretch of an innervated muscle evokes :-a- contraction of its spindlesb- contraction of its…

A: The stretch reflex (myotatic reflex) is a monosynaptic reflex that controls the length of a skeletal…

Q: 5. LABEL the following features on the figure to the RIGHT: insertion, origin, tendon, muscle Now…

A: Muscle tissue is a well-vascularized soft tissue present in the muscles of animal body. Muscle…

Q: Type I of muscle fibers are utilize both oxidative metabolism O and anaerobic glycolysis O utilize…

A: The three types of muscle fibres are slow oxidative (SO), fast oxidative (FO) and fast glycolytic…

Q: Chickens are capable of only brief bursts of flight, and their flying muscles consist of fast…

A: Introduction: Wings of birds are responsible for giving them flight. They possess feathers and the…

Q: Using pyramidal motor tract as a template, describe the voluntary control of skeletal muscles being…

A: Pyramidal tracts consist of the corticospinal tract and corticobulbar tract.  The tracts are…

Q: The release of calcium ions initiates muscle contractions.Watch this video…

A: Muscles are soft tissues present in most animals. They contain protein filaments called actin and…

Q: Suppose a drug blocks entry of calcium from the extracellular fluid. What if, anything, would happen…

A: Muscle cells are specialized cells that use contractile motion for movement either voluntary or…

Q: When the γ-motor neuron discharge to a muscle decreases, it causes :-a- increased muscle spindle…

A: The nervous system plays a major role in transmitting the reflexes from the tissues to the brain.…

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: The disease poliomyelitis (po′le-o-mi′˘e-li′tis) destroys motor neurons, causingloss of muscle…

A: Poliomyelitis is caused by a virus that may cause paralysis in the person. Poliomyelitis can be…

Q: How is the muscular contraction stopped (i.e.: how does a muscle relax after contraction)? 1. The…

A: Muscle Contraction is triggered when an action potential travels along the nerves to the muscles.…

Q: Smooth muscle contraction is controlled by releasing neurotransmitters trom: Presynaptic cleft O…

A: Smooth muscle contraction is controlled by releasing neurotransmitters from:

Q: Every skeletal muscle fiber is supplied by a motorneuron at the NMJ. Watch this…

A: Muscle cells are specific for contraction. It allows for motions and facilitates bodily processes…

Q: Now in your own words, EXPLAIN (1) howa neural impulse is transferred to a muscle cell this is the…

A: Neural impulse or a nerve impulse refers to a signal that is transferred along the nerve fiber. It…

Q: Inverse stretch reflex :-a- increases the possibility of avulsion of the excessively stretched…

A: The inverse stretch reflex also is known as Golgi tendon reflex refers to the self-induced…

Q: The ocular muscle is an example of: a. Slow twitch muscle O b. Fast tetanus muscle C. Slow tetanus…

A: Ocular muscle has a unique slow non  twitch  , fatigue resistant muscle fiber    Its a  slow twitch…

Q: When a skeletal muscle is suddenly stretched :-a- it relaxes suddenlyb- it develops a static stretch…

A: The muscular system comprises of skeletal muscles, smooth muscles and tendons. This system plays an…

Q: Tendon jerks are clinically examined to asses :-a- integrity of muscle spindlesb- integrity of…

A: A reflex is an involuntary and sudden movement in response to a stimulus. It is an autonomic…

Q: The Km of muscle hexokinase is relatively At average blood glucose concentrations its active site is…

A: Hexokinase is an enzyme that converts hexoses (six-carbon sugars) to hexose phosphate. The most…

Q: Spasticity of the paralyzed muscles in UMN lesions is associated with :-a- inhibition of tendon…

A: The upper motor neuron can be defined as the lesion of the neural pathway that lies above the…

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…

Q: A potential benefit of recruiting slow oxidative fibers for contraction before recruiting fast…

A: In skeletal muscle fibers, contraction in Slow oxidative (SO) fibers is relatively slow and use…

Q: The discharge from Golgi tendon organs initiated by excessive stretch ofa skeletal muscle produces…

A: Introduction  Golgi tendon organ are the proprioceptor (sense organ) which receives the information…

Q: Summation, a property of skeletal muscles, is primarily caused by! O Lactic acid buildup O…

A: The two main characteristics of skeletal muscle fiber are Excitability and Extensibility. That means…