Muscle Spindle and Somatic Sensory System Quiz

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What is the role of Golgi tendon organs in skeletal muscles?

Stabilizing actin-myosin crossbridges in the absence of ATP

Sensory receptors providing data to the central nervous system (correct)

Supplying ATP to muscle fibers during activity

Initiating muscle contraction at the neuromuscular junction

What occurs in skeletal muscles when mitochondrial activity stops after death?

Increased myelination of motor nerves

Rigor mortis due to stable actin-myosin crossbridges (correct)

Enhanced ATP production by mitochondria

Decreased muscle rigidity

Where do myelinated motor nerves branch out within skeletal muscles?

Sarcoplasmic reticulum

Perimysium (correct)

Endomysium

Epimysium

What is the structure where the terminal branches of motor axons make contact with muscle fibers?

Neuromuscular junction Signup and view all the answers

What covers the terminal portion of the axon at the neuromuscular junction?

(Schwann) cell with its external lamina Signup and view all the answers

What type of neurons originate in the spinal cord or brainstem to innervate skeletal muscle fibers?

Motor neurons Signup and view all the answers

Where do unmyelinated terminal twigs from motor nerves form synapses with individual muscle fibers?

Endomysium Signup and view all the answers

What do proprioceptors in striated muscles serve as?

Sensory receptors providing data to CNS Signup and view all the answers

In rigor mortis, what accounts for the rigidity of skeletal muscles?

Stable actin-myosin crossbridges in the absence of ATP Signup and view all the answers

What do motor axons terminate on at the neuromuscular junction?

Motor end plate on muscle fiber Signup and view all the answers

Muscle Spindle and Somatic Sensory System Quiz

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Questions and Answers

What is the role of Golgi tendon organs in skeletal muscles?

What occurs in skeletal muscles when mitochondrial activity stops after death?

Where do myelinated motor nerves branch out within skeletal muscles?

What is the structure where the terminal branches of motor axons make contact with muscle fibers?

What covers the terminal portion of the axon at the neuromuscular junction?

What type of neurons originate in the spinal cord or brainstem to innervate skeletal muscle fibers?

Where do unmyelinated terminal twigs from motor nerves form synapses with individual muscle fibers?

What do proprioceptors in striated muscles serve as?

In rigor mortis, what accounts for the rigidity of skeletal muscles?

What do motor axons terminate on at the neuromuscular junction?

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