Sensory and Motor Neurons

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Questions and Answers

Which of the following word roots refers to muscle?

  • Sthen/o
  • Sacr/o
  • Myco/o
  • Myo/o (correct)

Which of the following terms refers to the attachment of a muscle to the bone or structure that does not move when the muscle contracts?

  • Tendon
  • Origin (correct)
  • Insertion
  • Belly

Which muscle closes the eye?

  • Soleus
  • Orbicularis oculi (correct)
  • Gracilis
  • Brachialis

Which term describes moving a body part toward the midline?

<p>Adduction (D)</p> Signup and view all the answers

What muscle action means to spin on an axis?

<p>Rotation (D)</p> Signup and view all the answers

What does the term intrinsic refer to in regard to muscle?

<p>Intrinsic describes a muscle that has an origin and insertion located in the same body region. (A)</p> Signup and view all the answers

What muscle action describes bringing the thumb into the palm?

<p>Opposition (D)</p> Signup and view all the answers

Which muscle has an insertion on the mandible?

<p>All of these muscles insert on the mandible. (D)</p> Signup and view all the answers

Which of the following is not found on the back or buttocks?

<p>Deltoid (B)</p> Signup and view all the answers

What is the origin of the frontalis muscle?

<p>Epicranial aponeurosis (C)</p> Signup and view all the answers

Which group of muscles are synergists?

<p>Temporalis and masseter (C)</p> Signup and view all the answers

Which division of the PNS prepares the body for physical activity or fight or flight?

<p>Sympathetic (D)</p> Signup and view all the answers

Which part of a neuron carries the nerve impulse?

<p>Axon (C)</p> Signup and view all the answers

What is not a function of the muscular system?

<p>Electrolyte balance (B)</p> Signup and view all the answers

What part of a neuron usually receives the information?

<p>Dendrite (B)</p> Signup and view all the answers

What part of the axon is called the trigger zone?

<p>Axon hillock (C)</p> Signup and view all the answers

What is the dietary recommended daily allowance of protein for a person of average weight?

<p>46–56 g (B)</p> Signup and view all the answers

Which of the following minerals is required for muscle cell function?

<p>Calcium (B)</p> Signup and view all the answers

What muscular disorder is characterized by painful muscle spasms?

<p>Cramp (A)</p> Signup and view all the answers

Which lobe of the cerebrum is responsible for hearing?

<p>Temporal (B)</p> Signup and view all the answers

What is the function of the frontal lobe of the cerebrum?

<p>All of these are correct (C)</p> Signup and view all the answers

What is the function of the occipital lobe of the cerebrum?

<p>Vision (D)</p> Signup and view all the answers

Which statement about a muscle's response to nerve stimulation is true?

<p>All of these answers are correct. (A)</p> Signup and view all the answers

Which theory of muscle contraction involves thick myofilaments grabbing thin myofilaments and pulling them toward the center of the sarcomere?

<p>Sliding filament theory (D)</p> Signup and view all the answers

What term describes a sustained muscle contraction?

<p>Tetanus (C)</p> Signup and view all the answers

What is a motor unit?

<p>A single nerve cell and all the muscle cells it stimulates (B)</p> Signup and view all the answers

Which term describes moving a body part away from the midline?

<p>Abduction (A)</p> Signup and view all the answers

What muscle action means to spin on an axis?

<p>Rotation (D)</p> Signup and view all the answers

What muscle action describes bringing the thumb into the palm?

<p>Opposition (B)</p> Signup and view all the answers

Which of the following is not found on the back or buttocks?

<p>Deltoid (B)</p> Signup and view all the answers

Which lobe of the cerebrum is responsible for vision?

<p>Occipital (A)</p> Signup and view all the answers

What is the function of the temporal lobe of the cerebrum?

<p>Hearing (B)</p> Signup and view all the answers

What are the two major components of the brainstem?

<p>Medulla oblongata and pons (D)</p> Signup and view all the answers

Which of the following word roots refers to muscle?

<p>Myo/o (B)</p> Signup and view all the answers

Which of the following terms refers to the attachment of a muscle to the bone or structure that does not move when the muscle contracts?

<p>Origin (D)</p> Signup and view all the answers

What does the term intrinsic refer to in regard to muscle?

<p>Intrinsic describes a muscle that has an origin and insertion located in the same body region. (A)</p> Signup and view all the answers

Which of the following muscles is not found on the thigh or leg?

<p>Brachialis (B)</p> Signup and view all the answers

Which of the following muscles closes the eye?

<p>Orbicularis oculi (C)</p> Signup and view all the answers

Which of the following muscles has an insertion on the mandible?

<p>All of these muscles insert on the mandible. (A)</p> Signup and view all the answers

What is the origin of the frontalis muscle?

<p>Epicranial aponeurosis (C)</p> Signup and view all the answers

Which of the following minerals are required for muscle cell function?

<p>Calcium and potassium (A)</p> Signup and view all the answers

What is the function of the muscular system?

<p>Movement (C)</p> Signup and view all the answers

Which of the following statements about the aging of the muscular system is not true?

<p>Our diet and lifestyle solely determine the rate and extent of muscle loss. (B)</p> Signup and view all the answers

What is electromyography used to assess?

<p>Electric stimuli (D)</p> Signup and view all the answers

Which division of the PNS prepares the body for physical activity or fight or flight?

<p>Sympathetic (A)</p> Signup and view all the answers

What part of a neuron carries the nerve impulse?

<p>Axon (A)</p> Signup and view all the answers

Which part of a neuron usually receives the information?

<p>Dendrite (B)</p> Signup and view all the answers

What part of the axon is called the trigger zone?

<p>Axon hillock (D)</p> Signup and view all the answers

Which theory of muscle contraction involves thick myofilaments grabbing thin myofilaments and pulling them toward the center of the sarcomere?

<p>Sliding filament theory (B)</p> Signup and view all the answers

In which phase of a contraction is calcium actively transported back to the sarcoplasmic reticulum?

<p>Relaxation phase (A)</p> Signup and view all the answers

What term describes a sustained muscle contraction?

<p>Tetany (D)</p> Signup and view all the answers

What is the most common lever system in the human body?

<p>Third class (D)</p> Signup and view all the answers

Which of the following word roots refers to muscle?

<p>Myo/o (D)</p> Signup and view all the answers

Which of the following word roots refers to strength?

<p>Sthen/o (A)</p> Signup and view all the answers

Which of the following terms refers to the attachment of a muscle to the bone or structure that does move when the muscle contracts?

<p>Insertion (C)</p> Signup and view all the answers

Which term describes bending a body part anteriorly (except in regard to the knee)?

<p>Flexion (A)</p> Signup and view all the answers

What muscle action means to make a circle with part of the body?

<p>Circumduction (A)</p> Signup and view all the answers

What is a fixator?

<p>A muscle that holds an origin stable for another muscle (A)</p> Signup and view all the answers

What is the term for the main muscle that performs an action?

<p>Prime mover (B)</p> Signup and view all the answers

Which of the following muscles is not found on the thigh or leg?

<p>Brachialis (D)</p> Signup and view all the answers

Which muscle closes the eye?

<p>Orbicularis oculi (D)</p> Signup and view all the answers

Which of the following muscles has an insertion on the mandible?

<p>All of these muscles insert on the mandible. (B)</p> Signup and view all the answers

What is the origin of the frontalis muscle?

<p>Epicranial aponeurosis (C)</p> Signup and view all the answers

Which of the following minerals are required for muscle cell function?

<p>Calcium and potassium (C)</p> Signup and view all the answers

What is the dietary recommended daily allowance of protein for a person of average weight?

<p>46–56 g (C)</p> Signup and view all the answers

What is not a function of the muscular system?

<p>Electrolyte balance (C)</p> Signup and view all the answers

What function of the muscular system is performed when a person's facial expression can tell you how they feel?

<p>Communication (C)</p> Signup and view all the answers

Which lobe of the cerebrum is responsible for hearing?

<p>Temporal (D)</p> Signup and view all the answers

What is the function of the frontal lobe of the cerebrum?

<p>All of these are correct. (C)</p> Signup and view all the answers

What is the function of the occipital lobe of the cerebrum?

<p>Vision (D)</p> Signup and view all the answers

Which theory of muscle contraction involves thick myofilaments grabbing thin myofilaments and pulling them toward the center of the sarcomere?

<p>Sliding filament theory (C)</p> Signup and view all the answers

In which phase of a contraction is calcium actively transported back to the sarcoplasmic reticulum?

<p>Relaxation phase (D)</p> Signup and view all the answers

What is the most common lever system in the human body?

<p>First class (C)</p> Signup and view all the answers

Which type of muscle tissue is voluntary and under conscious control?

<p>Skeletal (C)</p> Signup and view all the answers

Which division of the PNS is responsible for preparing the body for physical activity or fight or flight?

<p>Sympathetic (B)</p> Signup and view all the answers

What part of a neuron carries the nerve impulse?

<p>Axon (C)</p> Signup and view all the answers

Which part of a neuron usually receives the information?

<p>Dendrite (D)</p> Signup and view all the answers

What part of the axon is called the trigger zone?

<p>Axon hillock (C)</p> Signup and view all the answers

Which of the following word roots refers to muscle?

<p>Myo/o (A)</p> Signup and view all the answers

Which of the following word roots refers to strength?

<p>Sthen/o (A)</p> Signup and view all the answers

Which of the following terms refers to the attachment of a muscle to the bone or structure that does not move when the muscle contracts?

<p>Origin (B)</p> Signup and view all the answers

Which lobe of the cerebrum is responsible for hearing?

<p>Temporal (B)</p> Signup and view all the answers

What is the function of the frontal lobe of the cerebrum?

<p>All of these are correct. (C)</p> Signup and view all the answers

What is the function of the occipital lobe of the cerebrum?

<p>Vision (D)</p> Signup and view all the answers

Which mineral is required for muscle cell function?

<p>Calcium (A)</p> Signup and view all the answers

What is the dietary recommended daily allowance of protein for a person of average weight?

<p>46–56 g (C)</p> Signup and view all the answers

What is not a function of the muscular system?

<p>Electrolyte balance (D)</p> Signup and view all the answers

What muscular disorder is characterized by painful muscle spasms?

<p>Cramp (C)</p> Signup and view all the answers

Which term describes bending a body part anteriorly (except in regard to the knee)?

<p>Flexion (B)</p> Signup and view all the answers

What is the term for the main muscle that performs an action?

<p>Prime mover (A)</p> Signup and view all the answers

If a person stands on their tiptoes with their heels off the floor, what action are they performing?

<p>Plantar flexion (D)</p> Signup and view all the answers

What muscle action describes bringing the thumb into the palm?

<p>Opposition (D)</p> Signup and view all the answers

Which division of the PNS prepares the body for physical activity or fight or flight?

<p>Sympathetic (B)</p> Signup and view all the answers

What part of a neuron carries the nerve impulse?

<p>Axon (B)</p> Signup and view all the answers

What part of a neuron usually receives the information?

<p>Dendrite (C)</p> Signup and view all the answers

What part of the axon is called the trigger zone?

<p>Axon hillock (D)</p> Signup and view all the answers

Which of the following muscles does not originate on the humerus?

<p>Diaphragm (C)</p> Signup and view all the answers

What is the function of the rectus abdominus?

<p>To compress the abdomen (B)</p> Signup and view all the answers

Which of the following muscles inserts on the metacarpals and the carpals?

<p>Extensor carpi ulnaris (C)</p> Signup and view all the answers

In the forearm, where do all the flexors originate?

<p>At the medial epicondyle of the humerus (B)</p> Signup and view all the answers

Which statement about a muscle's response to nerve stimulation is true?

<p>All of these answers are correct. (A)</p> Signup and view all the answers

What theory of muscle contraction involves thick myofilaments grabbing thin myofilaments and pulling them toward the center of the sarcomere?

<p>Sliding filament theory (A)</p> Signup and view all the answers

In which phase of a contraction is calcium actively transported back to the sarcoplasmic reticulum?

<p>Relaxation phase (B)</p> Signup and view all the answers

What is a power stroke?

<p>Myosin pulling on actin to draw Z-lines toward the center, shortening the sarcomere (D)</p> Signup and view all the answers

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