bio flashcards
The areas of Michael's brain that were injured during his birth affected his control over his voluntary movements. Which part of the nervous system distributes motor commands to skeletal muscles?
Somatic nervous system
The somatic nervous system controls the contractions of skeletal muscles and is under voluntary control.
Which principle descending motor pathway provides conscious control over voluntary muscle movements?
Corticospinal pathway
The corticospinal pathway is also called the pyramidal system and provides conscious motor control over skeletal muscles.
Which principle descending motor pathway primarily controls muscle tone and balance? the vestibulospinal tract of the medial pathway
The vestibulospinal tract provides subconscious regulation over balance and muscle tone.
Which parts of the somatic nervous system are responsible for coordinating and providing feedback on muscle contractions? the basal nuclei and cerebellum
The basal nuclei adjust or establish patterns of muscle movements, and the cerebellum monitors proprioceptive and vestibular information.
Which of these is/are (a) component(s) of the somatic nervous system?
Ventral roots
Motor cortex
Ventral horn
All of these are component of the somatic nervous system
Mechanoreceptors that respond to changes in blood pressure are called
Baroreceptors
Assessing spinal nerve damage may involve the use of a vibration fork that is tapped along segments of the spinal nerve pathway. Which type of sensory receptor detects vibrations?
Tactile receptor
During anesthesia, a complete disruption in sensory perceptions is desired. Which of the following events is NOT associated with the sensory pathway?
Action potential generation in a motor neuron
Propagation of a signal
Depolarization of a receptor
All of the listed events are associated with the sensory pathway
When you touch a hot stove, along which pathway will the impulses travel and what is the final destination?
The lateral spinothalamic tract,
Somatic nervous system
The somatic nervous system controls the contractions of skeletal muscles and is under voluntary control.
Which principle descending motor pathway provides conscious control over voluntary muscle movements?
Corticospinal pathway
The corticospinal pathway is also called the pyramidal system and provides conscious motor control over skeletal muscles.
Which principle descending motor pathway primarily controls muscle tone and balance? the vestibulospinal tract of the medial pathway
The vestibulospinal tract provides subconscious regulation over balance and muscle tone.
Which parts of the somatic nervous system are responsible for coordinating and providing feedback on muscle contractions? the basal nuclei and cerebellum
The basal nuclei adjust or establish patterns of muscle movements, and the cerebellum monitors proprioceptive and vestibular information.
Which of these is/are (a) component(s) of the somatic nervous system?
Ventral roots
Motor cortex
Ventral horn
All of these are component of the somatic nervous system
Mechanoreceptors that respond to changes in blood pressure are called
Baroreceptors
Assessing spinal nerve damage may involve the use of a vibration fork that is tapped along segments of the spinal nerve pathway. Which type of sensory receptor detects vibrations?
Tactile receptor
During anesthesia, a complete disruption in sensory perceptions is desired. Which of the following events is NOT associated with the sensory pathway?
Action potential generation in a motor neuron
Propagation of a signal
Depolarization of a receptor
All of the listed events are associated with the sensory pathway
When you touch a hot stove, along which pathway will the impulses travel and what is the final destination?
The lateral spinothalamic tract,