intro to neuroanatomy
29 Questions
0 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

Which structure is responsible for coordinating movement, posture, and balance?

  • Spinal nerves
  • Receptor cell
  • Cortex (correct)
  • Basal ganglia
  • How many cranial nerves are present in the human brain?

  • 12 (correct)
  • 24
  • 31
  • 3
  • Which part of the nervous system is responsible for transmitting motor signals from the brain to the muscles?

  • Basal ganglia
  • Descending tracts (correct)
  • Sensory nucleus
  • Ascending tracts
  • In the context of motor control, what is the general rule regarding the number of neurons involved in transmitting sensory information to the cortex?

    <p>&quot;Three neurons to cortex&quot; (D)</p> Signup and view all the answers

    Which area of the brain serves as a 'black box' for sensory and motor information processing?

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

    What is the exception to the 'Three neurons to cortex' rule in sensory systems?

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

    Which structure serves as a major CNS pathway connecting the thalamus to the cortex?

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

    Which descending pathway is responsible for transmitting motor signals from the cortex to the spinal cord?

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

    What structure connects the two hemispheres of the brain for communication?

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

    What is the function of the Anterolateral System in the nervous system?

    <p>Transmitting pain and temperature sensations (A)</p> Signup and view all the answers

    Which pathway is the 2nd major tract from the spinal cord to the thalamus for touch, vibration, and proprioception?

    <p>Medial Lemniscus fibers (D)</p> Signup and view all the answers

    What is the main function of the Lower part of the pyramids in the nervous system?

    <p>Site of crossing fibers (B)</p> Signup and view all the answers

    Which structure serves as a 'major highway' for both ascending and descending fibers related to the cerebral cortex?

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

    What concept is emphasized by the statement 'RIGHT BRAIN (CORTEX) CONTROLS LEFT SIDE OF BODY AND VICE VERSA'?

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

    Match the following with their definitions

    <p>CNS = brain and spinal cord PNS = cranial and visceral nerves and ganglia Neurons = neural circuits Glia = oligodendrocytes, astrocytes, microglia</p> Signup and view all the answers

    Match the following with their definitions

    <p>Corpus callosum = structure that connects the two hemispheres Afferents = carry information to the CNS Efferents = carry information away from the CNS Nucleus = collection of neuronal cell bodies in white matter</p> Signup and view all the answers

    Match the following with their definition

    <p>Lamina/cortex = when neuronal cell bodies are organized in layers Ganglion = accumulation of neuronal cell bodies in the PNS Nerves = collection of nerve fibers in the PNS Tracts = collection of nerve fibers in the CNS</p> Signup and view all the answers

    Match the following with their definition

    <p>Pyramids = Corticospinal fibers (from motor cortex to ventral horn in spinal cord) Internal Capsule = ascending fibers going to, and descending fibers coming from the cerebral cortex Crus Cerebri or Cerebral Peduncle = Corticospinal and corticobulbar fibers at the level of the midbrain Anterolateral System = Spinothalamic tract (pain and temperature)</p> Signup and view all the answers

    Match the following with their definition

    <p>Medial Lemniscus = 2nd major tract from spinal cord to thalamus (touch/vibration/proprioception “TVP” fibers) uses different path (via dorsal columns in spinal cord) Commissure/Decussation = crossing over of nerve tracts from one side to the other tractus = bundle corona = crown</p> Signup and view all the answers

    What is the function of the Crus Cerebri or Cerebral Peduncle in the nervous system?

    <p>Transmission of corticospinal and corticobulbar fibers (C)</p> Signup and view all the answers

    Which structure serves as a 'major highway' for both ascending and descending fibers related to the cerebral cortex?

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

    What is the main function of the Anterolateral System in the nervous system?

    <p>Transmission of pain and temperature sensations (C)</p> Signup and view all the answers

    What is the exception to the general rule known as 'THREE neurons to cortex' in sensory systems?

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

    Which part of the nervous system is responsible for transmitting motor signals from the brain to the muscles?

    <p>Crus Cerebri or Cerebral Peduncle (C)</p> Signup and view all the answers

    What concept is emphasized by the statement 'RIGHT BRAIN (CORTEX) CONTROLS LEFT SIDE OF BODY AND VICE VERSA'?

    <p>Contralateral organization of motor control (C)</p> Signup and view all the answers

    Which structure is responsible for coordinating movement, posture, and balance?

    <p>Lower part of pyramids (A)</p> Signup and view all the answers

    Which term refers to crossing over of nerve tracts from one side to the other?

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

    What is the function of the Medial Lemniscus in the nervous system?

    <p>Transmission of touch, vibration, and proprioception sensations (B)</p> Signup and view all the answers

    What does crossing over at the lower part of pyramids signify in terms of motor control?

    <p>Differentiation between upper and lower body control (B)</p> Signup and view all the answers

    More Like This

    Motor Skill and Movement Control Quiz
    16 questions
    Sensory Motor Control
    12 questions

    Sensory Motor Control

    PrincipledPiano avatar
    PrincipledPiano
    Neural Pathways: Corticospinal Tracts Overview
    100 questions
    Use Quizgecko on...
    Browser
    Browser