Neuroanatomy Quiz

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Questions and Answers

Which of the following structures is directly involved in the projection of the inferior colliculus?

  • Mamillary bodies
  • Optic chiasm
  • Auditory radiation (correct)
  • Hypothalamic sulcus

Which of the following statements accurately describes the relationship between the anterior nucleus of the thalamus and the mamillary bodies in the Papez circuit?

  • The hippocampus projects directly to the anterior nucleus of the thalamus via the fornix.
  • The anterior nucleus of the thalamus receives the mammillothalamic tract from the mamillary bodies. (correct)
  • The anterior nucleus of the thalamus projects to the mamillary bodies.
  • The mamillary bodies project to the hippocampus via the mammillothalamic tract.

Which of the following structures forms the superior boundary of the hypothalamus?

  • Optic chiasm
  • Hypothalamic sulcus
  • Mamillary bodies
  • Linea terminalis (correct)

Which of the following subarachnoid cisterns is directly associated with the circle of Willis?

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

Which of the following ganglia directly influences tear production by the lacrimal gland?

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

Which of the following statements correctly describes a characteristic of the autonomic nervous system?

<p>Preganglionic fibers of the parasympathetic system are shorter than sympathetic preganglionic fibers. (C)</p> Signup and view all the answers

In an adult individual, at what approximate vertebral level does the spinal cord typically end?

<p>Between the first and second lumbar vertebrae (A)</p> Signup and view all the answers

Which of the following tracts is associated with the facilitation of extensor muscles, inhibition of flexor muscles, and maintenance of balance?

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

Which of the following statements regarding CT or MRI is TRUE?

<p>A decrease in pixel size results in an increase in resolution. (B), MRI utilizes the spin of protons to generate images. (C), CT number is determined by the attenuation of X-rays. (D)</p> Signup and view all the answers

What is NOT a risk factor for acute bacterial meningitis?

<p>A history of recent surgery (D)</p> Signup and view all the answers

Which of the following statements about headaches in children is FALSE?

<p>Cranial imaging is always indicated for a child presenting with a headache. (C)</p> Signup and view all the answers

Which type of headache is characterized by frequent or continuous mild, bilateral pain, often described as a tight band or pressure around the head?

<p>Tension-type headache (D)</p> Signup and view all the answers

A 32-year-old woman presents with recurrent, unilateral, pulsating headaches that are accompanied by visual disturbances, photophobia, and phonophobia. These symptoms last for 4 to 72 hours. Which of the following is the most likely diagnosis?

<p>Migraine with aura (A)</p> Signup and view all the answers

The pineal gland develops as a diverticulum from which part of the brain?

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

Which of the following structures contains trabeculae that allow CSF to flow?

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

A 65-year-old woman presents to the emergency department with recent onset confusion and photophobia. Her husband reports she has been experiencing fevers and headaches for the past week. Her temperature is 39.2°C. Which of the following is the most likely diagnosis?

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

Which nerve affected by an acoustic neuroma passes through the same foramen?

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

Which structure do olfactory nerve fibers pass through to reach the olfactory bulb?

<p>Cribriform plate of the ethmoid (A)</p> Signup and view all the answers

At which level of the brainstem do the lateral corticospinal tract neurons decussate?

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

Which part of the brainstem is associated with hearing?

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

Degeneration of which structure in the mesencephalon is a cause of Parkinson's disease?

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

Which structure is an exception among those passing through the cavernous sinus?

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

Which cranial nerve does not have an anterior function?

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

What is the first-line treatment for mild pain?

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

Which area is likely responsible for a deficiency in understanding written and spoken language?

<p>Sensory speech area (B)</p> Signup and view all the answers

Damage to which cortical area would most likely result in astereognosis?

<p>Somesthetic association cortex (B)</p> Signup and view all the answers

Which thalamic nucleus is associated with the emotional aspect of facial sensation?

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

What pathway connects Wernicke's and Broca's areas in the cerebral cortex?

<p>Superior longitudinal fasciculus (A)</p> Signup and view all the answers

Which structure does not participate in the accommodation reflex?

<p>Long ciliary nerve (A)</p> Signup and view all the answers

Which artery is most commonly associated with hypertensive hemorrhages in the basal ganglia?

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

A patient with vertigo and hearing loss may have an infarction in which artery?

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

What type of neurotransmitter is primarily found in the subthalamic nucleus?

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

Which one of the following conditions is NOT related to habituation?

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

What is the primary function of the primary motor cortex?

<p>Generating neural impulses that control the execution of movement (C)</p> Signup and view all the answers

An abnormal Babinski reflex indicates damage to which of the following structures?

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

If a transection is made through the pons, which system would likely lose its influence, leading to sleep disturbances?

<p>Ascending reticular activating system (ARAS) (C)</p> Signup and view all the answers

When a phone number is temporarily stored and later forgotten, this information likely resided in which type of memory?

<p>Short term memory (B)</p> Signup and view all the answers

Which of the following is NOT classified as a spinal reflex?

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

Which reflex involves inhibitory synapses during its organization in the spinal cord?

<p>Golgi tendon reflex (A)</p> Signup and view all the answers

Which of the following statements is WRONG regarding basal nuclei?

<p>Basal nuclei receive information from extensive cortical veins (D)</p> Signup and view all the answers

What is the most appropriate initial treatment for a patient with cloudy lumbar puncture fluid, high opening pressure, and signs of possible meningitis?

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

Which statement about febrile seizures is NOT true?

<p>Febrile seizures are generally considered as a fatal condition (C)</p> Signup and view all the answers

Which of the following statements accurately describes poliomyelitis?

<p>Is primarily asymptomatic or presents as a mild febrile illness (B)</p> Signup and view all the answers

Which statement regarding the diagnosis of tetanus is accurate?

<p>There isn’t any specific laboratory test for diagnosis (B)</p> Signup and view all the answers

Which of the following about human prion diseases is NOT true?

<p>Myoclonus is often an early manifestation (D)</p> Signup and view all the answers

What is a common misconception about ion channel mutations and seizures?

<p>They lead to mild seizures that always resolve quickly (A)</p> Signup and view all the answers

Which treatment option is least appropriate for a patient showing signs of severe bacterial meningitis?

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

Which option about prion diseases is incorrect?

<p>All cases are associated with prior surgical procedures (B)</p> Signup and view all the answers

Flashcards

Wernicke's area

Region in the brain responsible for language comprehension.

Astereognosis

Inability to recognize objects by touch.

Basal ganglia functions

Regulate movement, balance, and motor expression.

Labyrinthine artery

Supplies blood to the inner ear.

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Hair cells location

Embedded in the cupulae of the vestibular system.

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Middle cerebral artery

Common site for hypertensive hemorrhages.

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Subthalamic nucleus neurotransmitter

Primarily uses glutamate as a neurotransmitter.

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Auditory cortex

Processes sound information in the brain.

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Acoustic neuroma

A tumor on the vestibulocochlear nerve at the temporal bone.

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Cribriform plate

Structure allowing olfactory nerve fibers to connect nasal cavity and olfactory bulb.

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Decussation of the pyramids

Location in the brainstem where lateral corticospinal tract neurons cross.

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Inferior colliculus

Part of the brainstem associated with auditory processing.

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Substantia nigra

Area in the mesencephalon that degenerates in Parkinson's disease.

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Cavernous sinus

Cavity containing cranial nerves and vessels, but not all pass through.

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Cranial nerve exceptions

Identify cranial nerves that don't share common functions.

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Cortico pontocerebellar pathway

Afferent fibers connecting the cerebellum to the cortex through the middle cerebellar peduncle.

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Papez Circuit

A neural circuit involved in emotional regulation and memory, connecting the hippocampus and mammillary bodies.

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Superior Limitation of Hypothalamus

The hypothalamus is limited superiorly by the hypothalamic sulcus.

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Circle of Willis

An arterial anastomosis located in the suprasellar cistern that provides collateral blood flow to the brain.

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Lacrimal Gland Innervation

The pterygopalatine ganglion influences the lacrimal gland to produce tears.

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Parasympathetic Preganglionic Fibers

These fibers are longer than sympathetic preganglionic fibers and originate from craniosacral levels.

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Spinal Cord Termination Level

The spinal cord ends between the first and second lumbar vertebrae in an adult.

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Lower Motor Neurons Location

Lower motor neuron nuclei for cranial nerves are located in the brainstem.

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Reticulospinal Tract

This tract facilitates extensor muscle activity and inhibits flexors, crucial for postural balance.

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CT number

A measure of X-ray attenuation used in CT imaging.

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MRI

Magnetic Resonance Imaging, utilizes proton spin for imaging.

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Risk factors for meningitis

Factors that increase the likelihood of acute bacterial meningitis.

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Headache types

Categories of headaches including migraine, tension, and cluster.

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Migraine with aura

A type of migraine accompanied by neurological symptoms like light disturbances.

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Pineal gland development

The pineal gland develops from the diencephalon.

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Ependyma function

Lines the ventricles of the brain and produces cerebrospinal fluid (CSF).

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Cerebrospinal fluid flow

Flows around structures with trabeculae in the brain.

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Primary Motor Cortex

Controls voluntary movement by sending neural impulses to muscles.

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Abnormal Babinski Reflex

Indicates possible damage to the pyramidal tracts in the brain.

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Pons Transection Effect

Cuts off influence of ARAS, causing lack of sleep.

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Working Memory

Temporarily stores information for immediate use.

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Types of Spinal Reflexes

Includes withdrawal, knee jerk; excludes conditional reflex.

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Inhibitory Synapse in Reflexes

Most notable in Golgi Tendon reflex, prevents muscle tension overload.

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Basal Nuclei Function

Integrate and process movement signals from cortex, impacting motor control.

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Cerebellar Damage Signs

Includes decomposition of movement, intention tremor; resting tremor not seen.

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Nuchal rigidity

Stiffness of the neck indicative of meningitis or other CNS issues.

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Lumbar puncture

A procedure to collect cerebrospinal fluid for diagnosis.

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Meningitis treatment

Initial treatment often involves antibiotics like ceftriaxone.

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Ion channel mutations

Genetic changes affecting ion channel function, linked to seizures.

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Febrile seizures

Seizures associated with fever, usually non-fatal.

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Poliomyelitis causative agent

Poliomyelitis is caused by the poliovirus.

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Diagnosis of tetanus

Tetanus does not have a specific laboratory test for diagnosis.

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Human prion diseases

Infectious diseases caused by misfolded proteins, resistant to sterilization.

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Study Notes

Anatomy Questions and Answers

  • Question 1: A 70-year-old man presents with difficulty understanding written and spoken language. Which neurological deficit is most likely?
    • Correct answer: Sensory speech area
  • Question 2: Which cortical area's damage leads to astereognosis?
    • Correct answer: Primary sensory cortex
  • Question 3: Which thalamic nucleus is associated with emotional aspects of facial sensation?
    • Correct answer: Ventroposterior
  • Question 4: Which pathway connects Wernicke's and Broca's area?
    • Correct answer: Superior longitudinal fasciculus
  • Question 5: Which structure isn't involved in the accommodation reflex?
    • Correct answer: Optic nerve

Anatomy Questions and Answers (Page 2)

  • Question 6: The majority of hypertensive hemorrhages occur where?
    • Correct answer: In the basal ganglia, specifically involving the lenticulostriate arteries.
  • Question 7: A patient with vertigo and hearing loss shows an infarction in which artery on MRI?
    • Correct answer: The labyrinthine artery.
  • Question 8: What neurotransmitter is in the subthalamic nucleus?
    • Correct answer: Glutamate
  • Question 9: Which function isn't a role of the basal ganglia?
    • Correct answer: Providing balance of the body
  • Question 10: Where are vestibular hair cells located?
    • Correct answer: In the cupulae of the ampullae.
  • Question 11: What structures comprise the cochlear nerve?
    • Correct answer: Central projections of bipolar neurons in the spiral ganglion.

Anatomy Questions and Answers (Page 3)

  • Question 12: Which statement regarding the Papez circuit is correct?
    • Correct answer: The hippocampal formation projects via the fornix to the thalamus.
  • Question 13: What structure limits the hypothalamus superiorly?
    • Correct answer: The hypothalamic sulcus.
  • Question 14: Which subarachnoid cisterna contains the Circle of Willis?
    • Correct answer: The interpeduncular cistern.
  • Question 15: Which ganglion affects the lacrimal gland's tear production?
    • Correct answer: Pterygopalatine ganglion
  • Question 16: Which statement regarding the autonomic nervous system is correct?
    • Correct answer: Preganglionic fibers of the sympathetic system enter the sympathetic trunk via rami communicantes albus

Anatomy Questions and Answers (Page 4)

  • Question 17: At what vertebral level does the spinal cord end?
    • Correct answer: Between the first and second lumbar vertebrae.
  • Question 18: Where are the lower motor neuron nuclei for cranial nerves located?
    • Correct answer: In the brainstem.
  • Question 19: What tract facilitates extensor muscle activity and inhibits flexor muscles, related to balance?
    • Correct answer: Vestibulospinal tract.
  • Question 20: An acoustic neuroma affecting which nerve occurs at the temporal bone?
    • Correct answer: Vestibulocochlear nerve.
  • Question 21: What structure allows olfactory nerve fibers to pass from the nasal cavity to the olfactory bulb?
    • Correct answer: Cribriform plate of the ethmoid.

Anatomy Questions and Answers (Page 5-10)

  • Multiple, diverse questions regarding numerous structures and functions in different brain regions and pathways.

Additional Notes

  • Covers a broad range of anatomy topics, presented as questions
  • Includes specific anatomical structures and their functions
  • Covers various neurological deficits

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