Neuroanatomy Exam #2

1. The fornix consists of all of the following parts EXCEPT

1. alveus

2. calcar avis

3. fimbria

4. crus

5. column

2. Psychic blindness would most likely result from bilateral lesions in which of the following structures

1. Accumbens septi nucleus

2. Amygdala

3. Hippocampus

4. Superior colliculus

5. Subiculun

Klüver-Bucy syndrome is a behavioral disorder that occurs when both the right and left medial temporal lobes of the brain malfunction. The amygdala has been a particularly implicated brain region in the pathogenesis of this syndrome.

Symptoms

The list of symptoms differs somewhat by source. Generally included are the following:

1. Docility. Characterized by exhibiting diminished fear responses or reacting with unusually low aggression. This has also been termed "placidity" or "tameness".

2. Dietary changes. Characterized by eating inappropriate objects and/or overeating (e.g. bulimia).

3. Hyperorality. This was described by Ozawa et al. as "an oral tendency, or compulsion to examine objects by mouth".

4. Altered sexuality. Characterized by a heightened sex drive or a tendency to seek sexual stimulation from unusual or inappropriate objects.

5. Visual agnosia. Characterized by an inability to recognize familiar objects or people. (psychic blindness)

3. Which of the following signs and symptoms is NOT related to Kluver-Bucy syndrome?

1. Hyperphagia (eating too much)

2. Psychic blindness

3. Docility

4. Hypersexuality

5. Amnestic confabulation

4. All of the following statements concerning the primary olfactory cortex are correct EXCEPT

1. it receives olfactory input from the lateral olfactory stria

2. it projects to the thalamus

3. it projects to the amygdale

4. it includes the entorhinal cortex

5. it includes the prepiriform and periamygdaloid cortices

5. The globus pallidus projects to the thalamus via the

1. fasciculus retroflexus

2. stria medullaris

3. ansa medullaris

4. ansa peduncularis

5. stria terminalis

All of them are false! ansa lenticularis

6. The striatum receives major input from all of the following nuclei EXCEPT the

1. substantia nigra

2. centromediam nucleus

3. motor cortex

4. sensory cortex

5. subthalamic nucleus

7. Wilson disease is characterized by all of the following EXCEPT

1. it is disorder due to a defect in the metabolism of copper

2. it is inherited as an autosomal dominant trait

3. tremor, rigidity, athetotic, or choreiform movements are present

4. a corneal Kayser-Freisher ring is pathologonomic

5. lesions are found in the liver and lentiform nucleus

8. All of the following statements concerning Huntington disease are correct EXCEPT

1. it is inherited as an autosomal dominant trait

2. it is associated with severe degeneration of the subthalamic nucleous

3. it is associated with hydrocephalus

4. patient have dementia

5. patient have chorieform movements

9. Which of the following reflexes is a monosynaptic reflex?

1. Archilles reflex

2. Babinski reflex

3. Corneal reflex

4. Extensor plantar reflex

5. Pupillary light reflex

10. All of the following statements concerning spinal nerves are correct EXCEPT

1. dorsal roots contain sensory input

2. ventral roots contain motor output

3. all spinal nerve have gray communicating rami

4. all spinal nerve have white communicating rami

5. the first cervical nerves frequently have no dorsal roots

11. Neurologic examination reveals: weakness of the pterygoid and masseter muscles, left side; corneal reflex absent, left side; and facial hemianesthesia, left side. The lesion site responsible is in the

1. midpointine tegmentum, lateral zone left side

2. midpointine base tegmentum, lateral zone left side

3. caudal pointine tegmentum, dorsal medial zone, left side

4. foramen ovale, left side

12. All of the following statements concerning the trapezoid body are correct EXCEPT

1. it is found in the ventral pontine tegmentum

2. it contains the medial longitudinal fasciculus (MLF)

3. it contains the medial lemniscus

4. it contains aberrant corticobulbar fibers

5. it contains auditory fibers

13. All of the statements concerning the vestibular ganglion are correct EXCEPT

1. it lies within the bony modiolus

2. it innervates the hair cells of the cristae ampullares

3. it innervates the hair cells of the utricle and saccule

4. it contains bipolar ganglion cells

5. it projects directly to the cerebellar cortex

14. A 10 years old boy has a right arm leg dystaxia, nystagmus, hoarseness, along with miosis and ptosis on the right. Bronchoscopy reveals a paretic vocal cord on the right. The lesion site responsible is most likely the

1. right dorsal motor nucleus of CN X

2. left red nucleus

3. dorsolateral medulla

4. dorsolateral pons

5. internal capsule

15. Destruction of the right cuneate nucleus results in which of the following sensory deficits?

1. Apallesthesia, left hand

2. Apallesthesia, right hand

3. Apallethesia left foot

4. Analgesia, left hand

5. Analgesia, right foot

16. All of the following statements concerning the vestibulocerebellar pathway are correct EXCEPT

1. it plays a role in the initiation, planning, and timing of voluntary motor activities

2. it ptojects via the medial longitudinal fasciculus (MLF)

3. it receives input from the cristae ampullares

4. it receives imput from the maculae of the utricle and saccule

5. it includes the flocculonodular lobe

17. Destruction of the ciliary ganglion results in which of the following deficits?

1. severe ptosis

2. loss of corneal reflex

3. loss of lacrimination

4. loss of direct papillary reflex

5. miosis

18. Sympathetic stimulation results in all of the following responses EXCEPT

1. dilation of the pupil

2. contraction of the bladder

3. dilation of the bronchial lumina

4. increased perspiration

5. ejaculation

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