Thalamic Lesions: Symptoms and Effects
30 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

What is a characteristic of thalamic pain?

  • A numbness in the homolateral side of the face and body
  • A diffuse, burning and discomforting pain in the anaesthetic area (correct)
  • A complete loss of sensation in the contralateral side of the face and body
  • A sharp, localized pain in the anaesthetic area

    • What is the term for the abnormal posture of the contralateral hand in patients with thalamic lesions?

  • Thalamic syndrome
  • Thalamic hand (correct)
  • Hemisensory disturbance
  • Chorea

    • What is the structure that lies above the hypothalamus?

  • Thalamus (correct)
  • Optic chiasma
  • Internal capsule
  • Tegmentum of the midbrain

    • What is the region anterior to the hypothalamus that is often functionally included in the hypothalamus?

    <p>Preoptic area</p> Signup and view all the answers

    What is the term for the abnormal voluntary movements that occur in patients with thalamic lesions?

    <p>Chorea</p> Signup and view all the answers

    What is the structure that forms the floor and the lower part of the lateral wall of the third ventricle?

    <p>Hypothalamus</p> Signup and view all the answers

    What is the function of the mammillothalamic tract in the hypothalamic nuclei?

    <p>To serve as a marker for dividing the medial and lateral zones</p> Signup and view all the answers

    Which nucleus is located in both the medial and lateral zones of the hypothalamic nuclei?

    <p>Preoptic nucleus</p> Signup and view all the answers

    What is the main function of the hypothalamus in terms of communication with the rest of the body?

    <p>To receive and respond to information from the rest of the body</p> Signup and view all the answers

    What is the primary route through which the hypothalamus exerts its control over the body?

    <p>Through the nervous system</p> Signup and view all the answers

    What is the function of the cerebrospinal fluid in relation to the hypothalamus?

    <p>To serve as a conduit for neurosecretory cells</p> Signup and view all the answers

    What type of afferents are part of the main afferent pathways of the hypothalamus?

    <p>Somatic and visceral afferents</p> Signup and view all the answers

    What is the pathway through which corticohypothalamic fibers reach the hypothalamus?

    <p>Directly from the frontal lobe of the cerebral cortex</p> Signup and view all the answers

    Which of the following nerves is NOT connected to the hypothalamus in the brainstem?

    <p>Trigeminal nerve</p> Signup and view all the answers

    What is the main function of the descending fibers from the hypothalamus to the brainstem and spinal cord?

    <p>To influence the peripheral neurons of the autonomic nervous system</p> Signup and view all the answers

    Which of the following fibers passes through the tractus solitarius?

    <p>Lemniscal afferent fibers</p> Signup and view all the answers

    What is the origin of the amygdalohypothalamic fibers?

    <p>Amygdaloid complex</p> Signup and view all the answers

    What is the pathway through which visual afferents reach the hypothalamus?

    <p>Through the optic chiasma</p> Signup and view all the answers

    What is the result of stimulation of the posterior portion of the hypothalamus?

    <p>Production of heat</p> Signup and view all the answers

    What is the effect of stimulating the medial region of the hypothalamus?

    <p>Inhibition of eating</p> Signup and view all the answers

    Which regions of the hypothalamus are involved in regulating emotion and behavior?

    <p>Hypothalamus, limbic system, and prefrontal cortex</p> Signup and view all the answers

    What is the result of hypothalamic lesions in terms of weight management?

    <p>Severe obesity</p> Signup and view all the answers

    Which of the following is NOT a function of the hypothalamus?

    <p>Motor control</p> Signup and view all the answers

    What is the clinical condition often associated with hypothalamic lesions and genital hypoplasia or atrophy?

    <p>Obesity</p> Signup and view all the answers

    What is the characteristic of urine in patients with diabetes insipidus?

    <p>Low specific gravity</p> Signup and view all the answers

    What is the primary function of the hypothalamus in relation to body temperature?

    <p>Maintenance of body temperature</p> Signup and view all the answers

    What is the location of the subthalamic nuclei?

    <p>Between the thalamus and tegmentum of the midbrain</p> Signup and view all the answers

    What is the primary function of the epithalamus?

    <p>Production of melatonin</p> Signup and view all the answers

    What is the characteristic of patients with hypothalamic lesions in terms of sleep patterns?

    <p>Frequent short periods of sleep during the waking hours</p> Signup and view all the answers

    What is the term for the condition characterized by impotence or amenorrhea in patients with hypothalamic disease?

    <p>Sexual retardation</p> Signup and view all the answers

    More Like This

    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser