The medulla oblongata

0.0(0)
studied byStudied by 0 people
0.0(0)
full-widthCall Kai
learnLearn
examPractice Test
spaced repetitionSpaced Repetition
heart puzzleMatch
flashcardsFlashcards
GameKnowt Play
Card Sorting

1/6

encourage image

There's no tags or description

Looks like no tags are added yet.

Study Analytics
Name
Mastery
Learn
Test
Matching
Spaced

No study sessions yet.

7 Terms

1
New cards

Role of the medulla

  • Contains ascending (sensory) and descending (motor) fiber tracts. The reticular formation of the medulla contains nuclei that influence basic bodily functions and reflexes (coughing or vomiting)

2
New cards

Components of the medulla

  • Raphe nucleus

  • Olivary inferior nucleus: Involved in motor functions. It communicates directly with the cerebellum and is part of the extrapyramidal motor pathways

  • Nucleus ambiguus: Controls the muscles of the upper digestive tract. Involved in digestive functions (swallowing, speech and the gag reflex).

  • Nucleus of tractus solitarius: Receives visceral sensory information from internal organs.
    Regulates: respiratory function, visceral sensitivity, and hypovolemic thirst.

  • Vestibular nucleus: Receives information from the inner ear. It is responsible for balance, posture and stability.

<ul><li><p><strong>Raphe nucleus</strong></p></li><li><p><strong>Olivary inferior nucleus:</strong> Involved in motor functions. It communicates directly with the cerebellum and is part of the extrapyramidal motor pathways </p></li></ul><ul><li><p><strong>Nucleus ambiguus:</strong> Controls the muscles of the upper digestive tract. Involved in digestive functions (swallowing, speech and the gag reflex).</p></li><li><p><strong>Nucleus of tractus solitarius:</strong> Receives visceral sensory information from internal organs.<br>Regulates: respiratory function, visceral sensitivity, and hypovolemic thirst. </p></li><li><p><strong>Vestibular nucleus:</strong> Receives information from the inner ear. It is responsible for balance, posture and stability.</p></li></ul><p></p>
3
New cards

Raphe nucleus

  • Raphe nucleus: Contain neurons that release (5-HT Serotonine). Which regulates mood and sleep, pain modulation, some autonomic functions (blood pressure).

4
New cards

Olivary inferior nucleus

  • Olivary inferior nucleus: Involved in motor functions. It communicates directly with the cerebellum and is part of the extrapyramidal motor pathways

5
New cards

Nucleus ambiguus

  • Nucleus ambiguus: Controls the muscles of the upper digestive tract. Involved in digestive functions (swallowing, speech and the gag reflex).

6
New cards

Nucleus of tractus solitarius

  • Nucleus of tractus solitarius: Receives visceral sensory information from internal organs.
    Regulates: respiratory function, visceral sensitivity, and hypovolemic thirst.

7
New cards

Vestibular nucleus

  • Vestibular nucleus: Receives information from the inner ear. It is responsible for balance, posture and stability.