BMB 1 - Cranial Nerve Nuclei & Tracts; Cranial Nerve Clinical Examination Flashcards
Identify the respective organs in which each of the following cranial nuclei can be found:
III
IV
Midbrain
Midbrain
Identify the respective organs in which each of the following cranial nuclei can be found:
V
VI
Pons
Pons
Identify the respective organs in which each of the following cranial nuclei can be found:
VII
VIII
Pons
Medulla
Identify the respective organs in which each of the following cranial nuclei can be found:
IX
X
XII
Medulla
Medulla
Medulla
Which (if any) cranial nerve nuclei are found in the superior colliculus of the midbrain?
(1) Edinger-westphal
(2) Oculomotor
Which (if any) cranial nerve nuclei are found in the inferior colliculus of the midbrain?
Trochlear
____________ _______ refers to the ability to simultaneously move both eyes to point in the same direction.
Conjugate gaze refers to the ability to simultaneously move both eyes to point in the same direction.
Which cranial nerves are connected via the medial longitutinal fasciculus?
III, IV, andVI
The _______ _______ consolidates sensory information about taste from VII, IX, and X.
The solitary nucleus consolidates sensory information about taste from VII, IX, and X.
The solitary nucleus consolidates sensory information about what sense?
Taste
The oculomotor nucleus is found in the _______ colliculus.
The Edinger-Westphal nucleus is found in the _______ colliculus.
The trochlear nucleus is found in the _______ colliculus.
The oculomotor nucleus is found in the superior colliculus.
The Edinger-Westphal nucleus is found in the superior colliculus.
The trochlear nucleus is found in the inferior colliculus.
The nuclei associated with cranial nerve V are all at least partially located within which single organ?
The pons
(the mesencephalic nucleus extends up into the midbrain;
the spinal nucleus extends down into the medulla))
Name the four cranial nuclei associated with cranial nerve V (from rostral to caudal).
(1) Mesencephalic
(2) Motor
(3) Main sensory
(4) Spinal
Which cranial nucleus is responsible for mastication?
Motor nucleus
(CN V)
Which cranial nucleus receives information about discriminative sensation and light touch of the face?
Main sensory nucleus
(CN V)
Which cranial nucleus receives information about pain and temperature from the ipsilateral face?
Spinal nucleus
(CN V)
The spinal nucleus receives information from which cranial nerves?
V, VII, IX, and X
Cranial nerves VII, IX, and X bring sensory information to the spinal nucleus regarding what structure(s)?
The ear
Identify the function of the following cranial nuclei:
Abducens nuclei
Facial nuclei
Lateral rectus innervation
Facial musculature innervation
If a patient has ipsilateral facial nerve palsy and abducens palsy, there is likely a lesion in what organ?
The pons
likely a small lesion of the facial colliculus (where the abducens nucleus is covered by facial nerve fibers)
Name three cranial nerve nuclei found in the medulla oblongata.
Nucleus ambiguus (CN IX and X)
Inferior salivatory nucleus (IX)
Dorsal motor nucleus (CN X)
Which cranial nucleus receives input from cranial nerves IX and X and is involved in coordinating deglutition?
Nucleus ambiguus
Which cranial nerve nucleus is in charge of parasympathetic innervation of the heart, lungs, and GI tract?
The dorsal motor nucleus (CN X)
The superior salivary nucleus (CN ___) is found in the _____.
The superior salivary nucleus (CN VII) is found in the pons.
The inferior salivary nucleus (CN ___) is found in the _____.
The inferior salivary nucleus (CN IX) is found in the medulla.
CN XII receives its input from which cranial nucleus in order to control the musculature of the tongue?
The hypoglossal nucleus
