Flashcards in Trochlear Nerve Deck (10):
1
What type of motor fibers to skeletal muscle are given off by the trochlear nerve?
somatic efferent (SE)
2
What is the embryonic origin of skeletal muscles innervated by the trochlear nerve?
the skeletal muscle is derived from the somites hence somatic efferent (SE)
3
At its apparent origin cranial nerve IV conveys which classification of neural pathways?
somatic efferent pathway
4
What is the location for multipolar SE neurons of the fourth cranial nerve?
trochlear motor nucleus
5
The fourth cranial nerve's apparent origin is from what location?
dorsal surface of the midbrain
6
Somatic efferent fibers from the left nucleus of the fourth cranial nerve will have an apparent origin from which side?
right side
7
What unique feature of the fourth cranial nerve occurs within the midbrain?
it decussates
8
What are the two unique features of the fourth cranial nerve?
- it is the only cranial nerve with an apparent origin from the dorsal surface of the brain
- it is the only cranial efferent nerve to decussate within the midbrain from its nucleus
9
The right fourth cranial nerve will innervate which side target muscle?
the right side muscle
10