1.06 - PNS - Neurology of Communication Flashcards Preview

Speech Anatomy & Physiology > 1.06 - PNS - Neurology of Communication > Flashcards

Flashcards in 1.06 - PNS - Neurology of Communication Deck (89)
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31

What Component of Speaking is based in the Premotor Area?

Sensorimotor Planning/Programming

32

What Component of Speaking activates motor neurons?

Neuromuscular Execution

33

What Component of Speaking creates muscle contractions?

Neuromuscular Execution

34

What Component of Speaking generates movement?

Neuromuscular Execution

35

What Component of Speaking generates and regulates subglottal pressure?

Neuromuscular Execution

36

What Component of Speaking moves the articulators to modulate position, shape, cross-sectional area, constrictions over time?

Neuromuscular Execution

37

What Component of Speaking creates acoustic output?

Neuromuscular Execution

(Speech)

38

What Component of Speaking is based in the Motor Cortex?

Neuromuscular Execution

39

The UMN are _______ whose pathway goes from _________ or _________.

Nerve Tracts

Cortex to Cranial Nerves

Cortex to Spinal Nerves

40

The LMN are ________. They are either _____ or _____. Their final destination is ______.

Nerves

Cranial (come from brainstem)

Spinal (come from spinal cord)

Muscle

41

The Corticospinal tract starts with ______.

The motor nuclei in the cortex

42

Where does the Corticospinal Tract go after it leaves the motor nuclei in the cortex?

Axon pathways for the Corona Radiata

43

Where does the Corticospinal Tract go after the Corona Radiata?

The fibers consolidate into the Internal Capsule

44

Where does the Corticospinal Tract go after the Internal Capsule?

The fibers descend to the level of Medulla

45

Where does the Corticospinal Tract go after the Medulla?

Most will decussate at the Pyramids of the Medulla

46

Where does the Corticospinal Tract go after it decussates at the Pyramids of the Medulla?

Descends the contralateral spinal cord as either the Lateral or Anterior Horns

47

Where does the Corticospinal Tract go after it descends the contralateral spinal cord (Lateral/Anterior Horns)?

It synapses on the spinal nerve nuclei (grey matter)

48

What is the ultimate pathway of the Corticospinal Tract?

From Cortex to Spinal Nerve Nuclei

49

Where is the Corticobulbar Tract located?

In the brainstem

50

What is the ultimate pathway of the Corticobulbar Tract?

From the Cortex to the Cranial Nerve Nuclei

51

Where does the Corticobulbar Tract originate?

With the motor nuclei in the cortex

52

Where does the Corticobulbar Tract go after it leaves the motor nuclei in the cortex?

To to axon pathways in the Corona Radiata

53

Where does the Corticobulbar Tract go after it leaves the Corona Radiata?

The fibers consolidate into the Internal Capsule

54

Where does the Corticobulbar Tract go after it leaves the Internal Capsule?

The fibers descend to the level of the brainstem

55

What happens once the Corticobulbar Tract reaches the brainstem?

Some fibers decussate but others do not

56

What happens once some of the fibers of the Corticobulbar Tract have decussated?

They synapse on the Cranial Nerve Nuclei (grey matter)

57

Are the Corticospinal and Corticobulbar Tracts direct or indirect pathways?

Direct

58

Where are the UMN nuclei located?

In the cortex

59

Where are the LMN nuclei located?

In the Brainstem (Cranial Nerves) In the Spinal Cord (Spinal Nerves)

60

Does the Nervous System tell muscles when to contract relative to other muscles (synergy)?

Yes