Chapter 1- Anatomy, Neuroanatomy, and Physiology of speech mechanism Flashcards Preview

PRAXIS and COMPS > Chapter 1- Anatomy, Neuroanatomy, and Physiology of speech mechanism > Flashcards

Flashcards in Chapter 1- Anatomy, Neuroanatomy, and Physiology of speech mechanism Deck (82)
Loading flashcards...
1

The exchange of has between organism and its environment

Respiration

2

What two functions make up respiration?

Inhalation and exhalation

3

When we inhale, the chest cavity __________.

expands

4

How do quiet breathing and breathing for speech difer?

Speech breathing is more conscious and adjusted to meet the demands of speech

5

Humans generally speak on __________

exhaled air

6

Describe the process of inhalation

1. Chest and lungs expand
2. diaphragm lowers
3. air flows in through nose and mouth
4. air goes down pharynx and between open VF
5. air continues downward through trachea
6. air reaches lungs

7

Where are the lungs located?

Thoracic cavity

8

The larynx sits atop what structure?

Trachea

9

How many vertebra are in the spinal column?

32-33

10

Describe the 5 segments of the spinal column

1. 7 cervical (C1-C7)
2. 12 thoracic(T1-T12)
3. 5 lumbar (L1-L5)
4. 5 sacral (S1-S5)
5. 3-4 coccygeal

11

The thick, dome-shaped muscle that separates the abdomen from the thorax

diaphragm

12

Which two primary categories of muscles support respiration?

Thoracic muscles of inhalation and abdominal muscles of expiration

13

Adduction

move toward midline

14

Abduction

move away from midline

15

space between the VF

glottis

16

What is the purpose of the intrinsic muscles of the larynx?

responsible for controlling sound production

17

What are the intrinsic muscles of the larynx?

thyroarytenoid, lateral cricoarytenoid, lateral cricoarytenoid, transverse arytenoid, oblique arytenoid, and posterior cricoarytenoid

18

Which is the primary muscle for abduction?

posterior cricoarytenoid

19

Which nerve innervates the muscles of the larynx?

Vagus nerve X

20

What is the purpose of the extrinsic muscles of the larynx?

support the larynx and fix its position

21

Which extrinsic muscles elevate the larynx?

Suprahyoid muscles (elevators)

22

Which extrinsic muscles lower the larynx?

infrahyoid muscles (depressors)

23

What are the 3 layers of the VF?

1. epithelium (outer cover)
2. lamina propria (middle layer- 3 layers)
3. vocalis muscle (body and stability)

24

Name all the pairs of VF

1. True VF
2. Aryepiglottic folds
3. Ventricular (false) folds

25

Describe the aryepiglottic folds

Extend from the tips of the arytenoids to the larynx. They separate the laryngeal vestibule from the pharynx and help protect the airway

26

Describe the ventricular folds

They only vibrate at very low frequencies and compress during coughing and lifting heavy objects

27

Vocal folds vibrate because of the forces and pressure of air and the elasticity of the vocal folds

myoelastic-aerodynamic theory

28

Caused by the increase speed of air passing between the vocal folds, is the "sucking" motion of the VF toward one another

Bernoulli effect

29

Describe the mucosal wave

The cover (epithelium) and the superficial lamina propria and the transition move over the vocalis muscle slide and produce a wave

30

The mucosal wave is necessary to produce ________.

vibration- phonation