SLP Praxis 1- Anatomy and Physiology exam 2022/2023 with 100% correct answers
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Course
SLP Praxis 1
Institution
SLP Praxis 1
Parts involved in Respiration
lungs, bronchi, trachea, spinal column, sternum, rib cage
Muscles of Respiration
diaphragm, Abdominals, and Intercostals
Intercostals
11 pairs of internal intercostals pull thorax down and in for exhalation, 11 pairs of external intercostals pull thora...
Parts involved in Respiration - ANSWER-lungs, bronchi, trachea, spinal column, sternum, rib cage
Muscles of Respiration - ANSWER-diaphragm, Abdominals, and Intercostals
Intercostals - ANSWER-11 pairs of internal intercostals pull thorax down and in for exhalation, 11 pairs of
external intercostals pull thorax up and out for inhalation
Diaphragm - ANSWER-muscle at floor of chest cavity that separates abdomen and thorax. Plays major
role in breathing and is almost the only muscle used in passive breathing.
2) aryepiglottic folds: set of rings extending from arytenoids to larynx; separate laryngeal vestibule from
pharynx
3) ventricular folds (false folds): above true VFs; vibrate only at very low frequencies; close to protect
airway
Layers of VFs - ANSWER-1) epithelium: outer layer that makes mucosal cover
2) lamina propria: middle layer
3) vocalis (thyroarytenoid) muscle: body of VFs that provides stability and mass
Myoelastic-Aerodynamic Theory - ANSWER-1) Air flowing out of the lungs is stopped at closed VFs. Once
subglottal pressure is sufficient, VFs are blown apart.
2) Air rushes more quickly through open folds (smaller area) and causes negative pressure that sucks
folds back together.
3) this process is repeated extremely causing a vibratory pattern and phonation
Cortical areas involved in phonation - ANSWER-4 = primary motor cortex
44 = Broca's area
3,1,2 = somatosensory areas
6 = supplementary motor cortex
Natural resonators - ANSWER--cause some frequency components to be dampened and others to be
enhanced
- include: pharynx, nasal cavity, and oral cavity
The pharynx - ANSWER-- 3 parts: laryngopharynx, oropharynx, nasopharynx
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