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Pysiological-acousticis
is 
a 
branch of acoustics that studies the stru
cture and branch function of the sound-
detecting and sound-
forming organs of man andanimals. 
33.
34. is a type of vowel sound that 
occurs in most spoken languages, 
represented 
in 
the International 
Phonetic Alphabet by the symbol. 
30. 
Obstruent
is a speech sound such as [k], [d ʒ], 
or [f] that 
is 
formed 
by 
obstructing
airflow. 
31. 
Sonorant or Resonant
is a speech sound that is produced with 
continuous, non-turbulent airflow in 
the vocal tract; these are the manners 
of 
articulation 
that 
are 
most 
often voiced in the world‘s languages. 
32. 
Mid vowels
. 
The defining characteristic of a mid 
vowel is that the tongue is positioned 
midway between an open vowel and 
a close vowel.
33. 
Phonology
is a branch of linguistics concerned 
with the systematic organization 
of sounds in languages. 
34. 
Linguistic prosody
is concerned with those elements of 
speech that are not individual 
phonetic segments (vowels 
and 

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156 
consonants) 
but 
are 
properties 
of syllables and larger units of speech. 
35. 
The nasal cavity
Each cavity is the continuation of one 
of the two nostrils. 
36. 
Morphology
is the main part of grammar that 
studies parts of speech their categories 
and word systems. 
37. 
Morphological le
vel 
studies the smallest meaningful unit of 
a language – morpheme. The term 
m o r p h e m e is derived from Greek 
morphe ‗form‘ + -eme. The Greek 
suffix -erne has been adopted by 
linguists to denote the smallest 
significant 
or 
d i s t i n c t i v e u n i t .
38.