1960s human vocal cords opening and closing - vocal cord anatomy stock videos & royalty-free footage00:14CU 1960s Human vocal cords opening and closing
black and white animation of the words secondary sex characteristics over illustration of adolescent boy / animation of hair and muscle growth /... - vocal cord anatomy stock videos & royalty-free footage00:441953 Black and white animation of the words secondary sex characteristics over illustration of adolescent boy / animation of hair and muscle growth / shoulders broadening / voice changing / AUDIO
animation depicting the head which as it rotates, sections, revealing the interior median section of the pharynx and nasopharynx. - vocal cord anatomy stock videos & royalty-free footage00:13Animation depicting the head which as it rotates, sections, revealing the interior median section of the pharynx and nasopharynx.
animation depicting a rotation of the head which is sectioned, revealing the interior median section of the pharynx and nasopharynx. - vocal cord anatomy stock videos & royalty-free footage00:06Animation depicting a rotation of the head which is sectioned, revealing the interior median section of the pharynx and nasopharynx.