Question

Voice is high pitched in
(a) Aged persons
(b) Adult males
(c) Boys
(d) Females

Answer 1

Hint: Vocal cords size decides the pitch of voice. In males vocal cords thicker and larger in size whereas in females they are thin, short, and smaller in size. Thicker vocal cords produce low pitched voices.

Complete answer:
The cartilaginous box that is present below the nasopharynx which helps in sound production is called the larynx or voice box. The yellow elastic fibers which connect the thyroid and arytenoid cartilages are called vocal cords or vocal folds. In males, the vocal cords are thicker, longer, and produce low pitch voices, whereas in women and children the vocal cords are usually short and produce high pitch voices.

Additional Information:
 - The wall of the larynx is supported by nine cartilages; they are Thyroid, crinoid, epiglottis, and a pair of corniculate, arytenoid, and cuneiform cartilages.
- A thin leaf of elastic cartilaginous flap attached to the thyroid cartilage to prevent the entry of food into the larynx is called epiglottis.
- Vocal cords or the vocal folds are the yellow elastic fibers that connect thyroid cartilage and arytenoid cartilage.
- For the generation of the human voice, the mechanisms are divided into three parts namely the lungs, the vocal cords, and the articulators.
- To vibrate the vocal cords, the lungs should produce adequate airflow. Laryngeal vocal cords receive enough airflow from the lungs and they vibrate and produce audible pulses.
- Vocal cords size is different in males and females which decides the pitch of voice.
- In females, vocal cords have small folds results in high pitched voice
So, the correct answer is 'females'.

Note: -To fine-tune pitch and tone, the laryngeal muscles adjust the length and tension of the vocal cords.
-Articulators articulate and filter the sound produced from the larynx.
-Sound is produced with the association of vocal cords with articulators.