The pharynx opens into the larynxthrough a slit-like opening calleda)Gulletb)Glottisc)Epiglottisd)NoneCorrect answer is option 'B'. Can you explain this answer?

Question

Answer

Larynx,generally called the voice box or GLOTTIS , it's pathway for air between the pharynx above and the trachea below next see path of air in human then hope u can understand,, External nostrils --->vestibule ---->nasal chamber--->internal nares--->naso pharynx--->pharynx--->**GLOTTIS**-->larynx.

Answer

Glottis is the opening of windpipe which has a cartilaginous flap called epiglottis to prevent entry of food into wind pipe and pharynx is situated just below larynx seperated by this flap.

Answer

Explanation:

The pharynx is a muscular tube that connects the nasal and oral cavities to the larynx and esophagus. It serves as a common pathway for both air and food. The opening from the pharynx into the larynx is known as the glottis.

The larynx:
The larynx, commonly referred to as the voice box, is a structure located in the neck region. It plays a crucial role in the production of sound and serves as a passageway for air between the pharynx and the trachea. The larynx contains the vocal cords, which vibrate to produce sound during speech or singing.

The glottis:
The glottis is the opening between the vocal cords in the larynx. It can be considered as a part of the larynx itself. The vocal cords are two folds of mucous membrane that stretch across the larynx. They are responsible for producing sound when air from the lungs passes through them, causing them to vibrate. The opening and closing of the glottis regulate the airflow and the production of sound.

Relation between the pharynx and the larynx:
The pharynx and the larynx are connected structures in the respiratory and digestive systems. The pharynx opens into the larynx through the glottis. When we swallow, the muscles in the pharynx contract and push the food or liquid into the esophagus, bypassing the opening of the larynx. This prevents food or liquid from entering the airway and ensures that it goes down the correct pathway into the esophagus.

The epiglottis:
The epiglottis is a flap of cartilage located at the base of the tongue, just above the larynx. Its main function is to prevent food and liquid from entering the respiratory system. When we swallow, the epiglottis closes over the opening of the larynx, directing the food or liquid towards the esophagus. This action prevents choking and aspiration.

Therefore, the correct answer to the question is option B) Glottis, as the pharynx opens into the larynx through the glottis. The epiglottis plays a crucial role in protecting the airway during swallowing, but it is not the opening between the pharynx and the larynx.

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