أسئلة الـ Pharynx (ريتين ثانية أناتومي)

The pharynx is a muscular tube that connects the nasal and oral cavities to the larynx and esophagus.

The pharynx is supplied by various arteries, including the ascending pharyngeal artery, superior laryngeal artery, dorsal lingual artery, ascending palatine and tonsillar arteries, greater palatine and pharyngeal arteries.

The longitudinal group of muscles in the pharynx includes the stylopharyngeus, salpingopharyngeus, and palatopharyngeus, aiding in swallowing.

The constrictors of the pharynx include the superior, middle, and inferior constrictors, which narrow the pharynx during swallowing.

The pharyngeal plexus, composed of the vagus and accessory nerves, supplies motor innervation to the pharynx, except for the stylopharyngeus, which is innervated by the glossopharyngeal nerve.

The nasopharynx, oropharynx, and laryngopharynx are the three parts of the pharynx, each with its own unique functions and location.

Sensory innervation of the pharynx is provided by the maxillary nerve for the nasopharynx, the glossopharyngeal nerve for the oropharynx, and the vagus nerve for the laryngopharynx.

The autonomic nervous system also innervates the pharynx. The sympathetic system, originating from the superior cervical sympathetic ganglion, and the parasympathetic system, arising from the facial nerve, regulate its function.

The part of the pharynx behind the laryngeal cavity, located at the level of vertebrae C4, C5, and C6. It is bounded laterally by the middle and inferior constrictor muscles.

A fold of tissue in the nasopharynx, located near the opening of the Eustachian tube, that helps to regulate pressure in the middle ear.

A collection of lymphatic tissue located in the nasopharynx, often referred to as 'adenoids'.

The main arterial supply to the palatine tonsil is the facial artery, which provides oxygenated blood to the tonsil.

The glossopharyngeal nerve supplies the palatine tonsil, allowing it to receive sensory information and motor control.

The laryngo-pharynx is a section of the pharynx behind the laryngeal cavity, situated at the level of vertebrae C4, C5, and C6. It's flanked by the middle and inferior constrictor muscles.

The auditory tube orifice, a passageway that connects the middle ear to the nasopharynx, is found at the level of the inferior concha within the nasopharynx.

The salpingo-pharyngeal fold is a structure within the nasopharynx that helps regulate pressure in the middle ear.

The palatine tonsil, a part of the Waldyer ring, is located in the tonsillar fossa of the oropharynx, sandwiched between the palatoglossus muscle, palatopharyngeus muscle, and superior constrictor muscle.

The facial artery is the primary blood supplier to the palatine tonsil.

The pharyngeal plexus, composed of the vagus and accessory nerves, supplies motor innervation to the pharynx, except for the stylopharyngeus muscle, which is innervated by the glossopharyngeal nerve.

The nasopharynx, oropharynx, and laryngopharynx are three parts of the pharynx, each located at a specific level in the throat and performing unique functions.

It receives sensory input from the maxillary nerve for the nasopharynx, the glossopharyngeal nerve for the oropharynx, and the vagus nerve for the laryngopharynx.

The superior, middle, and inferior constrictors are three muscles that constrict or narrow the pharynx, helping to propel food towards the esophagus during swallowing.

The stylopharyngeus, salpingopharyngeus, and palatopharyngeus form the longitudinal group of muscles that help elevate the pharynx and larynx during swallowing, aiding in food movement down the throat.

The sympathetic system from the superior cervical ganglion and the parasympathetic system from the facial nerve regulate functions like blood vessel constriction and glandular secretions, influencing overall pharyngeal activity.

The pharynx lies behind the nasal cavity, at the level of the first cervical vertebra (C1), and is bounded laterally by the superior constrictor muscle, its main function is to connect the nasal cavity to the oropharynx.