Afferent and Efferent Limbs of Cough Reflex, Nerves involved?
Regarding Posterior Communicating Artery what is more appropriate?
The posterior communicating artery arises from the posterior aspect of the internal carotid artery. It passes backward above the oculomotor nerve and anastomoses with the posterior cerebral artery, forming the circulus arteriosus or the circle of Willis around the interpeduncular fossa. The posterior communicating artery connects the internal carotid artery, anterior cerebral and middle cerebral arteries, and the posterior cerebral artery with each other.
Muscle which opens Auditory Tube?
Tensor veli palatini is a broad ribbon like muscle that tenses the soft palate which during swallowing, prevents food entry to the nasopharynx. It lies lateral and anterior to the levator veli palatini. It arises from the pterygoid process as well as the spine of the sphenoid bone. As it also takes some of its origin from the auditory tube, it is the main muscle which opens it upon contraction.
Structure passing between Hypoglossus and Genioglossus Muscles?
Common Nerve Injured during Tonsillectomy?
The glossopharyngeal nerves are damaged during removal of the tonsils from the tonsillar fossa
Geniculate Ganglion is?
The geniculate ganglion contains special sensory neuronal cell bodies for taste, from fibers coming up from the tongue through the chorda tympani and from fibers coming up from the roof of the palate through the greater petrosal nerve.
Parotid duct pierces which Muscle?
The buccinator muscle is pierced by the parotid duct (Stenson's duct) after it crosses the masseter muscle and turns medially at the anterior border of the muscle to open in the oral cavity into a small papilla opposite the maxillary second molar.
Posterior communicating artery connects?
Level of Common Carotid Bifurcation?
The common carotid artery ends where it bifurcates into internal and external branches, between the hyoid bone and the thyroid cartilage, between C3 and C4. Note that: • 67% of bifurcations occur cephalad of the thyroid cartilage at C4 •20% appear at the level of the hyoid bone, approximately C3.
Sensory Nerve to Larynx, inferior to vocal cords?
Inferior to the vocal cords, sensory innervation is all provided by the recurrent laryngeal nerves.
Structure passing between Middle and Anterior Scalene is?
The brachial plexus and subclavian artery pass between the anterior and middle scalene muscles. This provides an important anatomical landmark in anaesthetics for performing an interscalene block.
Major feature of Cervical Vertebra?
The presence of transverse foramina and bifid spines are features of cervical vertebrae in normally developed individuals.
Orbit contains all Except?
Contents: The eyeballs, Extra-ocular muscles, Eyelids optic, oculomotor, trochlear, trigeminal and abducens nerves. The eye receives blood primarily from the ophthalmic artery. Venous drainage is via the superior and inferior ophthalmic veins.
Site of Postganglionic cells that elicit constriction of Pupil?
Abductor of Vocal Cords?
Muscle which Retracts Mandible?
The posterior fibers of the temporalis also retract the mandible.
Regarding parathyroid gland, which one is correct?
Parathyroid gland is Supplied by superior and Inferior thyroid arteries.
Location of Superior Parathyroid gland in relation to Inferior thyroid artery and Recurrent laryngeal nerve is?
Arterial supply of Parathyroid Gland is?
Parathyroid Gland receives its Blood Supply from Both Superior and inferior Thyroid Arteries.
Which is not content of Posterior Triangle?
Nerves: The main contents are nerves: The three trunks of the brachial plexus. Four cutaneous branches of cervical plexus. lesser occipital, great auricular, transverse cervical supraclavicular nerves. Spinal accessory. Arteries: 3rd part of subclavian artery. Suprascapular artery. Transverse cervical artery. Occipital artery. Veins: Subclavian vein. External jugular vein. Muscle: Inferior belly of omohyoid muscle.
Not a branch of Facial Nerve?
he mental nerve is one of the branches of the inferior alveolar nerve (branch of the mandibular nerve)
Termination of Thoracic Duct?
Posterior communicating artery a branch of?
The posterior communicating artery (PComm) is a branch of the internal carotid artery that participates in the cerebral arterial circle of Willis.
Inferior Nasal Meatus receives?
The inferior meatus, which lies between the inferior concha and the palate, receives the termination of the nasolacrimal duct.
Safety Muscle of Tongue?
Genioglossus is called as the safety muscle of tongue because genioglossus helps in protruding the tongue. It keeps the tongue protruded. If the person falls unconscious or if you observe an epileptic attack, then the person's tongue may fall back due to temporary loss of motor control on tongue muscle. So, whenever you observe such a case, then keep the tongue protruded by a handkerchief or by hand as if the tongue falls back, obstruction to the respiratory tract occurs and death of the person may occur.
Skin over upper lateral Eyelid is Supplied by?
Lacrimal nerve runs along the lateral rectus muscle to the lacrimal gland and supplies the skin over the lateral eyelid and brow.
External Jugular Vein is formed by?
The external jugular vein (EJV) is formed by the union of posterior division of retromandibular vein and posterior auricular vein. The anterior division of the retromandibular vein combines with facial vein to form common facial vein. The EJV is used as a venous manometer and for catheterization.
Innervation of Cricothyroid Muscle?
The external laryngeal nerve is the smaller, external branch. It descends on the larynx, beneath the sternothyroid muscle, to supply the cricothyroid muscle. The external branch functions to tense the vocal cords by activating the cricothyroid muscle, increasing pitch.
Regarding Parathyroid gland, true is?
The pretracheal fascia has two components which are continuous layers of fascia. A cervical layer that ensheathes cervical viscera including the larynx/trachea, pharynx/esophagus, thyroid and parathyroid glands, and then a muscular layer which ensheathes the infrahyoid muscles.
Structure passing through Stylomastoid Foramen?
The facial nerve exits the skull from the stylomastoid foramen and passes obliquely inferiorly and laterally until it enters the parotid gland. The common facial divisions of the nerve are the temporal, zygomatic, buccal, marginal mandibular, and cervical divisions.
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