Pharyngeal muscles :- inferior pharyngeal muscle :- muscle details :- the thickest of the three constrictors, arises from the sides of the cricoid and thyroid cartilage . origin :- cricoid and thyroid cartilage . insertion :- pharyngeal raphe . nerve supply :- external laryngeal branch of the vagus . action… Continue reading
Longus colli muscle :- Muscle details :- situated on the anterior surface of the vertebral column, between the atlas and the third thoracic vertebra. Origin :- Transverse processes of C-3 – C-6 . Insertion :- Anterior arch of atlas . Nerve supply :- C2, C3, C4, C5, C6 . Action… Continue reading
Cricoarytenoid posterior muscles :- Muscle details :- small, paired muscles that extend from the posterior cricoid cartilage to the arytenoid cartilages in the larynx. Origin :- posterior part of the cricoid . Insertion :- muscular process of the arytenoid cartilage . Nerve supply :- recurrent laryngeal branch of the vagus… Continue reading
Palatopharyngeus muscle :- muscle details :- a small muscle in the roof of the mouth. origin :- Palatine aponeurosis and hard palate . Insertion :- Upper border of thyroid cartilage (blends with constrictor fibers). Nerve :- Pharyngeal branch of vagus nerve . Actions :- Pulls pharynx and larynx upward .
Palatoglossus muscle :- muscle detailed :- Palatoglossus Styloglossus Genioglossus Hyoglossus 24 a small fleshy fasciculus, narrower in the middle than at either end, forming, with the mucous membrane covering its surface, the glossopalatine arch. origin :- Palatine aponeurosis . Insertion :- Tongue. Nerve :- Vagus nerve (via pharyngeal branch to… Continue reading
Palatine uvula muscle:- muscle details :- a conic projection from the posterior edge of the middle of the soft palate, composed of connective tissue containing a number of racemose glands, and some muscular fibers (musculus uvulae). It also contains a large number of serous glands that produce a lot of… Continue reading
Tensor veli palatini muscle :- muscle details :- a broad, thin, ribbon-like muscle in the head that tenses the soft palate. origin :- Medial pterygoid plate of the sphenoid bone (scaphoid fossa) . Insertion :- Palatine aponeurosis . Nerve :- Medial pterygoid of mandibular nerve (V3). Actions :- Tension of… Continue reading
Levator veli palatini :- muscle details :- the elevator muscle of the soft palate in the human body . origin :- temporal bone, Eustachian tube . Insertion :- palatine aponeurosis . Nerve :- Pharyngeal Branch of Vagus (CN X). Actions :- elevates soft palate .
Levator labii superioris alaeque nasi muscle :- muscle details :- translated from Latin, the “lifter of both the upper lip and of the wing of the nose”. origin :- Nasal bone . Insertion :- Nostril and upper lip . Nerve :- Buccal branch of facial nerve . Actions :- Dilates… Continue reading
Oblique muscles :- Superior oblique muscle :- muscle details :- 9549407 – muscles of the eye, eps8 a fusiform muscle originating in the upper, medial side of the orbit (i.e. from beside the nose) which abducts, depresses and internally rotates the eye. It is the only extraocular muscle innervated by… Continue reading