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Head & Neck Sheet

Every head and neck structure on one sheet - muscles of mastication and expression, the skull, the cranial nerves, and the vessels of the neck.

44 rows · AnatoMemory · sample of the first 3 rows of each section (12 of 44)

Muscles - Head & Neck Sheet. Every head and neck structure on one sheet - muscles of mastication and expression, the skull, the cranial nerves, and the vessels of the neck.
Muscle	Origin	Insertion	Action	Innervation	Blood supply
Anterior scalene	Transverse processes of C3-C6	Scalene tubercle of the first rib	Elevates the first rib in inspiration; laterally flexes and rotates the neck	Anterior rami of C4-C6	Ascending cervical / inferior thyroid arteries
Buccinator	Alveolar processes of the maxilla and mandible and the pterygomandibular raphe	Angle of the mouth, blending with orbicularis oris	Compresses the cheek against the teeth; keeps the food bolus between the teeth; aids blowing and sucking	Buccal branch of the facial nerve (CN VII)	Facial / buccal arteries
Digastric	Anterior belly: digastric fossa of the mandible. Posterior belly: mastoid notch of the temporal bone	Intermediate tendon to the hyoid bone (via a fibrous sling)	Elevates the hyoid bone; depresses and retracts the mandible (opens the jaw)	Anterior belly: mylohyoid nerve (CN V3). Posterior belly: facial nerve (CN VII)	Facial / lingual / occipital arteries

Bones - Head & Neck Sheet. Every head and neck structure on one sheet - muscles of mastication and expression, the skull, the cranial nerves, and the vessels of the neck.
Bone	Bone type	Key landmarks	Articulations
Ethmoid bone	Irregular	Cribriform plate; Crista galli; Perpendicular plate; Superior and middle nasal conchae; Ethmoidal air cells	Frontal; Sphenoid; Nasal, lacrimal, maxilla, palatine, vomer bones
Frontal bone	Flat	Squamous (forehead) part; Supraorbital margins and notches/foramina; Glabella; Frontal sinuses; Orbital plates	Parietal bones (coronal suture); Sphenoid; Ethmoid; Nasal, lacrimal, maxilla, zygomatic bones
Hyoid bone	Irregular (U-shaped)	Body; Greater horns (cornua); Lesser horns (cornua)	None (suspended by muscles and ligaments)

Nerves - Head & Neck Sheet. Every head and neck structure on one sheet - muscles of mastication and expression, the skull, the cranial nerves, and the vessels of the neck.
Nerve	Roots	Course	Motor	Sensory
Abducens nerve (CN VI)	Motor (cranial nerve)	Emerges at the pontomedullary junction, runs a long course up the clivus, through the cavernous sinus and superior orbital fissure	Lateral rectus muscle (abducts the eye)	No cutaneous sensory territory - this nerve is purely motor.
Accessory nerve (CN XI)	Motor (spinal root C1-C5/C6)	The spinal root ascends through the foramen magnum, joins the cranial root briefly, exits the jugular foramen, and crosses the posterior triangle of the neck	Sternocleidomastoid and trapezius	No cutaneous sensory territory - this nerve is purely motor.
Facial nerve (CN VII)	Motor, sensory, and parasympathetic (cranial nerve)	Passes through the internal acoustic meatus, the facial canal (giving branches), and exits the stylomastoid foramen to branch across the face (parotid plexus)	Muscles of facial expression, stapedius, stylohyoid, and posterior belly of digastric	Taste from the anterior two-thirds of the tongue (via chorda tympani); parasympathetic to lacrimal, submandibular, and sublingual glands

Vessels - Head & Neck Sheet. Every head and neck structure on one sheet - muscles of mastication and expression, the skull, the cranial nerves, and the vessels of the neck.
Vessel	Type	Origin	Branches / tributaries	Course	Supplies	Drains
Common carotid artery¹	Elastic/muscular artery	Right: brachiocephalic trunk. Left: aortic arch	Internal carotid artery; External carotid artery	Ascends in the carotid sheath (with the internal jugular vein and vagus nerve) and bifurcates at about the C4 level	Head and neck	not recorded
External carotid artery¹	Muscular artery	Common carotid artery	Superior thyroid; Ascending pharyngeal; Lingual; Facial; Occipital; Posterior auricular; Maxillary; Superficial temporal	Ascends from the carotid bifurcation through the parotid gland, where it divides into its two terminal branches	Face, scalp, neck viscera, and dura	not recorded
Facial artery¹	Muscular artery	External carotid artery	Inferior and superior labial; Lateral nasal; Angular artery (terminal)	Arises in the neck, loops over the submandibular gland, crosses the mandible anterior to masseter, and ascends tortuously to the medial canthus	Superficial face, lips, and nose	not recorded

Built from the head and neck records of the AnatoMemory reference library.

Every structure on this sheet also has its own free reference page - browse the full library.