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Muscles of Neck and Head
Actions, Innervations, Blood supply
40
Health Care
Graduate
07/12/2012

Additional Health Care Flashcards

 


 

Cards

Term
Anterior Digastric Muscle
Definition

Depresses mandible, elevates hyoid

 

Digastric fossa mandible to intermediate tendon (greater cornu of hyoid)

 

Mylohyoid br of inferior alveolar n.

(Mandibular n. CNV3)

 

Branches external carotid a.

 

Term
Mylohyoid Muscle
Definition

Elevates floor of oral cavity

 

Mylohyoid line mandible to midline raphe to anterior body hyoid b

 

Mylohyoid br of inferior alveolar n

(Mandibular N, CNV3)

 

Lingual a

(External carotid a)

 

Term
Geniohyoid M.
Definition

Elevates tongue & hyoid b, depresses mandible

 

Inferior Genial Tubercle mandible, anterior body hyoid

 

Ventral ramus C1 (via CNXII)(ansa cervicalis)

 

Lingual a

(External caroitd a)

Term
Masseter
Definition

Elevates, protracts and retracts mandible

 

Angle of mandible to zygomatic arch

 

Masseteric branch of mandibular n.

(CNV3)

 

Masseteric a

(Maxillary ar, ECA)

Term
Medial Pterygoid M
Definition

Elevates mandible, works with same side lateral pterygoid to produce side to side motion of chewing

 

Medial surface of Lateral pterygoid plate & adjacent maxilla to Angle of mandible (interior)

 

N. to medial pterygoid

(Mandibular N, CNV3)

 

Pterygoid br of maxillary ar (ECA)

Term
Sphenomandibular ligament
Definition

Prevents excessive depression

 

Lingula of mandible to spine of sphenoid

 

 

Term
Temporalis M
Definition

Elevates and retracts mandible

 

Coronoid process of mandible to temporal fossa

 

Deep temporal n of mandibular n

(CNV3)

 

Deep temporal a off maxillary a

(ECA)

Term
Lateral Pterygoid M
Definition

Depresses and protracts mandible, works w same side medial pterygoid to produce side to side motion of chewing

 

Pterygoid fossa of condylar ridge of mandible to infratemporal surface of sphenoid, adjacent maxilla

 

Lateral Pterygoid n of mandibular n

(CNV3)

 

Pterygoid A of Maxillary A

(ECA)

Term
Ligamentum Nuchae
Definition

Attaches cervical muscles

 

External occipital protuberance

Term
Sternocleidomastoid
Definition

Flexes, laterally flexes and extends head & neck, contralateral rotation of head

 

Superior nuchal line of occipital bone to lateral aspect of mastoid process to clavicle

 

Accessory N and C1,2(Sensory)

 

Occipital A of ECA

Term
Longus Capitis M
Definition

Flexion of head & neck, ipsilateral rotation

 

Tranverse process of cervical vertebraek to basilar occipital bone

 

Ventral Rami C1,2,3

 

Aortic branches

Term
Splenius Capitis
Definition

Extension, Lateral Flexion and Ipsilateral rotation neck

 

Ligamentum nuchae, mastoid process to cervical and thoracic spinous proccesses

 

Dorsal rami of cervical spinal n

 

Muscular branches of aorta

Term
Longissimus Capitis
Definition

Extension, Lateral flexion and ipsilateral rotation of neck

 

Mastoid process to upper thoracic transverse processes

 

Dorsal rami of spinal n

 

Muscular branches of aorta

Term
Stylohyoid
Definition

Retracts and elevates hyoid

 

Styloid process to greater cornu of hyoid

 

Stylohyoid br of facial n (CN VII)

 

Facial and occipital a (off ECA)

Term
Buccinator
Definition

Compresses cheek

 

Alveolar processes of maxilla and mandible, pteryoid hamulus & pterygomandibular raphe to buccal angle

 

Buccal branch of facial n (CN VII)

 

Buccal br of maxillary ar (ECA)

 

 

Term
Depressor Anguli Oris
Definition

Depresses buccal angle laterally

 

Mandible to buccal angle (corner mouth)

 

buccal and mandibular br of facial n (CN VII)

 

facial ar.

Term
Frontalis M
Definition

Elevates eyebrows and nose (surprise look)

Protracts scalp

 

Superficial fascia eyebrows to epicranial aponeurosis

 

Temporal branch of facial n (CNVII)

 

Opthalmic A (ICA)

Term
Levator labii superioris
Definition

Raises and everts lips

 

Inferior orbital margin to lateral aspect of lip

 

Buccal and zygomatic br of facial n (CNVII)

 

Facial ar

Term
Nasalis
Definition

Compress and Widen the nasal aperature

 

Lateral and inferior maxilla to nasal notch to bridge of nose

 

Buccal branch of facial n

 

facial ar

Term
Orbicularis Oculi
Definition

Palpebral sphinchter (close eye)

 

Orbital margin and medial palpebral lig to superficial fascia of eyelid

 

temporal and zygomatic br of facial n (CNVII)

 

Opthalmic Ar (ICA)

Term
Orbicularis Oris
Definition

Oral sphinchter (close mouth)

 

Angle of mouth to superficial fascia of upper lip

 

Buccal and mandibular br of facial n (CNVII)

 

Facial Ar

Term
Platysma
Definition

Wrinkles the anterior nuccal skin

 

Lower mandible to superficial fascia of skin of neck

 

Cervical br of facial n (CNVII)

 

 

Term
Zygomaticus Major
Definition

Raises buccal angle --> SMILE

 

Zygomatic bone to to angle of mouth

 

Buccal and zygomatic br of facial n (CNVII)

 

Facial ar

Term
Inferior Oblique
Definition

Elevation, abduction and extorsion of eye

 

Inferolateral, posterior sclera to maxilla lateral to nasolacrimal groove

 

Inf ramus of oculomotor n (CNIII)

 

Opthalmic ar

Term
Inferior Rectus
Definition

Depresses, adducts and extorsion of eye

 

Common tendinous ring to inferior sclera

 

Inferior ramus of oculomotor n (CNIII)

 

Opthalmic artery

 

Term
Levator Palpebrae Superioris
Definition

Elevation of upper eyelid

 

Inferior lesser wing of sphenoid to skin of upper lid

 

Superior ramus of Oculomotor n (CN III)

 

Opthalmic ar

Term
Medial Rectus
Definition

Adducts Eye

 

Common tendinous ring to medial sclera

 

Inferior ramus of oculomotor n (CN III)

 

Opthalmic ar

Term
Superior Rectus
Definition

Elevates, adducts and intorsion of eye

 

Common tendinous ring to superior sclera

 

Superior ramus of oculomotor n (CN III)

 

Opthalmic ar

Term
Lateral Rectus
Definition

Abducts eye

 

Comon tendinous ring to lateral sclera

 

Abducens n (CN V!)

 

Opthalmic ar

Term
Superior oblique
Definition

Depresses, Abducts and intorsion of eye

 

Superomedial, posterior aspect orbit to superolateral aspect of sclera

 

Trochlear n (CN IV)

 

Opthalmic ar

Term
Posterior Digastric
Definition

Depresses mandible, elevates hyoid

 

Mastoid process to intermediate tendon (hyoid)

 

Facial n (Posterior Digastric br) [CN VII]

 

External carotid ar

Term
Longus Colli
Definition

Flexion, Lateral flexion and ipsilateral rotation of neck

 

Cervical vertebral bodies to cervical vertebral bodies

 

Ventral rami of cervical spinal n (C2 -7)

 

Branches of aorta

Term
Omohyoid
Definition

Depression of hyoid

 

Superior border scapula to intermediate tendon to lateral aspect hyoid bone

 

Ansa cervicalis

 

Inferior and Superior thyroid artery

Term
Anterior Scalene
Definition

Elevate 1st rib, lateral flexion and contralateral rotation

 

Scalene tubercle of 1st rib to anterior tubercles of cervical vertebrae

 

Lower ventral rami of cervical spinal n

 

Inferior thyroid ar

Term
Middle Scalene
Definition

Elevation 1st rib, lateral flexion and contralateral rotation

 

1st rib to transverse process of cervical vertebrae

 

Lower ventral rami of cervical spinal n

 

Ascending cervical ar

Term
Posterior scalene
Definition

Elevation 1st rib, lateral flexion and contralateral rotation

 

Cervical transverse processes to 2nd rib

 

Ventral rami of cervical spinal n

 

Ascending cervical ar.

Term
Sternohyoid
Definition

Depresses hyoid

 

Posterior clavicle and manubrium to inferior hyoid

 

Ansa cervicalis

 

Inferior and superior thyroid artery

Term
Sternothyroid
Definition

Depresses thyroid cartilage (elevated larynx)

 

Posterior manubrium and costal cartilage to thyroid lamina

 

Ansa cervicalis

 

Inferior and superior thyroid artery

Term
Thyrohyoid
Definition

Thyroid lamina to greater horn of hyoid bone

 

Depression of hyoid, elevation of thyroid cartilage

 

Ventral ramus C1 via hypoglossal n

 

Inferior and superior thyroid ar

Term
Semispinalis capitis
Definition

Extension and contralateral rotation head

 

Upper thoracic and cervical transverse process to occipital bone between nuchal lines

 

Dorsal rami of cervical spinal n

 

 

 

 

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