Muscles Flashcards
Suprahyoid names
Digastric, mylohyoid, geniohyoid and stylohyoid.
Infrahyoid names
Sternohyoid, sternothyroid, thyrohyoid and omohyoid.
Sternohyoid distinguishing features
Run sternum to hyoid, rectangular and fairly large.
Sternothyroid distinguishing features
Run sternum to thyroid cartilage, somewhat bubbled. Sits inferior to thyrohyoid.
Thyrohyoid distinguishing features
Run thyroid cartilage to hyoid, somewhat bubbled. Sits superior to sternothyroid.
Omohyoid distinguishing features
Runs scapula to hyoid. Long and narrow.
Digastric distinguishing features
2 bellies. Connects to mastoid process.
Geniohyoid distinguishing features
Fairly short and narrow. Runs hyoid to chin.
Mylohyoid distinguishing features
Broad. Runs hyoid to the underside of the mandible. each side is triangular.
Stylohyoid distinguishing features
Fusiform, runs from styloid process to mandible.
Posterior sub-occipital muscles
Rectus capitis posterior major and minor, obliques capitis superior and inferior
Anterior sub-occipital muscles
Rectus capitis lateralis and anterior.
Rectus capitis posterior major origin
Spinous process of C@
Rectus capitis posterior major insertion
Lateral portion of the nuchal line.
Rectus capitis posterior major actions
Bilaterally extends the head. Unilaterally side bends and rotates the head to the same side.
Rectus capitis posterior minor origin
Spinous process of C1
Rectus capitis posterior minor insertion
Lateral portion of the nuchal line.
Rectus capitis posterior minor actions
Bilaterally extend the head.
Obliques capitis superior origin
Transverse process of C1