Muscles of Neck and Vertebral Column

Description

Muscles attached to neck and vertebral column
Mansi Trikha
Flashcards by Mansi Trikha, updated more than 1 year ago
Mansi Trikha
Created by Mansi Trikha over 6 years ago
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Resource summary

Question Answer
Suprahyoid elevates hyoid
Digrastic Origin: Lower margin of mandible Insertion: Hyoid Action: Elevates hyoid (Suprahyoid)
Stylohyoid Origin: Styloid process of temporal bone Insertion: Hyoid Action: Elevates hyoid (Suprahyoid)
Mylohyoid Origin: Medial aspect of mandible
Geniohyoid Origin: Inner surface of mandible Insertion: Hyoid Action: Superior and anterior movement of hyoid
Infrahyoid depresses hyoid
Omohyoid Origin: Scapula Insertion: Hyoid Action: Depresses hyoid
Sternohyoid Origin: Manubrium Insertion: Hyoid
Thyrohyoid Origin: Thyroid cartilage Insertion: Hyoid Action: Depresses hyoid
Sternothyroid Origin: Manubrium and clavicle Insertion: Thyroid cartilage Action: Pulls thyroid cartilage inferiorly
Sternoclediomastoid Origin: Manubrium and clavicle Insertion: Temporal bone Action: Prime mover - head flexion (Anterolateral)
Scalenes Origin: Cervical vertebrates (transverse process) Insertion: First two ribs Action: Elevates ribs, flex & rotate neck
Splenius (capitis and cervicis) Origin: Spinous process of C7-T6 Insertion: Temporal and occipital bones (capitis) ; C2-C4, transverse process (cervicis) Action: Extend head (group muscles), rotate & bend head (individual muscles) [intrinsic superficial muscles of back]
iliocostalis Origin: iliac crests (lumborum); inferior 6 ribs (thoracis) ; ribs 3-6 (cervicis) Insertion: Angles of ribs (L&T) ; C6-C4 Action: extend vertebral column, bend vertebral column when acting on one side
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