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Anatomy MidTerm #1

Anatomy of upper extremities & back

QuestionAnswer
Alar Ligament? Attaches Dens of axis to occipital bone of skull
Transverse atlantal ligament? Attaches at both superior articular facets of atlas. Connects atlas and axis together.
Orbicularis oris Closes mouth
Orbicularis oculi Closes eyes
Buccinator Holds cheek to teeth during chewing
Masseter Closes Jaw
Temporalis Closes Jaw
Genioglossus Protracts tongue
Hyoglossus Retracts tongue
Styloglossus Draws up sides of tongue
Superior Rectus Rotation of eyeball
Inferior Rectus Deppression, lateral rotation, extortion of eye
Lateral Rectus Lateral rotation of eye
Medial rectus Medial rotation of eye
Superior Oblique Rotates eye
Inferior Oblique Lateral rotation and elevation of eye
Atlanto-Axial Joint Articulation between Atlas(C1) & Axis(C2). Allows Diarthrotic, uniaxial rotation of head
Intervertebral Joints Articulation between adjacent vertebral bodies. Amphiarthrotic, minimal movement
Facets Between articular processes. Allow diarthrotic and gliding movements
Sternocostal Joints Articulation between the sternum and ribs 2-7. Allows diarthrotic and gliding movements
Costovertebral Joints Articulation between ribs and vertebrae. Allows diarthrotic and gliding movements
Costotransverse Joints Articulation between ribs and vertebrae. Allows gliding during breathing.
Sacroiliac Joint Articulation between Sacrum and Ilium. Allows diarthrotic in children and amphiarthrotic in adults
Anterior Longitudinal Ligament Attaches vertebrae. Runs from Sacrum to Occipital bone. Limits hyperextension of spine
Posterior Longitudinal Ligament Attaches vertebrae. Runs from Axis(C2) to Sacrum. Limits hyperflexion of spine
Supraspinous Ligament Attaches vertebrae on Spinous Processes. Runs from C7 to Sacrum. Limits flexion of spine
Interspinous Ligament Attaches vertebrae between Spinous Processes. Provides a place for muscles to attach
Ligamentum Flavum (Ligamentum nuchae) Attaches adjacent vertebrae lamina to lamina. Helps with posture, limits flexion
Intertransverse Ligament Attaches at the transverse processes in spine. Helps to hold vertebrae together and in line
Sternocleidomastoid Originates on the Clavicle and Sternum. Inserts at the mastoid process. Allows for neck rotation and flexion
Scalenes Anterior, Middle, & Posterior. Originates on C3-C7. Inserts on 1st and 2nd ribs. Allows for lateral flexion of neck
Splenius Originates from ligamentum nuchae. Inserts at mastoid process. Allows neck rotation and flexion
Upper Trapezius Originates at external occipital protuberance. Inserts at spine of scapula. Allows for scapular elevation, neck extension, neck rotation and lateral flexion
Rectus Abdominus Originates at pubic crest and symphysis. Inserts at cartilage of ribs 5-7 and xiphoid process. Allows for flexion and rotation of lumbar region
External Oblique Originates at inferior 8 ribs. Inserts at iliac crest and Linea alba. Allows for trunk flexion, rotation and compression
Internal Oblique Originates at iliac crest and inguinal ligament. Inserts at cartilage of last 3-4 ribs, linea alba, and pubis. Allows for abdomen compression and trunk flexion, lateral trunk flexion and rotation
Transverse Abdominus Originates at iliac crest, inguinal ligament, and cartilage of last 6 ribs. Inserts at xiphoid process and linea alba. Allows for abdomen compression
Iliocostalis Originates at lower 6 ribs and sacrum. Inserts at upper 6 ribs and C4-C6. Allows for extension of spine and helps with posture.
Longissimus Originates at vertebral transverse processes of lower 9 ribs. Inserts at mastoid process. Extends vertebral column.
Spinalis Originates at L1-L2 and ligamentum nuchae. Inserts at upper thoracic vertebrae and axis. Extends vertebral column.
Quadratus Lumborum Originates at posterior iliac crest. Insertst at medial half of 12th rib and lumbar transverse processes. Fixes 12th rib to stabilize diaphragm.
Multifidi Originates at sacrum. Inserts at Transverse processes. Stabilizes joints in spine
Rotatores Originates at superior/posterior transverse processes of spine. Inserts at Lamina of spine. They are for postural control.
Semispinalis Originates at transverse processes of T1-T6. Inserts at sides of spinous processes C2-C5. Extend at rotate neck.
Interspinales Originate at side of apex of spinous process of T12, T2, and T3. Insert at side of apex of spinous process of T11, T2, and T1. Monitor movements and position of spine.
Intertransversarii Originate at superior border of transverse process of lumbar vertebrae. Insert at inferior border of transverse processes of lumbar vertebrae. Monitor movements and position spine.
External Intercostals Originates at inferior border of superior rib. Inserts at Superior border of adjacent inferior rib. These stiffen chest and move ribs.
Internal Intercostals Same as External
Diaphragm Originates at inner surface of the xiphoid process and costal cartilage of ribs.
Sternoclavicular Joint Articulation between sternum and clavicle. Allows multiaxial movements
Acromioclavicular Joint Articulation between acromion process of scapula and clavicle. Allows diarthrotic, gliding and rotating of scapula on clavicle
Glenohumeral Joint Articulates between scapula and Humerus. Most movements... Diarthrotic, multiaxial, flexion, extension...
Scapulothoracic Joint Articulates between scapula and ribs. Allows elevation of scapula.
Coracoacromial Ligament Attaches at coracoid process and acromion process. Stabilizes shoulder joint
Acromioclavicular Ligament Attaches at acromion process and clavicle. Secures shoulder joint
Created by: 1343152850
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