Lab Practical 1 Flashcards
(124 cards)
Trapezius origin and insertion
- Origin: Occipital protuberance, Ligamentum nuchae, Spinous processes of C7-T12
- Insertion: (Upper fibers) - Lateral clavicle
(Middle fibers) - Spine of scapula
(Lower fibers) - Root of spine of scapula
Trapezius action and nerve supply
- Action: (Upper fibers) - Elevation of scapula, Upward Rotation of scapula
(Middle fibers) - Retraction of scapula
(Lower fibers) - Depression of scapula, Upward rotation of scapula - Nerve Supply: spinal accessory nerve (CNXI)
Rhomboid Minor origin and insertion
- Origin: Spinous processes of C7-T1
- Insertion: Root of spine of scapula
Rhomboid minor action and nerve supply
- Action: Retraction of scapula, Downward rotation of scapula (look at glenoid for hint at movement)
- Nerve supply: dorsal scapular nerve
Rhomboid major origin and insertion
- Origin: Spinous processes of T2-T5
- Insertion: Vertebral border of scapula inferior to root of spine
Rhomboid major action and nerve supply
- Action: Retraction of scapula, Downward rotation of scapula (look at glenoid for hint at movement)
- Nerve supply: dorsal scapular nerve
Levator Scapulae origin and insertion
- Origin: Transverse processes of C1-C4
- Insertion: vertebral border of scapula superior to root of spine
Levator Scapulae action and nerve supply
- Action: elevation of scapula, downward rotation of scapula
- Nerve supply: dorsal scapular nerve
Latissimus Dorsi origin and insertion
- Origin: Spinous processes of T7-T12, Lower ribs, Thoracolumbar aponeurosis, Iliac crest
- Insertion: Bicipital groove of humerus
Latissimus Dorsi action and nerve supply
- Action: Extension of shoulder, Internal rotation of shoulder, Adduction of shoulder
- nerve supply: thoracodorsal nerve
Serratus posterior superior origin and insertion
- Origin: ligamentum nuchae, spinous processes of C7-T3
- Insertion: superior border of ribs 2-4
Serratus poster superior action and nerve supply
- action: elevates ribs
- nerve supply: intercostal nerves T1-T4
Serratus poster inferior origin and insertion
- origin: spinous processes of T11-L2
- insertion: inferior borders of ribs 9-12
Serratus poster inferior action and nerve supply
- action: depresses ribs
- nerve supply: intercostal nerves T9-T12
Iliocostalis origin and insertion
- origin: Posterior ribs, Thoracolumbar aponeurosis, Iliac crest, Sacrum
- insertion: Transverse processes of cervical vertebrae, Posterior ribs
Iliocostalis action and nerve supply
- action: Extension of vertebral column, Lateral flexion of vertebral column
- nerve supply: posterior rami of spinal nerves
Longissimus origin and insertion
- origin: Transverse processes of cervical and thoracic vertebrae, Thoracolumbar aponeurosis, Iliac crest, Sacrum
- insertion: Mastoid process, Transverse processes of cervical and thoracic vertebrae
Longissimus action and nerve supply
- action: Extension of vertebral column, Lateral flexion of vertebral column
- nerve supply: posterior rami of spinal nerves
spinalis origin and insertion
- origin: Ligamentum nuchae, Spinous processes of cervical, thoracic, and lumbar vertebrae
- insertion: Occipital bone, Spinous processes of cervical and thoracic vertebrae
spinalis action and nerve supply
- action: Extension of vertebral column, Lateral flexion of vertebral column
- nerve supply: posterior rami of spinal nerves
Rectus capitus posterior major origin and insertion
- origin: spinous process of axis
- insertion: occipital bone
Rectus capitus posterior major action and nerve supply
- action: Extension of atlanto-occipital joint, Ispilateral rotation at the atlanto-axial joint
- nerve supply: posterior ramus of spinal nerve C1
Rectus capitus posterior minor origin and insertion
- origin: posterior tubercle of atlas
- insertion: occipital bone
Rectus capitus posterior minor action and nerve supply
- action: extension of Atlanto-occipital joint
- nerve supply: posterior ramus of spinal nerve C1