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34 Cards in this Set
- Front
- Back
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Abdominal Muscles: (MEDIAL): |
Rectus Abdominis |
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Abdominal Muscles: (LATERAL): |
External Oblique Internal Oblique Transverse Abdominis |
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Abdominals:
*All 4 muscles act together to provide support and protection* |
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External Oblique: |
Most superficial of the 3 lateral muscles
A: Trunk flexion & rotation
Thoracic & lumbar flexion Contralateral (opposite) trunk rotation Pelvic rotation (posterior) |
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External Oblique: |
PICTURE |
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Internal Oblique: |
A: Trunk flexion & rotation
Thoracic & lumbar flexion Ipsilateral (same side) trunk rotation |
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Internal Oblique: |
PICTURE |
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Transverse Abdominis: |
A: Flexion & rotation of trunk
Thoracic & lumbar flexion Serves as the body's "natural weight belt" Compresses abdominal contents to increase spinal stability |
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Transverse Abdominis: |
PICTURE |
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Rectus Abdominis: |
O: Pubic symphysis I: Rib cage, xiphoid process A: Trunk flexion Thoracic & lumbar Primarily responsible for flexion of the trunk Pelvic girdle rotation (posterior) |
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Superficial muscles: |
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Deep muscles: |
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Back musculature: |
Erector Spinae Group Iliocostalis Lumborum Longissimus Dorsi Spinalis Dorsi Multifidus Quadratus Lumborum
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Erector Spinae Group: |
O: Lumbar & Sacral spines Splits into 3 branches: (3 muscles of erector spinae group include:) 1. Iliocostalis lumborum 2. Longissimus dorsi 3. Spinalis dorsi
*Support Thoracic & Lumbar spine* |
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Iliocostalis Lumborum: |
A: Extension & Ipsilateral (same side) rotation of spine |
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Longissimus Dorsi: |
A: Spine extension & ipsilateral lateral flexion
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Spinalis Dorsi: |
A: Extension of spine |
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Erector Spinae Group: (Picture): |
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Erector Spinae Group: (Picture): |
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Multifidus: |
A: Extension & rotation of spine Important spine stabilizer
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Quadratus Lumborum: |
Posterior hip/spine muscles Important spine stabilizer during movement
O: Posterior Iliac crest I: L1-L5 transverse processes A: Extension, flexion, & lateral flexion of spine |
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Quadratus Lumborum: (Picture): |
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Cervical Musculature: (Anterior): |
Sternocleidomastoid Scalenes
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Cervical Musculature: (Posterior): |
Splenius Capitis Semispinalis Capitis |
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Sternocleidomastoid: |
O: Sternum & Clavicle (2 heads of origin) I: Mastoid process of the temporal bone A: Bilateral contraction leads to flexion of the head N: Spinal accessory nerve
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Sternocleidomastoid:
A: Bilateral contraction leads to flexion of the head, however individually they cause: |
Contralateral rotation & lateral flexion Elevation of the rib cage during forced inhalation |
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Sternocleidomastoid: (Picture): |
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Scalenes: |
Anterior, Middle, Posterior
A: Rotation & lateral flexion of the neck, elevation of the rib cage 1st & 2nd ribs |
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Scalenes: |
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Splenius Capitis: |
O: Spinous processes C7-T6 I: Mastoid Process A: Ipsilateral Rotation, lateral flexion & extension |
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Splenius Capitis: (Picture): |
PICTURE |
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Semispinalis Capitis: |
O: Transverse Processes T1-T6 & articular surfaces of C4-C7 I: Occipital bone A: Extension, lateral flexion, & rotation |
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Semispinalis Capitis: (Picture): |
PICTURE |
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Accessory Breathing Musculature: |
Used to elevate the rib cage & allow for air to move into the lungs during intense exercise
Internal Intercostals External Intercostals Sternocleidomastoid Scalenes Internal & External Obliques |
