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25 Cards in this Set
- Front
- Back
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frontalis |
draws scalp forward, raises eyebrows, wrinkles forhead |
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occipitalis |
draws scalp backward |
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orbicularis oris |
compresses and purses lips (kiss muscle)
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orbicularis oculi |
closes eye (blink muscle)
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platysma |
pulls lower lip inferiorly, tenses skin of neck
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zygomaticus major |
pulls corners of mouth superiorly (smile) |
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zygomaticus minor |
pulls corners of mouth superiorly (smile) |
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buccinator |
presses cheeks against molar teeth, chewing, whistling, wind instruments |
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temporalis |
Proximal: parietal bone, frontal bone Distal: coronoid process of mandible Action: elevates and retracts mandible |
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masseter |
Proximal: zygomatic arch
Distal: coronoid process, angle, and ramus of mandible Action: elevates and protracts mandible, jaw closure |
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sternocleidomastoid |
Proximal: manubrium of sternum, sternal end of clavicle Distal: mastoid process of temporal bone Action: one side: lateral flexion with rotation of head to opposite side Both sides: flexes head & neck |
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splenius capitis |
Proximal: Ligamentum nuchae (connective tissue covering spinal processes of cervical vertebrae) Distal: occipital bone, mastoid process of temporal bone Action: one side: turns head to same side Both sides: extends head & neck |
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splenius cervicis |
Proximal: spinous processes of T3-T6 Distal: transverse processes of cervical vertebrae Action: one side: turns head to same sideBoth sides: extends head & neck |
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iliocostalis group |
One side: laterally flexes the vertebral column Both sides: extends vertebral column |
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longissimus group |
One side: laterally flexes the vertebral column Both sides: extends vertebral column |
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spinalis group |
One side: laterally flexes the vertebral column Both sides: extends vertebral column |
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quadratus lumborum |
One side: laterally flexes the vertebral column Both sides: extends vertebral column |
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external intercostals |
elevates ribs during normal inspiration (inhalation) |
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internal intercostals |
depresses ribs during forced exhalation |
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diaphragm |
expands the thoracic cavity during normal inspiration |
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external oblique |
one side: laterally flexes vertebral column both sides: flexes vertebral column & compresses abdominal wall |
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internal oblique |
one side: laterally flexes vertebral column both sides: flexes vertebral column & compresses abdominal wall |
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transversus abdominis |
one side: laterally flexes vertebral column both sides: flexes vertebral column & compresses abdominal wall |
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rectus abdominis |
flexes vertebral column & compresses abdominal wall |
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inguinal ligament |
Significance: formed by the aponeurosis of the external oblique; contains tissues coursing from the trunk to the lower limb |
