11681038
Description
Flashcards by Mansi Trikha, updated more than 1 year ago
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Created by Mansi Trikha
almost 7 years ago
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| Question | Answer |
| external intercostals (vertebral column to costachondral junction) | Origin: Inf. Border of rib above Insertion: Sup. Border of rib below Action: Elevate rib cage (inspiration) |
| internal intercostals (sternum to angle of ribs) | Origin: Sup. Border of rib below Insertion: Inf. Border of rib above Action: Depress rib cage (expiration) |
| thoracic diaphragm (floor of thoracic cavity) | Origin: Inf. Border of rib cage and sternum Insertion: Central tendon Action: Prime mover of inspiration: Flattens and enlarges dimensions of thorax |
| rectus abdominis (pubic crest to xyphoid process) [covered w/ sheath] | Origin: Pubic crest and symphysis Insertion: Xiphoid process and costal cartilages Action: Flex lumbar region of vertebral column |
| External oblique (outer surfaces of lower 8 ribs to linea alba) | Origin: Outer surfaces of lower 8 ribs Insertion: Linea alba Action: Jointly: flex vertebral column; Individually: rotation and lateral flexion |
| Internal oblique (iliac creasr to cartilage of lower 3 ribs, linea alba and pubic bone) | Origin: Fascia connecting to lumbar spine; iliac crest Insertion: Linea alba, pubic crest, last 3 ribs Action: Jointly: flex vertebral column; Individually: rotation and lateral flexion |
| Tansverse abdominis (horizontal from 6 lower ribs, lumbar vertebrae, iliac crest to linea alba and pubic bone) | Origin: Inguinal ligament; fascia connecting to lumbar spine; iliac crest, last 6 ribs Insertion: Linea alba; pubic crest Action: Compress abdominal cavity |
| Pelvic diaphragm (muscles closing pelvic outlet) | Levator ani Coccygeus |
| Urogenital diaphragm | Deep transverse perineus |
| superficial space | i. Ischiocavernosus ii. Bulbospongiosus iii. Superficial transverse perineus |
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