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33 Cards in this Set
- Front
- Back
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8 cranium/skull
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parientals
occipital frontal temporals sphenoid ethmoid |
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facial bones
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maxillary
palatine nasal vomer inferior nasal conchae zygomatic lacrimal mandible |
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vertebral column
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cervical 7
thoracic 12 sacrum 1 actually 5 fused vertebra - coccyx 1 usually 3-5 fused vertebra |
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thoracic cage (functions)
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1. protects heart/lungs
2. attachment point for muscles involved in respiration |
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# of true ribs in the thoracic cage
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1-7 (attache to the sternum)
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# of false ribs in the thoracic cage
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8-12
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sternum aka
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breastbone
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what is the sternum consist of
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1. manubrium
2. body 3. xyphoid process |
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manubrium
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articulates with clavicles, most superior part of sternum, attaches 1st rib
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body
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attached to 2-7
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xyphoid process
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attaches diaphragm
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pectoral girdle
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2 clavicles
2 scapula |
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arm
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contains 1 bones that humerus which articulates with the capula and the radius/ulna
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ulna
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forearm
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radius
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forearm
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carpal bones - wrist
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8 carpal bones in 2 rows
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hand
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5 metacarpal bones
14 phalanges |
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pelvic girdle
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ilium
ischium pubis |
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false pelvis
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is area within bladelike projections of 2 ilium bones, part of abdominal cavity
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true pelvis
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is bounded superiorly be base of sacrum to arcuate line to pubic symphysis, bounded inferiorly by tip of coccyx to inferior ischium, encloses pelvic cavity
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pelvic inlet
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is superior part of true pelvis
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pelvic outlet
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is bounded by coccyx, ischial tuberosities and inferior pubic symphysis inferior edges of pelvis called perineum where perineal muscles attach and support the contents of pelvis
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female pelvis
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enlarged outlet
less curvature of sacrum/coccyx broad angle <100 wider pelvic inlet low, broad pelvis smaller bones |
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male pelvis
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more curvature of sacrum/coccyx
pubic angle 90 taller less broad larger bones |
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femur
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largest bone in body
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other lower limbs
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tibia, fibula, ankle (tarsus)
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7 tarsal bones
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talus, calcaneous, naviclar, cuboid, 3 cuneifroms. foot
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joints
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diarthrosis- free (knee/elbows)
amphiarthrosis- semi-moveable synarthrosis- immoveable |
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muscles
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skeletal
smooth cardiac |
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skeletal muscles
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each cell is a single muscle fiber, contains connective tissues, blood vessels, nerves, attached directly or inderectly to bones of skeleton, powered by ATP skeletal muscles cells (fibers) are large up to 12" long and multinucleate
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agonist
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antagonist pairs
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organization of a muscle
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muscle>fascicle>fibers>myofibrils>sarcomeres
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sliding filament theory
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thin filaments slide towards center of each sacromere when skeletal muscle contracts
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