BONES 



217 



BONES 



TABLE OF BONES. 



Name. 



Principal Features. 



Articulations and Variety. 



Muscular and Ligamentous 

 Attachments. 



Astragalus. Irregularly cubical .forms the key- Tibia, L,-,, /mm ,, 

 stone of arch of foot; head, neck, Fibula, ]K lH Styrnus. 

 six articular surfaces. Os calcis, ) ., a . il g 1 



Scaphoid, / at ^ rt >dia. 



Internal and external lateral ligaments. 



Atlas. First cervical vertebra ; ring-like ; Occipital bone — double arthrodia. \ Longus colli {tubercle), rectus capitis 



anterior and posterior arches and Axis, four joints — diarthrodia rota- \ posticus minor (spinous process). 

 tubercles; articular surfaces. toria and double arthrodia. 



Axis. Second cervical vertebra; body, 



j odontoid process, pedicles, lam- 

 | inae, spinous process, transverse 

 processes, articular surfaces. 



First cervical vertebra — diarthrodia 

 rotatoria and double arthrodia. 



Third cervical vertebra — double ar- 

 throdia. 



Longus colli, check ligaments. 



Calcaneum. The heel bone; irregularly cu- Astragalus,! 



j boidal ; lesser process [sustenta- Cuboid, Varthrodia. 

 I culum tali], greater process, pero- Scaphoid, J 

 neal ridge or spine, superior 

 groove, articular surfaces. 



Tibialis posticus, tendo Achillis, plant- 

 aris, abductor pollicis, abductor mini- 

 mi digiti, flexor brevis digitorum, 

 flexor accessorius, extensor brevis 

 digitorum. 



Carpal. 



Consists of scaphoid, semilunar, 

 cuneiform, pisiform, trapezium, 

 trapezoid, os magnum, unciform. 

 See Individual Bones. 



Collar bone, resembles the italic Sternum, 

 "_/""; conoid tubercle, deltoid Scapula, 



tubercle, oblique line. 



Cartilage of first rib, ) 



■arthrodia. 



Sterno-cleido-mastoid, trapezius, pec- 

 toralis major, deltoid, subclavius, 

 sterno-hyoid, platysma. 



The last bone of the vertebral col- Sacrum— amphiarthrodia. 

 umn ; resembles a cuckoo's beak; 

 usually composed of four small 

 segments : base, apex, cornua. 



Coccygeus, gluteus maximus, extensor 

 coccygis, sphincter ani, levator ani. 



Occipital, parietal (two), frontal, 

 temporal (two), sphenoid, eth- 

 moid. See Individual Bones. 



Cuboid. I Somewhat pyramidal ; tuberosity. Os calcis, 



External cuneiform, I _#*_jtj_ 

 4 th and 5 th metatarsal r arthrodta - 

 bones. 



: Flexor brevis pollicis. 



Semilunar, 

 Pisiform, 

 Unciform, 



Interarticular fibro-car- 

 tilage. 



arthrodia. 



Middle. 



Irregularly wedge-shaped ; the 

 largest of the three. 



Wedge-shaped ; smallest of the 

 three. 



External. I Wedge-shaped. 



Scaphoid, 



Middle cuneiform, 



First and second meta- 

 tarsal bones. 



Scaphoid, 



Internal cuneiform, 



External cuneiform, 



Second metatarsal. 



Scaphoid, 



Middle cuneiform, 



Cuboid, | 



Second, third, and fourth 

 metatarsal bones. J 



arthrodia. 



arthrodia. 



Tibialis anticus and posticus. 



Tibialis posticus. 



Tibialis posticus, flexor brevis pollicis. 



arthrodia. 



