2 main advantages of the pectoral girdle Correct Answers 1.
increase range of movement for the upper limb.
2. increase the force of movement for the upper limb
accessory bones Correct Answers extra bones, usually from
failure of two bones to fuse. Most common type are sutural
bones.
acromioclavicular joint Correct Answers There are two
movements of the scapula and clavicle that involve the
____________________________.
Occurs during full abduction of humerus above the head. Lateral
rotation, medial rotation
appendicular skeleton Correct Answers Bones contained in the
upper and lower extremities and the limb girdles (pectoral and
pelvic girdles). Total of 126 bones.
axial skeleton Correct Answers Bones in the main axis of the
body. Bones of the skull, mandible, vertebrae, sternum, ribs, and
hyoid bone. Total of 80 bones.
cancellous (spongy) bone Correct Answers made of trabeculae
(scaffolding structures) that contain bone marrow in the spaces.
Cartilaginous joints Correct Answers Bones held together with
fibrocartilage (and sometimes hyaline cartilage). This type of
joint produces either no movement or only slight movement.
, Examples: epiphyseal plates, intervertebral discs, costal
cartilages, and pubic symphysis
collagenous material Correct Answers Resistance to being
pulled apart. 30-40%
compact bone Correct Answers dense layers of bone. contains
no bone marrow.
Coracoacromial ligament Correct Answers Does not stabilize
the AC joint, but provides protection for the GH joint.
diaphysis Correct Answers Primary center of ossification
endochondral bones Correct Answers Mesenchyme is replaced
by cartilage. The cartilage is destroyed, then bone is laid down
in its place. Ex. epiphyseal plate
Endomysium Correct Answers Connective tissue around each
muscle fiber.
Epimysium Correct Answers Connective tissue surrounding the
entire muscle.
epiphysis Correct Answers Secondary center of ossification
Fibrous jones Correct Answers Bones held together by tough
fibrous connective tissue. No movement occurs at this type of
joint. Ex. skull sutures and epiphyseal lines.