Portage Learning: A & P 1, Module 4 Skeletal System

Portage Learning: A & P 1, Module 4 Skeletal System parietal Anstemporal Ansfrontal Ansoccipital Anssphenoid Ansethmoid Ans- small unpaired bone, located in the midline of the anterior cranium, between the two orbits. sinus Ans- spaces inside bones purpose of sinuses Ans- reduces weight of skull//provides resonance to voice fontanelle Ans- spaces b/t posterior, anterior, mastoid, & sphenoid (on infants) mastoid Ansmaxilla Ansmandible Ans- only movable portion of skull nasal Ans- lacrimal Ansforamen magnum Ans- allows spinal cord to pass through to brain external acoustic meatus Ans- allows hearing cervical vertebrae Ans- C1-C7, small body, large vertebral foramen, straight & narrow spinous process, transverse process & transverse foramen (passage of vertebral arteries) atlas Ans- C1, large vertebral foramen allows for passage of brain stem and spinal cord, no body axis Ans- C2, odontion process sticking out, allows for rotation of the skull thoracic vertebrae Ans- T1-T12; second set of 12 vertebrae; costal facets that articulate with the 12 pairs of ribs ; superior and inferior facets ; long and pointed spinous process lumbar vertebrae Ans- L1-L5, large body to support weight of vertebral column, sacrum Ans- 5 fused vertebrae, separate at birth coccyx Ans- tailbone, attachment point for muscles zygomatic Ansthoracic cage Ans- 24 ribs, 1 sternum sternum Ans- breastbone manubrium Ansbody of sternum Ans- attached via costal cartilage to R2 through R7 xiphoid process Ans- palpate to locate place for chest compressions true ribs Ans- 1-7 attach directly to sternum false ribs Ans- 8-12 do not attach directly to sternum floating ribs Ans- 11-12 do not attach to sternum shoulder girdle Ansscapula Answhat's special about scapula? Ans- freely moving, attached only by muscle clavicle Ans- collar bone, superior smooth surface and inferior rough surface for muscle attachment ; sternum extremity (round head) attaches to sternum & acrimony extremity humerus Ans- has nutrient foramina radius Ans- lateral bone of the forearm ulna Ans- medial bone of the forearm carpals Ans- scaphoid, lunate, triquetrum, pisiform, trapezium, trapezoid, capitate, hamate (Sally Left the Party, To Take Charlie Home) capitate Anshamate Anstriquetral Anspisiform Anslunate Ansscaphoid Anstrapezium Anstrapezoid (wrist bone) Ansmetacarpals Ansfirst metacarpal Ansproximal phalanges Ansmiddle phalanges Ansdistal phalanges Anspelvic girdle Ans- separate during childhood coxal bones Ansilium Ansischium Anspubis Answhat's special about female pelvis? Ans- pelvic hole is wider and bigger to allow childbirth femur Ans- longest and strongest bone in the body tibia Ans- shin bone fibula Ans- The lateral and smaller bone of the lower leg patella Anscalcaneus Ans- heel of foot talus Anstarsals Anscuneiform Anscuboid Ansnavicular Ans- metatarsals Ansproximal phalanges (foot) Ansmiddle phalanges (foot) Ansdistal phalanges (foot) Answhich bone is big toe missing? Ans- middle phalange 3 arches of the foot Ans- transverse, medial longitudinal and lateral longitudinal fibrous Ans- immovable joint (skull) cartilaginous joint Ans- a joint that is slightly moveable (vertebrae) synovial Ans- free moving (knee) synovial fluid Ans- product of synovial membrane//lubricates joints example of hinge joint Ans- knee or elbow Medial Collateral Ligament Ans- posterior view Anterior Cruciate Ligament (ACL) Ans- anterior view Posterior Cruciate Ligament (PCL) Ans- posterior view