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App and Fetal Skelet

QuestionAnswer
clavicle a long bone that makes up part of the shoulder girdle (pectoral girdle).
medial(=sternal) end rounded end of the clavicle
lateral (=acromial) end flattened end of the clavicle
scapula shoulder blade
superior angle formed by the junction of the superior and vertebral borders, is thin, smooth, rounded, inclined somewhat lateralward, and gives attachment to a few fibers of the Levator scapulae.
superior border the shortest and thinnestit is concave, and extends from the medial angle to the base of the coracoid process.
suprascapular notch a notch in the lateral part of the upper border of the scapula, just next to the base of the coracoid process.
acromion process the enlarged, roughened end of the spine of the scapula
coracoid process points anteriorly over the tip of the shoulder joint and serves as an attachment point for some of the upper limb muscles
glenoid fossa a shallow socket that receives the head of the arm bone, is located in the blunted lateral angle
lateral border axillary
subscapular fossa the anterior shallow depression of the scapula
inferior angle provides a landmark for auscultating lung sounds
medial border vertebral border of the scapula
supraspinous fossa a shallow depression anterior of the scapula.
spine of scapula a prominent plate of bone, which crosses obliquely the medial four-fifths of the scapula at its upper part, and separates the supra- from the infraspinatous fossa.
infraspinous fossa a shallow depression posterior of the scapula
humerous a typical long bone of the arm
greater tubercle prominence opposite the head medially of the humerous
lesser tubercle prominence opposite the head laterally of the humerous
head (humerous) the part of the humerous that fits into the shallow glenoid cavity of the scapula
surgical neck (humerous) the more constricted area that separates the head from the shaft
intertubercular groove a groove that guides the tendon of the biceps muscle to its point of attachment
deltoid tuberosity the roughened area at the midpoint of the shaft of the humerous where the large fleshy shoulder muscle attaches
medial epicondyle the funny bone
lateral epicondyle a small, tuberculated eminence, curved a little forward, and giving attachment to the radial collateral ligament of the elbow-joint, and to a tendon common to the origin of the Supinator and some of the Extensor muscles
capitulum articulates with the radius of the forearm
coronoid fossa a small depression above the trochlea on the anterior surface
trochlea articulates with the ulna
olecranon fossa a small depression above the trochlea on the posterior surface
radius one of the bones in the forearm that is in the lateral position of the forearm
head (radius) disc-shaped that articulates with the capitulum of the humerous
neck (radius) space just below the head on the radius
radial tuberosity a prominence that is the point of attachment for the tendon of the biceps muscle of the arm
styloid process (radius) a conical prolongation of the lateral surface of the distal extremity of the radius that gives attachment to several tendons and ligaments
ulna the medial bone of the forearm
olecranon process a hook-like structure that fits into the olecranon fossa large depression, formed by the olecranon and the coronoid process, and serving for articulation with the trochlea of the humerus
trochlear notch a large depression, formed by the olecranon and the coronoid process, and serving for articulation with the trochlea of the humerus.
coronoid process a triangular eminence projecting forward from the upper and front part of the ulna.
styloid process (ulna) serves as a point of attachment for the ligaments of the wrist
phalanges (distal, middle, and proximal) bones of the fingers
metacarpals bones of the palm
carpals (hamate, pisiform, triangular, lunate, trapezoid, trapezium, scaphoid, and capitate) bones of the wrist
iliac crest rough superior margin of the iliac bone
sacrum a large, triangular bone at the base of the spine and at the upper and back part of the pelvic cavity, where it is inserted like a wedge between the two hip bones
coccyx tailbone, finale formation of the vertebral column
sacroiliac joint the joint in the bony pelvis between the sacrum and the ilium of the pelvis, which are joined together by strong ligaments
os coxa appendicular hip bone
pelvic brim the opening delineated by the sacral promontory posteriorly and the arcuate lines of the ilia anterolaterally
pubic arch the notch formed by the inferior rami of the two conjoined pubic bones as they diverge from the midline
pubic symphysis the midline cartilaginous joint (secondary cartilaginous) uniting the superior rami of the left and right pubic bones
true pelvis the region inferior to the arcuate line that is almost entirely surrounded by bone
false pelvis that portion superior to the arcuate line; it is bounded by the alae of the ilia laterally and the sacral promontory and lumbar vertebrae posteriorly
ilium a large flaring bone that forms the major portion of the coxal bone
ischium the "sit-down" bone, forming the most inferior and posterior portion of the coxal bone
pubis the most anterior portion of the coxal bone
anterior superior iliac spine where the iliac crest terminates anteriorly
anterior inferior iliac spine located below the anterior superior iliac spine
posterior superior iliac spine where the iliac crest terminates posteriorly
posterior inferior iliac spine located below the posterior superior iliac spine
greater sciatic notch allows nerves and blood vessels to pass to and from the thigh. includes the sciatic nerve
ischial spine suuprior to the ischial tuberosity, it is an important anatomical landmark of the pelvic cavity
lesser sciatic notch allows nerves and blood vessels to pass to and from the thigh
ischial tuberosity most outstanding marking on the ischium and receives the weight of the body when sitting
obturator foramen through which blood vessels and nerves run from the pelvic cavity into the thigh
acetabulum socket which receives the head of the thigh bone
head (femur) articulates with the hip bone via the deep, secure socket of the acetabulum
neck (femur) constricted and angles laterally to join the staff
greater tronchanter located at the junction of the shaft and neck of the femur
lesser tronchanter located at the junction of the shaft and neck of the femur
intertrochanteric line a line located on the anterior side of the proximal end of the femur
intertrochanteric crest a bony ridge located on the posterior side of the head of the femur, stretching obliquely downward and medially from the summit of the greater trochanter to the lesser trochanter
lateral condyle one of the two projections on the lower extremity of femur. It is the more prominent and is the broader both in its antero-posterior and transverse diameters.
medial condyle larger than the lateral (outer) condyle due to more weight bearing caused by the center of gravity being medial to the knee
intercondylar notch slightly prominent, and are separated from one another by a smooth shallow articular depression called the patellar surface
intercondylar eminence receives the distal end of the femur to form the knee joint
lateral condyle (tibia) the lateral portion of the upper extremity of tibia
medial condyle (tibia) the medial portion of the upper extremity of tibia
tibial tuberosity a roughened protrusion on the anterior tibial surface and is the site of attachment of the patellar ligament
medial malleolus forms the inner buldge of the anke and the smaller distal end articulates with teh talus bone of the foot
head (fibula) lies parallel to the tibia, but takes no part in forming the kneecap
lateral malleolus forms the outer part, or lateral bulge, of the ankle
phalanges (distal, middle, and proximal) foot forms the toes
metatarsals (foot) form the instep of the foot
tarsals (medial cuneiform, intermediate cuneiform, lateral cuneiform, navicular, cuboid, talus, and calcaneus) bones of the foot
fontanels of the skull (anterior, posterior, sphenoidal, and mastoid) indentations between the bones of the fetal skull are fibrous membranes
Created by: wacdmc