Appendicular Skeletal Limbs

UNIT 3 LESSON 3 APPENDICULAR SKELETAL LIMBS INTRO Pectoral Girdie 6 clavicle & scaputa Upper limbs humerus, vina, radw's bones of wrist B hand Delvic Gudie hip bones Lower lives femur, tibia, Fibula bones of aokies feet. PECTORAL GIROLE→ CLAVICLE 5-shaped bone / join with scaputa not humers originates @ the manubrium 4 extends from sternum Scapula, above i rib the only direct comection between the pectoral girdie cand the axial skeleton is thru the acronomioclavicular jolet alled rits PECTORAL GIRDLE SCAPULA 4 triangular shaped flat bones in upper back articulates with the numerus of the glenoid caving (glenolumesal joint) and w/ the clouicre @ the tacro normaciovicular και large processes for muscle attachment toe coracod provess just hovers there, not attached the acromion 4 Spine on the posterior surface of the stapuig ends as the dacronomion process Gra Anterior www Lateral view Posterior view UPPER LIMBS HUMERUS head of the humerus articulates with the scapuια condyle distal end of humerus articulates with the bones of the forearm. 4 STRUCTURES 2 NOTE: humeral head greater tuberosity medial and lateral epicondyles trochlea and capitulum Dlecranon fossa, coronoid fossa, radial fossa. appendicular is everything that attaches to the axial skeletan to devigid The Elbow... Lateral supracondylaridge Radial fona Latem apicondyle Capitulum Head of the radius Coronoid fossa Medie epicondyle Trochien Coronold process of the l UNIT 3 LESSON 3 *process extends the bone UPPER LIMBS RADIUS & ULNA parallel long bones of the forearm. (in anatomical position) the vina is medial to the radius. Parts of the ulna olecranon, shaft, ulnar head. trochlear noich of uina articulates with trochleg of humerus (@elbow) radial noich articulares with the head of the radius Parts of the radius: Radial head, shaft, radial styloid process Head of the radius arthoulates with the capitulum of the humerus Ulnar notch articulates w/ the head of the ulna. Radial styloid process articulates with the bones of the wrist. Bones of wrist & hand [Figure 8-6 251] UPPER LIMBS Carpal bones & bones of the wrist Metacarpal bones 5 bones that make up the paim; joins phalanx to the wrist Phalanges 14 bones in the fingers (2 in thumio. 3 in other fingers) PELVIC GIROLE 4 consists of 2 hip bones (coxal bones), same 2 hip bones each hip bone consists ilium, ischium, pubis the acetabulum (on lateral surface of the hip bone) articulates w/ head of femur. *IMPORTANT BONE MARKINGS: -iliac spine, ischial spine -iliac crest arcuate lune - superior pubic ramus; pubic tubercule obturator foramen; greater sciatic notch Sciatic nerves run thru here. The left & right pubic bones meet articulate @ the pubic symphsis. Anever sup Pubic tubercle five so orburator foramen Gluteal Lines Acetabum Pub pubic symphys Right hip bone, lateral views Right hip bona, medial views UNIT 3 LESSON 3 PELVIS composite structure involving both axial appendicular skeleton. consists of 2 hip bones (pelvic girdle), sacrum, coccyx hip bones join at pubic symphsis anteriorly & to the sacrum posteriorly (sacroiliac joint) the space enclosed by the bones of the pelvis cavity -the pelvis can be divided into greater (false) and the Lesser (true) pelus -the true & False pelvis are separated by the pelvic Q. diff between pelvic inlet & outter? A inter is the upper opening of the pelvic (mickey mouse face nose) outlet is the lower opening of the pelvic PELVIS L