Relier Pairs Unit 2 Part 3: The Appendicular SkeletonVersion en ligne Information on the appendicular portion of the skeleton and its features par Abigail Scott 1 Functions of the Appendicular Skeleton 2 Bones of the Appendicular Skeleton Upper: Clavicle, Scapula, Humerus, Radius, Ulna, Carpals, Metacarpals, Phalanges Lower: Coxa, Femur, Tibia, Fibula, Tarsals, Metatarsals, Phalanges Vertical support, support the head, protect the spinal cord 1 Sternal End 2 Clavicle 3 Scapular Spine 4 Scapula Features 5 Pectoral Girdle (Shoulder) 6 Subscapular Fossa 7 Infraspinous Fossa 8 Acromial Process 9 Consists of 10 Acromial End 11 Glenoid Fossa 12 Coracoid Process 13 Supraspinous Fossa 14 Clavicle Features 15 Scapula 16 Fossae Articulates with the acromial process of the scapula = Acromioclavicular joint Acromial Process, Coracoid Process, Scapular Spine, & Fossae Inferior to the scapular spine Site of muscle attachment (infraspinatus) The ridge between Supraspinous & Infraspinous fossae Site of muscle attachment (trapezius, etc.) LARGER lateral projection, more posterior Articulates with the acromial end of the clavicle = Acromioclavicular joint Clavicle (2) & Scapula (2) Sternal end & acromial end Smaller lateral projection, more anterior Site of muscle attachment (pectoralis minor & biceps brachii) Lateral For head of humerus Anterior side of the scapula (closest to ribcage) Site of muscle attachment (subscapularis) Attaches the upper limbs to the trunk (the sternum) "shoulder blade" Supraspinous, Infraspinous, Subscapular, & Glenoid Articulates with the clavicular notch of the manubrium (sternum) = Sternoclavicular joint "collarbone" superior to the scapular spine Site of muscle attachment (supraspinatus) 1 Radius & Ulna 2 Metacarpals 3 Carpals Components 4 Humerus Components 5 Phalanges Components 6 Radius Components 7 Humerus 8 Metacarpals Components 9 Carpals 10 Parts of the Upper Limb 11 Phalanges 12 Ulna Components 5 in total; Not named but numbered I (Lateral, thumb) - V (Medial, pinky) 8 in total; Only need to know scaphoid Bones of the fingers Upper Arm (brachium) Bones of the palms Forearm (antebrachium) Humerus, Radius, Ulna, Carpals, Metacarpals, & Phalanges Head, Greater Tubercle, Lesser Tubercle, Deltoid Tuberosity, Medial Epicondyle, Lateral Condyle, Capitulum, Trochlea, Olecranon Fossa 14 in total; 5 proximal, 4 middle, & 5 distal; numbered 1-5 from thumb to pinky - proximal & distal; numbered 2-4 from index to pinky - middle Bones of the wrist Trochlear Notch, Olercranon, Ulnar Tuberosity, Radial Notch, Head Head, Radial Tuberosity, Ulnar Notch, Carpal Surface, 1 Ilium Features 2 Pubis 3 Components of Pelvic Girdle 4 Auricular Surface 5 Ischium Features 6 Ilium 7 Iliac Crest 8 Os Coxa 9 Pubic Symphysis 10 Ischium 11 Iliac Fossa 12 Ischial Tuberosity 13 Bones of the Os Coxa 14 Pelvic Girdle Iliac Crest, Iliac Fossa, Auricular Surface Inferior, posterior portion of the coxa Ilium, Ischium, Pubis Ischial Tuberosity fibrocartilage disk absorbs shock while walking & allows for childbirth What you put your hands on when you rest your hands on your “hips” Site of muscle attachment 2 Coxa Inferior, anterior portion of the coxa Articulates with the other coxa at the pubic symphysis Largest of the 3 bones; Superior portions of the coxa; Articulates with the sacrum Articulates with the auricular surface of the sacrum = sacroiliac (SI) joint 3 bones that fuse during puberty at the acetabulum (hip joint) Large, smooth, concave surface Site of muscle attachment (internal hip muscles) What you sit on (“sits bone”) Site of muscle attachment (adductor magnus, hamstrings) attaches lower limbs to the trunk (sacrum), supports body weight, protects pelvic organs 1 Components of the Fibula 2 Tarsals 3 Patella 4 Tibia 5 Components of the Metatarsals 6 Components of the Patella 7 Components of the Phalanges 8 Components of the Femur 9 Femur 10 Components of the Lower Limb 11 Fibula 12 Metatarsals 13 Phalanges 14 Components of the Tarsals 15 Components of the Tibia 14 in total; 5 proximal, 4 middle, & 5 distal; numbered 1-5 from thumb to pinky - proximal & distal; numbered 2-4 from index to pinky - middle Bigger of the lower leg bones; Medial bone Medial Condyle, Lateral Condyle, Medial Malleolus, Fibular Notch Bones of the middle foot Base & Apex 5 in total; named I-V from medial (big) to lateral (baby) Head, Greater Trochanter, Lesser Trochanter, Linea Aspera, Medial Condyle, Lateral Condyle, Patellar Surface Femur, Patella, Tibia, Fibula, Tarsals, Metatarsals, Phalanges Bones of the back foot Bones of the toes Smaller of the lower leg bones; Lateral bone Sesamoid bone - grows within the tendon; protects the knee when kneeling the "thigh"; Longest, strongest, and heaviest bone of the body; At an angle 7 in total; Only need to know Talus and Calcaneus Head, Lateral Malleolu 1 quadricep tendon 2 Cruciate Ligaments 3 Posterior Cruciate Ligament (PCL) 4 menisci 5 Collateral Ligaments 6 Medial Collateral Ligament (MCL) 7 Lateral Collateral Ligament (LCL) 8 Knee 9 patellar ligament 10 Anterior Cruciate Ligament (ACL) fibrocartilage pads between the femoral and tibial condyles Between lateral femur and fibula; Prevents hyperadduction (keeping it from moving too far medially) stabilize the front and back of the tibiofemoral joint; ACL & PCL from muscle to the patella (above knee) Stabilize the sides of the joint; LCL & MCL anterior, behind patella, crosses in front of PCL joint of femur, patella, tibia, fibula posterior, popliteal region from patella to the tibial tuberosity (below knee) Between medial femur and tibia; Prevents hyperabduction (keeping it from moving too far laterally)
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