Appendicular Skeleton Flashcards
Pectoral Girdle
Made up of the scapula and clavicle, articulates with the humerus and sternum
Clavicle
Articulates with the sternum at the sternoclavicular joint. Also articulates with the acromion of the scapula at the acromioclavicular joint
Scapula
- Spine
- Acromion
- Coracoid Process
- Glenoid Cavity
- Supraspinous, infraspinous, and subscapular fossa
Acromion
A process that sticks off of the scapula’s spine and articulates with the clavicle
Coracoid Process
Juts off of the scapula just above the glenoid cavity, wrapping around the anterior side of the GC
Glenoid Cavity
The socket into which the humerus of the arm fits, forming the glenohumeral joint
Supraspinous and Infraspinous Fossa
- Supraspinous is a fossa above the scapular spine for muscle and ligament articulation
- Infraspinous is the same, but below the scapular spine
Subscapular Fossa
Fossa on the anterior side of the scapula
Upper Limb Bones
Humerus, Ulna, Radius, Carpals, Metacarpals, Phalanges
Humerus Surface Features
- Greater and lesser tubercle
- Capitulum
- Trochlea
- Coronoid fossa
- Olecranon fossa
- Medial Epicondyle
-Greater and lesser tubercles
- Proximal humerus, near the head
- Greater is posterior, lesser is anterior
Capitulum (humerus)
Articulates with the head of the radius
Trochlea
Articulates with the head of the ulna
Olecranon Fossa
Posterior humerus, a fossa where the olecranon process of the ulna articulates
Coronoid Fossa
Anterior humerus, a fossa where the coronoid process of the ula articulates
Medial Epicondyle
Located at the distal end of the humerus, it is an epicondyle which points toward the middle of the body
Radial Tuberosity
A tuberosity on the radius which articulates with the ulna at the radial notch
Radial Notch
A notch on the ulna which articulates with the radial tuberosity
Interosseous Membrane
A membrane of connective tissue which connects the radius and ulna, and the tibia and fibula
Ulnar Notch
a notch on the distal end of the radius which articulates with the head of the ulna. This makes us the distal radioulnar joint
Styloid Process
Located on the anterior side of both the distal radius and distal ulna, it is a process which points toward the carpals
Radius articulates with these carpals
Scaphoid, Lunate, Triquetrum
Proximal Carpals
Scaphoid, lunate, triquetrum, pisiform
Distal Carpals
Hamate, capitate, trapezoid, trapezium
Pelvic Girdle
- Coxal bone made up of ilium, ischium, and pubic bones
- pubic symphysis
- sacroiliac joints
Acetabulum
The socket into which the ball of the femur is inserted
Male vs. Female Pubic Arch
Males generally have a pubic arch of less than 90 degrees, whereas females tend to have an arch of greater than 90 degrees. Females also tend to have wider pelvic brims for a baby to fit through
Features of the Femur
- Greater and lesser trochanters
- Intercondylar fossa
- Linea aspera
- Medial and lateral condyles
- Medial and lateral epicondyles
- Head
Greater and Lesser Trochanters
- Two trochanters on the proximal end of the femur
- Only trochanters in the body
- Greater trochanter is superior
- Lesser trochanter is inferior
Intercondylar Fossa
Located between the two condyles on the distal end of the femur
Linea Aspera
Roughened ridge on the posterior side of the shaft of the femur
Medial and Lateral Condyles
Condyles located on the distal end of the femur, articulate with the patella and tibia
Medial and Lateral Epicondyles
Epicondyles found on the distal end of the femur
Patella
- Knee bone embedded within the patellar tendon/ligament
- Largest sesamoid bone
Tibia
- Medial to the fibula
- Lateral and medial condyles
- Articulates with the fibula proximally and distally, and with the talus distally
- Tibial tuberosity
- Medial malleolus
Fibula
- Lateral to the tibia
- Lateral malleolus
- Non weight bearing
Tarsal names
Talus, Calcaneal, Navicular, Medial Intermedial and Lateral Cuneiforms, Cuboid
Arches of the Foot
- Medial and lateral longitudinal arches run the length of the foot
- Transverse arch is in the middle of the foot and runs along the transverse plane