Appendicular Skeleton Flashcards
Clavicle
Part of the pectoral girdle; the collarbone
Acromial end of clavicle
Articulates at the lateral end with the acromion of the scapula
Sternal end of clavicle
Articles medically with the sternum
Conoid tubercle of clavicle
Towards the acromial end and faces inferiorly
Scapula
Anchored by various muscles but not attached to ribs; shoulder blade; joint with clavicle at acromion
Spine of scapula
Ridge that protrudes posteriorly and ends at the acromion
Acromion of scapula
Plate-like extension at the lateral end of spine; articulates with acromial end of clavicle
Glenoid fossa/cavity of scapula
Articulates with the head of the humerus
Coracoid process of scapula
Antera lateral protrusion which anchors muscles
Lateral border of scapula
Faces axillary region
Medial border of scapula
Faces vertebrae
Supraspinous fossa of scapula
Superior to spine; origin for rotator cuff muscle
Infraspinous fossa of scapula
Inferior to spine; origin for rotator cuff muscle
Subscapular fossa of scapula
Broad anterior surface
Humerus
Bone of the brachial region; helps with the glenohumeral/shoulder joint
Head of humerus
Articulates with the glenoid cavity of the scapula
Greater tubercle of humerus
Lateral rounded process
Lesser tubercle of humerus
Medial rounded process
Deltoid tuberosity of humerus
Rough insertion site on the lateral mid shaft that serves as an insertion for the deltoid muscle
Medial epicondyle of humerus
Smaller, medial condyle that is proximal to the trochara; anchors various antebrachial/forearm muscles
Lateral epicondyle of humerus
Smaller, lateral condyle that is proximal to the capitulum; anchors various antebrachial/forearm muscles
Trochlea of humerus
Medial condyle on the distal end of humerus; articulates with radius
Capitulum of humerus
Lateral condyle on the distal end of the humerus; articulates with radius
Intertubercular groove/sulcus of humerus
Runs between the greater and lesser tubercles
Olecranon fossa of humerus
Accommodates the olecranon process of the ulna, allowing the elbow to bend
Carpal Mnemonic: So Long To Pinky, Here Comes The Thumb
Scaphoid, Lunate, Triquetrum, Pisiform, Trapezium, Trapezoid, Capitate, and Hamate
Metacarpals I-V
Metacarpal I corresponds to the thumb and Metacarpal V corresponds to the pinky
Phalanges of hand
Consist of Proximal, Middle, and Distal Phalanges. Pollux/thumb lacks a middle phalange
Os Coxa
Bones of the pelvic girdle; joined posteriorly at the sacrum and anteriorly at the pubic symphysis
Acetabulum of Os Coxa
Socket of the coaxial joint that articulates with the femur
Obturator Foramen of Os Coxa
Allows blood vessels and nerves to pass
Ilium of Os Coxa
The largest and most superior of the 3 bones of the coxal bone
Greater & lesser sciatic notch of ilium
Concave structure which accommodates the sciatic nerve
Auricular surface of ilium
Articulates with the sacrum to form the sacroiliac joint
Iliac crest of ilium
Superior portion of iliac bone
Anterior superior iliac spine
Origin for sartorious muscle
Anterior inferior iliac spine
Origin for rectus femoris muscle
Iliac fossa of ilium
Inner portion of ilium that forms the bowl shape of the pelvis
Ischium of Os Coxa
Forms the inferoposterior part of the coxal bone
Coronoid fossa of humerus
A shallow depression on the anterior surface superior to the trochlea
Radius
The bone of the antebrachium on the thumb side
Head of radius
Discoid structure on the proximal end
Styloid process of radius
Bony point at the distal end towards the thumb
Radial tuberosity of radius
Rough prominence on its medial surface
Ulnar notch of radius
A small impression at the distal end that articulates with the head of the ulna
Ulna
The bone of the antebrachium on the pinky side (medial)
Olecranon process of ulna
U-shaped, posterior notch that articulates with the olecranon fossa to flex the elbow
Trochlear notch of ulna
C-shaped structure that articulates/wraps around the trochlea of the humerus
Radial notch of ulna
Accommodates the head of the radius
Coronoid process of ulna
Insertion site of brachialis muscle
Head of ulna
At the distal end
Styloid process of ulna
Bony point at the distal end towards the pinky
Patella
The knee cap
Base of patella
Broad, superior portion
Apex of patella
Sharp, inferior portion
Tibia
The shin bone
Lateral condyle of tibia
Articulates with the lateral condyle of the femur
Medial condyle of tibia
Articulates with the medial condyle of the femur
Tibial tuberosity
Rough anterior portion inferior to the patella
Medial malleolus of tibia
Medial ankle bone
Anterior border of tibia
A narrow ridge on the anterior surface, which can be palpated
Fibula
Non-weight bearing bone of the lower limb
Head of fibula
Points superiorly and articulates with tibia
Lateral malleolus of fibula
Lateral ankle bone
Ischial spine of Os Coxa
A posterior projection superior to the ischial tuberosity
Ischial tuberosity of Os Coxa
Supports weight when sitting
Pubis
The most anterior part of the coxal bone
Pubic symphysis
A slightly flexible joint where the 2 pubis bones meet
Pectineal line
Ridge on pubic bone that is lateral to pubic crest; origin of pectineus muscle
Pubic crest
Anterosuperior portion of the pubis
Femur
The thigh bone, which is the thickest and strongest bone of the skeleton
Head of femur
Ball of the coxal joint that articulates with the acetabulum
Neck of femur
Inferior to head
Patellar surface of femur
Articulates with patella
Spiral line of femur
Medial line from the linea aspera to the lesser trochanter
Lateral condyle of femur
A rounded lateral projection on the posterior side of the distal end
Medial condyle of femur
A rounded medial projection on the posterior side of the distal end
Linea aspera of femur
Posterior ridge
Greater & lesser trochanter of femur
Insertion for hip muscles
Intertrochanteric line of femur
Bony line running between the femoral trochanters
Foot
Composed of the tarsals, metatarsals, and phalanges
Foot mnemonic: Tiger Cubs Need MILC
Talus, Calcaneus, Navicular, Medial Cuneiform, Intermediate Cuneiform, Lateral Cuneiform, and Cuboid
Metatarsals I-V
Metatarsal I corresponds to the hallux/big toe and Metatarsal V corresponds to the pinky toe
Phalanges of foot
Consists of proximal phalanges, middle phalanges, and distal phalanges. Hallux/big toe lacks a middle phalange
Acromioclavicular joint
Between the acromion of the scapula and the acromial end of the clavicle
Glenohumeral joint
Between the glenoid fossa of scapula and head of humerus; shoulder joint
Humeroradial joint
Between the capitulum and head of the radius; part of the elbow joint
Humeroulnar joint
Between the trochlea of the humerus and the trochlear notch of the ulna; part of the elbow joint
Proximal radioulnar joint
Between the radius and ulna near the elbow
Distal radioulnar joint
Between the radius and ulna near the wrist
Radiocarpal joint
Between the radius and the carpal bones
Intercarpal joint
Between carpal bones
Carpometacarpal joint
Between the carpal bones and metacarpal bones
Metacarpophalangeal joint
Between the metacarpal bones and the phalanges
Interphalangeal joint
Between the phalanges
Sacroiliac joint
Between the sacrum and the ilium
Pubic symphysis joint
Between the pubic bones
Hip/coxal joint
Between the acetabulum and the head of the femur; the hip joint
Tibiofemoral joint
Between the condyles of the femur and tibia
Femoropatellar joint
Between the femur and the patella; knee joint
Proximal tibiofibular joint
Between the tibia and fibula near the knee
Distal tibiofibular joint
Between the tibia and fibula near the ankle
Tibiotalar joint
Between the tibia and the talus
Intertarsal joint
Between the tarsal bones
Tarsometatarsal joint
Between the tarsal bones and metatarsal bones
Intermetatarsal joint
Between the metatarsal bones
Metatarsophalangeal joint
Between the metatarsal bones and phalanges