Appendicular Skeleton Flashcards
Bones in the appendicular skeleton
Upper/lower extremities
Pectoral and pelvic girdle
What bones are in the pectoral girdle
Scapula and clavicle
Triangular bone with three sides and angles
Scapula
What are the borders of the scapula
Superior medial and lateral
What are the angles of the scapula
Superior inferior Lateral
A depression in a lateral angle is called…
Glenoid fossa
Articulates with the humerous at shoulder joint
Glenoid fossa
Anterior surface of scapula is called…
Subscapular fossa
Projection of spine overarching the shoulder joint
Acromion
Projects anteriorly (scapula)
Coracoid process
Movements of the scapula
Elevation (up) Depression (down) Adduction (toward each other) Abduction (away from each other) Superior (upward rotation) Interior (downward rotation
S shaped, collar bone
Clavicle
What are the ends of the clavicle
Lateral (left)
Medial (right)
Secures the position of the scapula on the upper thorax
Clavicle
What’s the only bony attachment between upper extremity and axial skeleton
Clavicle
Only bone in the arm
Humerous
In the humerous, the head articulates with the…
Glenoid fossa at shoulder joint
Greater/lesser tubercles in the humerous…
Provide attachment sites for muscles
Slight elevation along the shaft in humerous
Deltoid tuberosity
What articulates with the bones of the forearm at the distal end
Trochka and capitulum
Medial and lateral epicondyles in the humerus…
Provide muscle attachment sites
Movements of the humerus at the glenohumeral joint…
Flexion, extension, abduction, adduction, medial rotation, lateral rotation, circumduction
Medial bone in forearm
Ulna
Forms part of elbow
Olecranon
What articulates with the trochlea of humerus
Trochlear knotch
Attachment for muscle in ulna
Tuberosity
Distal end of ulnar is marked by the…
Head and styloid process
Lateral bone of forearm
Radius
Site of muscle attachment in radius
Radial tuberosity
Distal end of radius is…
Board and has a styloid process
Movements of the radius and ulna at elbow joint
Flexion (bend)
Extension(straight)
Movements at proximal/distal joints
Pronation (radius crosses over ulna, palm down)
Supination (radius and ulna are parallel, palm up)
Connective tissue that binds the radius and ulna, and transfers forces from hand to humerus
Interosseus membrane
Bones of wrist? How many?
Carpals (8)
Bones of hand? How many?
Metacarpals (5)
Bones of digits? How many?
Phalanges, 14
What are the types of bones in carpals
Proximal row and distal row
Movements at wrists joint…
Flexion, extension, radial deviation, and ulnar deviation
Metacarpals are numbered…
1 through 5 from thumb to pinky
Each finger has how many phalanges
3 (proximal, distal, middle)
Thumb has proximal and distal
Each proximal phalange articulates with its…
Metacarpal
Movements of the thumb
Flexion and extension
Pelvis
Hip bones
Femur
Thigh bone
Tibia
One of the two bones of leg, big toe
Fibula
Other bone of the leg, punky toe
Bones of ankle
Tarsals
Bones of foot
Metatarsal
Bones of toes
Phalanges
Receives the weight of the body through sacrum
Pelvic girdle
Rim marks entry into pelvic cavity
Pelvic inlet
Left and ride sides of pelvis are joined by the
Sacroiliac joints and pubic symphysis
What bones are in pelvic bones
Ilium, ischium, pubis
Divet in bone where the femur and hip join
Acetabulum
Filled with connective tissue and muscle (pelvic bones)
Obturator
Forms top of pelvis
Iliac crest
What provides muscle attachment sites in pelvis
Anterior superior and inferior iliac spines
Attachment for external genitalia, bottom of pelvis
Ischiopubic ramus
Receives weight in sitting and site for muscle attachment and ligament attachment (bottom left curve)
Ischial tuberosity
Differences in male and female pelvis
Males= pubic arch <80°, pelvic inlet is more heart shaped. Females= pubic arch >80°, pelvic inlet is more oval
Knee cap
Patella
Lather more medial than fibula
Tibia
Smaller more lateral bone in leg
Fibula
What bone doesn’t articulate with the femur at the knee joint or with the ankle bones
Fibula
Doesn’t bear or transfer weight
Fibula
Movement of the knee joint
Flexion and extension
Movements at ankle joint
Doris flexion, plantar flexion, inversions eversion
Each metatarsal bone has a…
Shaft, head, and base
1st metatarsal bone
Medial cuneiform
2nd metatarsal
Intermediate cuneiform
3rd metatarsal
Lateral cuneiform
4th and 5th metatarsal
Cuboid
Flexion in hip occurs in what plane
Saggital
Largest sesmoid bone
Patella
Grows within a tendon
Sesmoid pones