Unit 7: The Skeletal System Flashcards
Forearm (upper extremity)
Between the elbow and wrist
Shoulder girdle
Scapula; acromion process; glenoid cavity; coracoid process; spine
Scapula
Triangular shaped; shoulder blade
Acromion process (shoulder girdle)
Flattened lateral portion of the spine
Coracoid process (shoulder girdle)
A protruding projection on the anterior surface just inferior to the lateral aspect of the clavicle
Spine (shoulder girdle)
A large process on the posterior of the scapula
Clavicle articulates with what 2 bones
Sternum; scapula
Glenoid cavity articulates with what to form the shoulder joint?
Head of the humerous
Upper arm bone
Humerus
Part that forms the shoulder joint
Humerus; scapula; clavicle
Parts that form elbow joint
Radius; ulna; olecranon; humerus
Forearm bones
Radius (lateral/distal for elbow joint) ulna (medial/proximal for elbow joint)
Tip of the elbow
Olecranon
Funny bone
Humerus
Interosseous membrane
The diaphysis shaft where the radius and ulna are connected
Wrist bones
Carpals
Palm bones
Metacarpals
Finger bones
Phalanges
Thumb
Pollex
Coxal bone
Hip
Ilium articulates with
Sacrum
Posterior joint (ilium)
Sacroiliac joint/acetabulum
Greater sciatic notch
Allows passage of the sciatic nerve
Ischium
Constitutes interior/posterior part of the hip bone
Is hail tuberosity
The part that meets the chair when you are sitting
Pubis
Anterior/inferior part of the hip bone
Anterior joint
Front pubis
Part of coral bone that articulates with femur at the hip
Ilium
False pelvis
Contains no pelvic organs except the full bladder and pregnant uterus
True pelvis
Bony pelvis inferior to the pelvic rim; inlet outlet and a cavity (babies come out)
Male/female pelvis
Male: larger, heavier, more narrow, smaller inlet/outlet; pubic arch 90*; more moveable pubic symphysis; more flexible coccyx
Thigh bone
Femur
Part that forms hip joint
Head of femur
Part that forms knee joint
Patella, femoral condyles; tibia
Part that attaches hip muscles
Greater/lesser trochanters
Knee cap
Patella
What type of bone is the knee cap
Sesamoid
Patella is Located in what tendon
Patellar tendon
Medial leg bone
Tibia
Lateral leg bone
Fibula
Medial and lateral malleolus
medial - forms inside surface of ankle joint (tibia)
Lateral - forms the outside projection of ankle joint (fibula)
Ankle bones
Talus, tibia,fibula
Ankle mortise (joint)
Talus
Heel bone
Calcaneous
Sole bones
Metatarsals
Toe bones
Phalanges
Big toe
Hallux
Synarthroses
Immovable; fibrous; skull
Amphiarthroses
Slightly moveable; cartilaginous; pubic symphysis
Diathroses
Freely moveable; ligaments; shoulder/hip
Joint capsule
Composed of dense irregular CT lined by synovial membrane; encompasses the joint cavity and synovial fluid within if
Ligaments
Bones of done irregular CT that join one bone to another
Bursae
Fluid filled structures strategically placed to minimize friction in some joints (shoulder)
Synovial fluid
Found in cavities of synovial joints; reduces critic ion between articular cartilage during movement
Menisci
Cushion; found between articular surfaces
Planar joint
Movement: back/forth
Examples: ankle to ankle; wrist to wrist
Hinge joint
Movement: opening/closing
Examples: elbow/knee
Pivot joint
Movement: rotation around long axis
Condyloid joint
Movement: around z axis
Examples: wrist-forearm
Saddle joint
Movement: oppositional movement
Example: thumb
Ball and socket joint
Movement: most movement/range of motion
Example: hip/shoulder
Range of motion (ROM)
Range measured in degrees of a circle through which the bones of a joint can be measured
What effects ROM
Structure/shape of bones:0; strength/tension of muscle/joints hormones; disuse
Gliding joint
Movement back and forth side to side
Flexion joint
Movement decreases angle
Extension joint
Increases angle
Abduction
Movement towards the midline
Addiction
Movement away from the midline
Circumduction
Movement of a body part in a circle
Rotation
Revolving around its own longitudinal axis (neck)
Inversion
Movement of the foot medially
Eversion
Movement of the foot laterally
Plantarflexation
Movement of the foot at the ankle in a downward direction
Dorsiflexion
Blinding the foot at the ankle in an upward direction
Supination
Movement of the forearm palm up
Pronation
Movement of the forearm Palm turned downward
Opposition
Movement of the thumb across Palm to touch tips of fingers of the same hand
Temperomandibular bones
Mandible/temporal bones
Type of joint (temperomandibular)
Combined hinge/planar joints
Glenohumeral (shoulder) bones
Humerus, scapula bones
Type of joint (glenohumeral)
Ball and socket joint
Humeroulnar/humeralradial (elbow) bones
Humerus ulna radius
Type of joint (elbow)
Hinge joint
Coxal (hip) bones
Femur os coaxae
Type of joint (hip)
Ball and socket joint
Tibiofemoral (knee) bones
Tibia femur
Type of joint (knee)
Modified hinge joint
Meniscus
Thin fibrous cartilage between the surfaces of the knee
Crucial element ligaments
A pair of ligaments that cross each other in the knee
Osteoarthritis
Chronic disease characterized by progressive defer nation of the cartilage of the joints
Athroplasty
Repair of a diseased joint
Rheumatoid arthritis
Inflammation of e arterial walls associated with Rheumatic disorder
Sprain
Painful wrenching/laceration of the ligaments of a joint
Strain
Injure/impart by overuse or over exertion
Bursitis
Inflammation of bursa especially in the shoulder knee or elbow joint
Arm (Upper extremity)
Part of the upper limb between shoulder and elbow