Test 2b Flashcards
2 bones of the shoulder girdle
Clavicle, scapulae
Collar bone
Clavicle
Shoulder blade
Scapulae
What is the joint between shoulder girdle and humerus
Glenohumeral joint
What does the clavicle medially attach to?
Sternal manubrium
What is the joint between clavicle and sternal manubrium
Sternoclavicular joint
What does the clavicle do?
Prevents shoulder dislocation
How is the scapulae held onto the trunk of the body
Muscles
WHat is the scapula able to slid/move on?
Thoracic rib cage
SHallow socket for shoulder joint
Glenoid
Site of separated shoulder injury
Acromioclavicular joint
Arm bone
Humerus
Forearm bones
Radius, ulna
The _____ bone of the forearm rotates over the _____ bone of the forearm
Radius, ulna
How many bones does the hand have
27
3 types of bones found in the hand
Carpal, metacarpal, phalanges
How many carpal bones are in the hand
8
How many metacarpals are in the hand
5
How many phalanges are in the hand
14
8 carpal bones of the hand
Scaphoid, lunate, triquetrum, pisiform, trapezium, trapezoid, capitate, hamate
What is the pelvic girdle formed by
2 coxal bones
What is the bony pelvis formed by
2 coxal bones, sacrum, coccyx
Coxal bones are formed by the fusion of what three bones
Ilium, ischium, pubis
Deep socket for hip
Acetabulum
9 ways female pelvises differ from males
Larger and more circular, more shallow, lighter and thinner, ilia flare more laterally, sacrum is shorter and less curved, outlet is larger, ischial spines are shorter and further apart, pubic arch is more rounded, angle of pubic arch is wider
Thigh bone
Femur
Leg bones
Tibia, fibula
Which of the leg bones is medial
Tibia
How many bones does the foot have
26
3 types of bones of the foot
tarsals, metatarsals, phalanges
How many tarsals does the foot have
7
How many metatarsals does the foot have
5
How many phalanges does the foot have
14
How many arches does the foot have
3
What are the three arches of the foot
transverse, 2 longitudinal (medial, lateral)
Heel bones
Calcaneus
Only bone that directly contacts distal end of tibia
Talus
2 bones that carry most of the body’s weight
Calcaneus, talus
Medical name for a club foot
CTEV (congenital talipes equnovarus)
3 causes of a club foot
gneetic, breech positioning, connective tissue disorder
3 types of joints
Fibrous, cartilaginous, synovial
Do fibrous joints move?
No
Do cartilaginous joints move
A little
Do synovial joints move
Freely
What covers the end of bones
articular cartilage
Encloses joint surfaces by a sleeve or capsule of fibrous tissue
Fibrous articular capsule
Encloses cavity which contains synovial fluid
Joint capsule
Fibrous (structure) -> _____ (function)
Synarthrosis
Synovial (structure) -> _____ (function)
Diarthrosis
What determines which movements are allowed at a particular joint?
Shapes of the bone’s surfaces
How many axes of motion do sliding, gliding motions have?
0
4 examples of joints with one axis of motion
Fingers, toes, elbow, knee
2 examples of joints with two axes of motion
wrist, ankle
2 examples of joints with multiple axes of motion
hip, shoulder
Name for shoulder joint
Glenohumeral joint
Name for ankle joint
talocrural joint
Name for hip joint
coxal joint
name for jaw joint
temporomandibular joint (TMJ)
Name for knuckle joint
Metacarpophalangeal joint (MCP)
Name for finger joints
Interphalangeal joints (IP)
2 types of IP joint
Distal (DIP), proximal (PIP)
A break in the bone
fracture
A break that does not penetrate the skin
close fracture (simple fracture)
A break where the bone ends penetrate skin
Open fracture (compound fracture)
Realignment of broken bone ends
reduction
Use of a cast or splint
closed reduction
Surgical realignment of a broken bone
Open reduction
Fracture that breaks into many pieces
Commiuted
Fracture that is crushed bone
Compression
Fracture that is a break that pushes inward (concave)
Depression
Fracture that is a break with excessive twisting forces
Spiral
Fracture that is an incomplete break
Greenstick
Fracture that is a break across bone in transverse plane
Transverse
Fracture that is broken pieces that are forced/driven into one another
Impact
Plates, screws, rods, pins, etc. to fix a bone
ORIF (open reduction internal fixation)
Dense connective tissue that connects bone to bone
ligaments
Excessive stretching or tearing of a ligament or tendon
Sprain
4 ligaments of the knee
MCL, LCL, ACL, PCL
Gives medial stability to the knee
MCL
Gives lateral stability to the knee
LCL
Prevents femur from translating posteriorly and prevents knee hyper extension
ACL
Prevents tibia from translating posteriorly and prevents knee hyper flexion
PCL
How many ligaments of the ankle
4
Provides medial stability of ankle
Medial ankle (deltoid ligament)
3 lateral ankle ligaments
anterior talofibular, posterior talofibular, calcaneofibular
5 ligaments of the elbow
lateral collateral ligament, lateral stability, annular ring, medial stability, medial collateral ligament
Prevents radial head dislocation of elbow
Annular ring
Bone death due to poor or interrupted blood supply
Avascular necrosis (AVN)
Where is AVN most common
Hip, shoulder
Causes of AVN
disease, trauma, fracture, chemotherapy, radiation, steroid use, lupus, RA, sickle cell,