Arthrology Quiz

58 terms by morob11 

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articulations

joints

arthrology

study of joints

kinesiology

study of muscle and skeletal movements

by how they connect

how are joints classified structurally

synarthrosis

immovable joints

by how much or how little a joint moves

how are joints classified functionally

ampiarthrosis

limited range of motion

diarthrosis

freely moveable joints

fibrous(synarthrosis), cartilaginous(ampiarthrosis), synovial(diarthrosis)

3 types of joints

sutures, gomphoses, syndesmoses

3 types of fibrous joints

gomphoses

attatchment of a tooth to its socket by a periodontal ligament

syndesmoses

joint in which 2 bones are bound by a ligament only (interosseus membrane), have more mobility than the other 2

synchondroses, symphysis

2 types of cartilaginous joints

synchondrosis

bones are bound by hyaline cartilage (costal cartilage)

2 bones are joined by fibrocartilage

symphysis

articular cartilage, articular capsule, synovial fluid, ligaments

components of a synovial joint

synovialcytes

they secret synovial fluid

bursa

pillows of synovial fluid

extracapsular-outside joint capsule, intracapsular-inside joint capsule (ONLY found in knee and hip)

kinds of ligaments

articular disks

absorb shock between 2 bones

tendon sheaths

elongated cylindrical bursae wrapped around a tendon

types of synovial joints

ball and socket (spheroid)
condyloid (ellipsoid)
saddle
gliding (planar)
hinge (ginglymus)
pivot

gliding joints

flat surfaces (intercarpal joints)

pivot joint

one bone fits into the ring of another (proximal radioulnar joint)

condyloid joints

reduced ball and socket (radiocarpal joints of wrist)

saddle joint

shaped like a saddle (sternoclavicular joint)

flexion

decreases the angle of a joint

extension

straightens a joint and returns a body part to anatomical position

hyperextension

extension of a joint beyond 180 degrees

inversion

tips sole of foot inward

eversion

tips sole of foot outward

dorsiflexion

toes point up

plantarflexion

toes point down

pronation

face down

supination

face up

circumduction

movement of a distal end of a body part in a circle

protraction

anterior movement of a body part on the transverse plane

retraction

posterior movement

lateral excursion

sideways movement of the mandible to the left or right

medial excursion

movement of the madible back to the midline

rotator cuff

cuff formed by tendons that are fused to the joint capsule on all sides except the interior

subdeltoid, subacromiae, subcoracoid, subscapular

bursae associated with the shoulder joint

supraspinatous, subscapularis, infraspinatous, teres minae

tendons of what muscles form the rotator cuff

annual

circle

the ulnar and radial collateral ligaments, trochlear notch

what is the elbow joint stabilized by?

ligaments of the hip joint

round ligament(intracapsular), iliofemoral, pubofemoral, ischiofemoral, transverse(extracapsular)

anterior and posterior cruciate ligaments

what are the intracapsular ligaments of the knee?

functions of muscles

movement, stability, control of body openings and passages, heat production, glycemic control (blood glucose concentration)

connective tissues associated with muscles

fascia (superficial and deep)-separates neighboring muscles, epimysium-surrounds muscle, perimysium-covers fasicles, endomysium-covers muscle fibers

aponeurosis

flat tendons

multinucleated

muscle cells are

striated

overlapping arrangements of myofilaments; light and dark bands

myosin(thick), actin(thin)

2 kinds of myofilaments

tropomyosin and troponin

regulatory proteins

structural proteins

dystrophin

sarcomere

unit of contraction

myoglobin

protein that holds oxygen in muscle cells

sarcolemma

endomysium that covers the cell membrane- double layer of endomysium and cell membrane

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