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Flashcards in Arthrology Deck (25)
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arthrology

the scientific study of joints
the study or description of joints

1

articular cartilage

covers ends of bones where they articulate and reduce friction caused by movement

2

synovial cavity

fluid filled cavity that surrounds the joint to be freely movable

3

synovial membrane

fibrous, connective tissue that lines the joint cavity and forms the synovial capsule
secretes synovial fluid which lubricates the joint and nourishes the cartilage

4

ligaments

attaches bone to bone

5

tendon

attaches muscles to bone

6

fibrous joints

lack a synovial cavity and the bones are held together by dense irregular connective tissue that is rich in collagen fibers

7

surtures

fibrous joint only found between bones of the skull; functionally classified as synarthrosis (immovable)

8

syndesmoses

fibrous joint in which there is a greater distance between the articulating surfaces and more dense irregular connective tissue than in a suture

9

cartiagious joints

lack a synovial cavity and allows little or no movement
bones connected by cartilage

10

synchrondrosis

cartilaginous joint in which the connecting material is hyaline cartilage
classified as amphiarthoses

11

symphysis

cartilaginous joint in which the ends of the articulating bones are covered with hyaline cartilage but a broad flat disc of fibrocartilage connects the bone

12

synovial joint

joint cavity present; functionally classified as a diarthrotic joint because the synovial cavity allows a joint to be freely moved

13

gliding

simple movement: surfaces move back and fourth and from side to side (intercarpal and intertarsal joints, sternoclavicular joints)

14

hinge joint

produce an angular, opening and closing motion like that of a hinged door. movement is usually extension and flexion (knee and elbow)

15

pivot joint

rounded, pointed or conical surface of one bone articulated within a ring primarily rotation (monaxial because it allows rotation only around its longitudinal axis

16

condyloid (ellipsoid)

oval shaped condyle of one bone first into elliptical cavity of another bone. allows movement around two axes, biaxial (second through fifth digits)

17

saddle

triaxial permitting movement around three axes (flexion-extension, abduction-adduction, and rotation)
thumb

18

ball and socket

consists of a ball-like surface of one bone fitting into a cuplike depression of another bone. they provide the widest range of movement (shoulder and hip)

19

synarthrosis

immovable
occurs between bones that come into close contact with one another
ex. suture between flat bones of cranium

20

amphiarthosis

slightly moveable
surfaces are connected by a broad disc of fibrocartilage ligaments
ex. bodies of vertebrae, symphysis, sacroiliac joint, and lower leg

21

diarthrosis

freely moveable
joint is held in place by ligaments
most joints in the skeleton
more complex structures
all are synovial joints
end is covered by articular cartilage and surrounded by synovial capsule

22

fibrous joints

lack a joint cavity : articulating bones held very closely together by fibrous connective tissue

23

serrate

margins of bones are serrated like teeth of a saw

24

squamous

margin one bone overlaps that of the adjacent bone