Ch 9 Articulations

Question 1

What are articulations?

Answer 1

points of contact between bone and bone

or

between bone and cartilage

or

between bones and teeth

Question 2

What determines range of motion?

Answer 2

tightness of fit between articulating surfaces

precise manner in which surfaces fit together

tightness of tissues that bind bones of joint together

positions of ligaments, muscles, and tendons surrounding joint

Question 3

What are the structural classifications of joints?

Answer 3

Fibrous

Cartilaginous

Synovial

Question 4

What are the functional classifications of joints?

Answer 4

Synarthrosis = immovable

Amphiarthrosis = slightly moveable

Diarthrosis = freely moveable

Question 5

What are the parts of the diarthrosic joint pictured?

Answer 5

Question 6

Where is the joint in a diarthosic joint?

Answer 6

inside synovial cavity

Question 7

Where does the joint capsule connect in a diarthrosic joint?

Answer 7

joint capsule fuses to periosteum. the outside of bone.

Question 8

What kind of cartilage is contained within a diarthosic joint? Fibrous capsule?

Answer 8

hyaline cartilage in freely moveable joint

collagen in fibrous capsule to prevent pulling

Question 9

What are the ligaments in the knee joint?

Answer 9

Question 10

What are the following movements:

Gliding movements

Angular movements

flexion vs. extension vs. hypertension

adduction vs. abduction

Rotational movements

Circumduction movements

Inversion vs. eversion

Protraction vs. retraction

Elevation vs. depression

Supination vs. pronation

Dorsiflexion vs. plantar flexion

Opposition