Chapter 14: Articulations

Question 1

Describe the subtypes of amphiathroses.

Answer 1

Synchrondoses and symphyses

Question 2

Describe diarthrosis (synovial):

Answer 2

Freely moveable and most of the joints in the body are synovial.

Question 3

What is the most numerous type of joint in the body?

Answer 3

Synovial (diathroses)

Question 4

What is the most complex type of joint in the body?

Answer 4

Synovial (diathroses)

Question 5

List the structure of joints:

Answer 5

Joint capsule, synovial membrane, articular cartilage, joint cavity, menisci, ligaments, and bursae.

Question 6

What is the role of synovial membranes?

Answer 6

It lubricates the structure to avoid friction and allow for movement.

Question 7

Not enough fluid results in _______, too much fluid results in _______.

Answer 7

pain, uncomfortable feeling/swelling/pain.

Question 8

Articulation is:

Answer 8

The point of contact between bones and can be classified based on structure or function.

Question 9

Articulation is characterized by structure, what are their types and subtypes?

Answer 9

Fibrous
Cartilaginous
Synovial**

Question 10

What are uniaxial joints?

Answer 10

Permit movement around ONE axis and only in one plane. Two types: hinge and pivot.

Question 11

What are biaxial joints?

Answer 11

Permit movement around 2 perpendicular axes and 2 perpendicular planes. Two types: saddle and condyloid.

Question 12

multiaxial

Answer 12

Permit movement around 3 or more axes and 3 or more planes. Two types: ball and socket and gliding.

Question 13

What are multiaxial joints?

Answer 13

Permit movement around 3 or more axes and 3 or more planes. Two types: ball and socket and gliding.

Question 14

Types and range of movement at synovial joints:

Answer 14

Angular
Circular
Gliding
Special

Question 15

What is ROM?

Answer 15

Range of motion

Question 16

What are the specific flexion movements mostly for the feet?

Answer 16

Dorsiflexion and plantar flexion

Question 17

Abduction is:

Answer 17

Movement of a part away from the midline of the body

Question 18

Adduction is:

Answer 18

Movement of a part toward the midline of the body

Question 19

Which joints have gliding movements?

Answer 19

Between carpals and tarsals, and between spinal vertebrae.

Question 20

What are the ankle movements:

Answer 20

Inversion- bottom of foot toward midline of the body.

Eversion- bottom of foot toward the side of the body.