Chapter 8 Questions

Question 1

What 3 groups are joints

Answer 1

Fribrous cartilaginous synovial

Question 2

What are immovable joints called

Answer 2

Synarthrotic

Question 3

What are slightly moveable joints

Answer 3

Aphiarothrotic

Question 4

Freely moveable joints?

Answer 4

Diarthrotic

Question 5

What are the 6 synovial joints

Answer 5

Ball and socket (spheroidal). Condylar( ellipsoidal). Plane( gliding). Hinge. Pivot (trochoid). Saddle.

Question 6

What joint is when the ball shaped head of one bone articulates with cup shaped socket of another. Found in the shoulder and hip

Answer 6

Ball and socket

Question 7

What joint permits multiaxial movement

Answer 7

Ball and socket

Question 8

What joint has an oval shaped head of one bones that articulates with the elliptical cavity of another

Answer 8

Consular or ellipsoidal

Question 9

What synovial joint allows back and forth movement but no rotation? Found in metacarpals and phalanges

Answer 9

Condylar or ellipsoidal

Question 10

What joints have articulating surfaces that are nearly flat or slightly curved in the wrist and ankle, articular process of vertebrae. Ribs 2-7.

Answer 10

Plane or gliding

Question 11

What synovial joint allows sliding, back and forth and twisting

Answer 11

Plane or gliding

Question 12

What synovial joint has a convex surface that allows one bone to articulate with concave surface of another

Answer 12

Hinge

Question 13

What movement does a hinge joint allow? Where are they?

Answer 13

Flexion and extension. Elbows and phalanges

Question 14

What synovial joint has a cylindrical surface of one bone hat articulates with ring of bone and ligament

Answer 14

Pivot or trochoid.

Question 15

What joint allows rotations

Answer 15

Pivot or trochoid. Radius and ulna. Head and neck.

Question 16

What synovial joint has articulating surfaces that both concave and convex regions; surface of one bone fits complementary surface of another

Answer 16

Saddle

Question 17

Turning palm upward

Answer 17

Supination

Question 18

Decreasing angle between parts

Answer 18

Flexion

Question 19

Moving part forward

Answer 19

Protraction

Question 20

Moving part around an axis

Answer 20

Rotation

Question 21

Moving part toward midline

Answer 21

Adduction

Question 22

Turning the foot so the plantar surface faces laterally and

Answer 22

eversion

Question 23

Increasing angle between parts

Answer 23

Extension

Question 24

Lowering part

Answer 24

Depression

Question 25

Turning palm downward

Answer 25

Pronation

Question 26

Moving part away from midline

Answer 26

Abduction

Question 27

Movements that occur between the humerus and ulna are hinge. - flexion and extension. The head of the radius of free to rotate in the annular ligament. This provides movement of pronation and supination

Answer 27

Describe the movements in the elbow joint

Question 28

Describe how the articulate surfaces of the hip joint are held together

Answer 28

Ligamentum Capitis attaches to Fovea Capitis on the head of the femur and to connective tissue in the acetabulum; which carries blood vessels to head of the femur. The acetabular labrum (ring of fibrocartilage) at the rim of the acetabulum deepens the cavity of the acetabulum. It encloses the head of the femur and holds it securely in place. A cylindrical joint capsule reinforced with ligaments surrounds the articulating structures and connects the neck of the femur to the margin of the acetabulum.

Question 29

Explain why there is less movement in the hip joint that in the shoulder joint

Answer 29

Muscles surround the joint capsule of the hip. The articulating parts of the hip are held closely together more so than the shoulder joint which allows less freedom of movement.

Question 30

Explain the function of the meniscus of the knee

Answer 30

2 fibrocartilaginous menisci separate the articulating surfaces of the femur and tibia and help align them.

Question 31

What has a C shape with a thick rim and thin center; attaches to the head of tibia

Answer 31

Menisci

Question 32

What form depressions that fit the corresponding consumes of the femur

Answer 32

Medial and lateral menisci