Unit 6

Question 1

6 types of synovial joints

Answer 1

1. Plane joint
2. Hinge joint
3. Pivot joint
4. Condyloid joint
5. Saddle joint
6. Ball and socket joint

Question 2

Plane joint

Answer 2

Bones glide over one another through a plane and don’t rotate around an axis.

Carpal bones- ware to say hello

Question 3

Hinge joint

Answer 3

Hinge in a door where the movement involves rotation around one axis or uniaxial movement.

Elbow and knee joints. The movement of the anti-brachium and the lower leg is through the sagittal plane where the radius and all of the forearm and the tibia of the lower leg rotate around a left to right horizontal axis that is perpendicular to the sagittal plane.

Question 4

Pivot joint

Answer 4

Are also uniaxial, rotating around one axis. Hey bone moves through the transverse plain as it pivots around and access perpendicular to that plane that runs the length of our bodies

Articulation between the atlas and the axis vertebrae. The Atlas rotates and pivots around the dens of the axis through the transverse plane when you nod your head “no” to a question.

Question 5

Condyloid joint

Answer 5

Are biaxial rotating around two axes.

Atlas and occipital bone when you nod your head yes the movement is through the sagittal plane and when you move your ear toward your shoulder, the movement is through the frontal plane

Question 6

Saddle joint

Answer 6

Are biaxial rotating around two axes.
Special joint of your thumb. Joint allows for movement within the frontal plane, but also allows the thumb to be opposable

Question 7

Ball and socket joint

Answer 7

Joint that allows movement around multiple axes

The shoulder and hip are examples of ball and socket joints in these joints, the head rotates within the cavity or depression, allowing for movement through all three planes, sagittal, transverse, and frontal

Question 8

Flexion

Answer 8

When the body moves out of anatomical position. The angle of the line is 180 degrees. Angle decreases or becomes acute.

Question 9

Extension

Answer 9

Is when the body moves back into anatomical position. If you move it more than 180 degrees it becomes obtuse this movement is hyperextension.

Question 10

Abduction

Answer 10

Is when the body moves out of anatomical position. When you move away from your body within the frontal plane
“ abducted by aliens”

Question 11

Adduction

Answer 11

When you put your body back into anatomical position.

When you adduct your arms, you are adding them back to your body

Question 12

Rotation

Answer 12

Is when a bone rotates around another bone this occurs as the Atlas rotates around the axis
when you nod your head no.

Question 13

Pronation

Answer 13

When the radius rotates around the ulna causing the palms to face posteriorly out of anatomical position

Question 14

Supination

Answer 14

When the radius rotates around the all the moving the body back into anatomical position where the palms are facing anteriorly

Question 15

Circumduction

Answer 15

Is a movement that is described as drawing the circumference of a circle. Shoulder joint.

Question 16

Protraction

Answer 16

Movement in the transverse and sagittal plane. As you move your mandible forward within the transverse plane, you are performing this movement

Question 17

Retraction

Answer 17

As you move your mandible back within the transverse plane, you are performing the movement

Question 18

Elevation

Answer 18

When you chew and talk, your mandible is moving up, which is elevation

Question 19

Depression

Answer 19

When your mandible is moving down within the Sagittal plane

Question 20

Inversion

Answer 20

When you point your toes inward

Question 21

Eversion

Answer 21

When you point your toes outward

Question 22

Dorsiflexion

Answer 22

As you walk, you lift your toes toward the sky

Question 23

Plantar flexion

Answer 23

When you point your toes downward to plant your foot back into the ground