skeletal system

Question 1

functions of skeletal system

Answer 1

1. support
2. protection
3. movement
4. shape
5. blood cell production
6. mineral storage

Question 2

how many bones are in the human body

Answer 2

206

Question 3

synovial capsule

Answer 3

encloses the joint and lined with the synovial membrane.

Question 4

synovial membrane

Answer 4

lines the synovial capsule. it produces a think slippery substance known as synovial fluid

Question 5

synovial fluid

Answer 5

-lubricates the joint
-nourishes the cartilage
-acts as a shock absorber between bones

Question 6

bursae

Answer 6

small sac like structure
filled with fluid
-acts as cushions to reduced friction between bones tendons and muscles

Question 7

cartilage

Answer 7

smooth cartilage covers the end of each bone surface
-acts as a cushion and shock absorber between the bones

Question 8

ligaments

Answer 8

hold bones in place
prevents over-movement

Question 9

tendons

Answer 9

attaches skeletal muscles to bones

Question 10

what is a synovial joint

Answer 10

freely moveable joint

Question 11

6 types of joints
& examples

Answer 11

1. ball & socket (hip and shoulder)
2. condyloid (Wrist)
3. saddle (thumb)
4. pivot (neck)
5. hinge (knee & hip)
6. plane/ gliding (hand and feet)

Question 12

flexion

Answer 12

bending

Question 13

extension

Answer 13

straightening

Question 14

adduction

Answer 14

this is the movement of a body part towards the midline of the body

Question 15

abduction

Answer 15

this is the movement of a body part away from the midline of the body

Question 16

rotation

Answer 16

this is when the joint turns around its axis point

Question 17

circumduction

Answer 17

this is the circular movement of a limb around a joint

Question 18

movements at a ball and socket joint

Answer 18

flexion, extension, abduction, adduction, rotation, circumduction

Question 19

movements at a hinge joint

Answer 19

flexion, extension

Question 20

movements at a pivot joint

Answer 20

rotation

Question 21

movements at a saddle joint

Answer 21

flexion, extension, abduction, adduction

Question 22

movements at a condyloid joint

Answer 22

flexion, extension, abduction, adduction

Question 23

movements at a gliding joint

Answer 23

a little gliding in all directions

Question 24

dorsiflexion

Answer 24

movement where toes are brought closer to the shins

Question 25

plantar flexion

Answer 25

movement where the sole of the foot is brought closer to the back of the leg

Question 26

long term effects of exercise on skeletal system

Answer 26

• bones; become stronger and denser due to an increase in osteoblast activity
• cartilage; becomes thicker and provides increased protection and cushioning
• tendons; become thicker and stronger and can withstand greater muscle contractions