skeletal system Flashcards

(26 cards)

1
Q

functions of skeletal system

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

how many bones are in the human body

A

206

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3
Q

synovial capsule

A

encloses the joint and lined with the synovial membrane.

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4
Q

synovial membrane

A

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

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5
Q

synovial fluid

A

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

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6
Q

bursae

A

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

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7
Q

cartilage

A

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

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8
Q

ligaments

A

hold bones in place
prevents over-movement

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9
Q

tendons

A

attaches skeletal muscles to bones

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10
Q

what is a synovial joint

A

freely moveable joint

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11
Q

6 types of joints
& examples

A
  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)
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12
Q

flexion

A

bending

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13
Q

extension

A

straightening

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14
Q

adduction

A

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

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15
Q

abduction

A

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

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16
Q

rotation

A

this is when the joint turns around its axis point

17
Q

circumduction

A

this is the circular movement of a limb around a joint

18
Q

movements at a ball and socket joint

A

flexion, extension, abduction, adduction, rotation, circumduction

19
Q

movements at a hinge joint

A

flexion, extension

20
Q

movements at a pivot joint

21
Q

movements at a saddle joint

A

flexion, extension, abduction, adduction

22
Q

movements at a condyloid joint

A

flexion, extension, abduction, adduction

23
Q

movements at a gliding joint

A

a little gliding in all directions

24
Q

dorsiflexion

A

movement where toes are brought closer to the shins

25
plantar flexion
movement where the sole of the foot is brought closer to the back of the leg
26
long term effects of exercise on skeletal system
- 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