Grips/prehensions: ch 13 (hand)

Question 1

used when an object must be help forcefully while being moved by more proximal muscles

Answer 1

power grip

Question 2

finger flexors grip, finger extensors assist, thumb adducts with wrist in neutral or slightly extended position

Answer 2

power grip

Question 3

cylindrical grip, spherical grip, and hook grip are

Answer 3

power grips

Question 4

used when an object must be manipulated in a finer type movement

Answer 4

precision grip/prehension

Question 5

tips of fingers and thumb is used, palm usually isn’t involved, and proximal joints don’t move

Answer 5

precision grip/prehension

Question 6

pad to pad (pinch) grip, tripod grasp (three jaw chuck), pad to side (lateral prehension), lumbrical (plate) grip, tip to tip (pincer) grip, side to side grip are

Answer 6

precision grip/prehension

Question 7

pinch grip

Answer 7

pad to pad

Question 8

MCP and PIP joints of fingers flexed, thumb abducted, distal joints are extended bringing pads of fingers and thumbs together

Answer 8

pad to pad

Question 9

three jaw chuck grip

Answer 9

tripod grasp

Question 10

most common; uses three jaws to hold an object

Answer 10

tripod grasp

Question 11

holding mechanism

Answer 11

chuck

Question 12

lateral prehension

Answer 12

pad to side

Question 13

pad of extended thumb pressing an object against radial side of index finger

Answer 13

pad to side

Question 14

strong grip but allows less fine movement

Answer 14

pad to side

Question 15

thumb adduction helps; terminal device of upper extremity prosthesis adapts this type of grip

Answer 15

pad to side

Question 16

plate grip

Answer 16

lumbrical grip

Question 17

MCP flexed, PIP and DIP extended, thumb opposed fingers holding an object horizontal

Answer 17

lumbrical grip

Question 18

action is to flex MCP and extended IPs

Answer 18

lumbrical grip

Question 19

pincer grip

Answer 19

tip to tip

Question 20

hard to do with long finger nails

Answer 20

tip to tip

Question 21

bringing tip of thumb up against the tip of another digit usually index finger

Answer 21

tip to tip

Question 22

requires adduction of index finger and abduction of middle finger

Answer 22

side to side

Question 23

weak grip and not much precision; thumb is not involved

Answer 23

side to side