Lecture 13: Grasping Flashcards Preview

ANTH 324 Exam 02 > Lecture 13: Grasping > Flashcards

Flashcards in Lecture 13: Grasping Deck (17):
1

What are they 4 types of grips?

1) Scissor
2) Hook
3) Precision
4) Power

2

What does the "Power Grip" do?

- Active squeezing of the palm against other fingers
- Keeps hold of the object

3

What does the "Precision Grip" do?

- Involves the thumb and one or more other fingers
- Palm is not active
- Hold a part of an object more specifically

4

What is the "Universal Joint?"

Saddle, between the first metacarpal and trapezium

5

Hinge joints only permit _____ and______

Flexion; Extension

6

The ability to make _____ ______ was important event in human evolution

Stone Tools

7

Oldowan Tools:
_____ are good for _______

Flakes; Butchering

8

Oldowan Tools:
____ smashes against _____ to produces flakes

Core; Hammerstone

9

Making Stone Tools involved using this grip:

Power Grip

10

Using Stone Tools involved using these grips:

Power and Precision

11

Chimps were able to make stone tool as well as humans.
T/F

False, They were not made as well

12

Comparative Anatomy:
Apes hands are a compromise between ______ and _____

Locomotion
Manipulation

13

What are the 3 differences between Humans and Chimps in regards to stone tool making?

1) Force in Precision Grip
2) Accommodate the shape of the tool
3) Constantly adjust the orientation of the core

14

Ape vs Mankind:
Out of all the primates, whose thumbs are the longest

Humans

15

What are "Broad Ungual Tufts?"

Support large pads, like fingertips, to distribute pressure

16

Orientation of MC Head:
Brings ____ surface of _____ phalanx towards the thumb during ______

Palmar; Proximal
Flexion

17

Who made the first tools?
What 2 reasons back up this claim?

Australopithecus, but no clear indicator
1) Radially oriented 3rd MC head (towards the thumb)
2) Thumb length intermediate between humans and chimps