Lecture 11.1 Flashcards Preview

Human Locomotor Systems > Lecture 11.1 > Flashcards

Flashcards in Lecture 11.1 Deck (15):
1

Why do we have a longer elliptical outline of femoral condyle, where chimps have a rounder outline?

greater congruence, less of an exertion at the knee joint (we stand upright)

APES NEED A FAR MORE FLEXIBLE KNEE JOINT

2

Discuss the differences of the tibia and fibula in hmans and apes

In humans:
–Tibia robust and WB
–Tibial shaft oriented
perpendicular to proximal
articular surface
–Lateral tibial plateau 92% of
medial
–Fibula slender and NWB


In apes:
–Tibia not as robust
–Fibula mobile and robust
–Lateral tibial plateau 84% of medial

3

Does the chimp foot have an arch?

no

4

In apes, ____ _____inserting onto pelvis helps to maintain hip flexion

In apes, psoas minor inserting onto pelvis helps to maintain hip flexion

5

In apes, gluteus maximus has a ___ area of insertion

In apes, gluteus maximus has a wider area of insertion (on gluteal tuberosity, all the way down the the lateral epicondyle, good extensor)

6

The quadratus ____ is frequntly absent from apes

The quadratus plantae is frequently absent from apes

7

The earliest evidence of fossils aligned with human morphology are from when

6-7 million years ago

8

Facial prognathism is correlated with an increase in the ...

size of the brain case

9

The lungs of ______were large (for the glacial regions they were in), meaning the ribs were wide

The lungs of neanderthals were large (for the glacial regions they were in), meaning the ribs were wide

10

Did the neanderthals' spinous process have the bifid feature?

no - not even all african americans have it

11

Knuckle-walking apes have a distal _____ that has a dorsal margin from which there's a distal projection

Knuckle-walking apes have a distal radius that has a dorsal margin from which there's a distal projection

12

The ____ is much more robust in neanderthals - probably wasn't capable of precision movements (but power movements)

The thumb is much more robust in neanderthals - probably wasn't capable of precision movements (but power movements)

13

The neanderthals pelvis is quite similar to humans but the pubic symphysis is ____

The neanderthals pelvis is quite similar to humans but the pubic symphysis is longer

14

The larger and longer femoral head and neck developed _______

The larger and longer femoral head and neck developed progressively

15

Obligate bipedalism is only in ____

homo's