Lecture 10.2 Flashcards Preview

Human Locomotor Systems > Lecture 10.2 > Flashcards

Flashcards in Lecture 10.2 Deck (30):
1

We are: order, family, genus, species?

Order: Primates
Family: Hominidae
Genus: Homo
Species: Homo Sapiens

2

There are more than ___ primates species

300

3

new world monkeys are found in

south america

4

brachiators are..

animals that swing beneath the branches of trees

5

The strong tail in leaping lemurs helps to

propel them through the air

6

Semibrachiating New world monkeys have a tail for use as

an extra digit - to hold on to branches

7

Arboreal use all four limbs equally, unlike the ...

new world monkeys

8

Homonids do not have a..

tail

9

Chimpanzees knuckle walk meaning they put their weight on the _____ aspect of their middle ______

Chimpanzees knuckle walk meaning they put their weight on the dorsal aspect of their middle phalanges

10

The frankfurt horizontal is..

where the eye socket is looking straight

11

The foramen magnum is

it is more _____in humans than apes

the hole in the base of the skull

it is more anterior in humans than apes

12

the nuchal line(where the neck muscles originate) is ___placed in humans (its also smaller)

the nuchal line(where the neck muscles originate) is inferiorly placed in humans (its also smaller

13

The vetrebral column is more ______ oriented in apes

The vetrebral column is more obliquely oriented in apes

14

Deep to the trapezius there is a muscle in the apes that humans don't have called

onus cervicalus

15

The rhomboids start higher in ____

The rhomboids start higher in apes

16

Basicranial flexion means the...

Basicranial flexion means the cranium sits on top of the facial skeleton in humans

17

The thorax ribcage of a monkey is

deep and narrow

good for quadrupedal locomotion

(braod and wide in humans)

18

The clavicle is ___ in quadrupeds

shorter

19

Apes have a __ ribcage

why does that help?

wide

provide support for abdominal viscera, also provides attachment for muscles

20


The shape of our ribs keeps our centre of ____ as close to the middle as possible

gravity

21

The glenoid cavity in humans and apes faces outward, why is that important

allow the humerus to do a range of motion - including swinging in trees (laterally)

22

True or false

All primates have a clavicle

true

23

The shape of the thorax is ____ in chimpanzee

funnel shaped

(humans are much more barrel shape)

24

Humans have __ribs - apes have ___

humans have 12 ribs - apes have 13

25

The iliac blades are ____ in apes

The iliac blades are longer in apes

26

The pelvis is positioned more _____ in humans than apes

The blades are positioned more laterally in humans than apes

27

there is only a _ shaped curve in the apes

C -shaped curve - no secondary curvatures

28

What are the numbers for apes and humans?


cervical

thoracic

lumbar

sacral

coccygeal

cervical:
Apes: 7
Human:7

thoracic:
Apes: 13
Human: 12

lumbar:
Apes: 3
Human: 5

sacral:
Apes: 6
Human: 5

coccygeal:
Apes: 3-4
Human: 4

29

Dens of C2 ____ angled in apes and monkeys

dorsally angled

30

Spinous processes of cervical vertebrae ___, ending in large ____

Spinous processes of cervical vertebrae long, ending in large knobs