Unit 4: Notes 5 Flashcards Preview

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Flashcards in Unit 4: Notes 5 Deck (44)
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1

muscles are named according to several factors such as ...?

1. direction of fibers
2. size of muscle
3. location of muscle
4. number of origins
5. location of origin and insertions
6. shape
7. action

2

what are the direction of fibers ?

1. rectus
2. transversus
3. oblique

3

what is rectus?

(straight)

parallel to midline

4

what is transversus?

(transverse)

perpendicular to midline

5

what is oblique

diagonal

6

Maximus

largest in group

7

Minimus

smallest in group

8

medius

medium

9

longus

longest in group

10

brevis

shortest in group

11

latissimus

widest in group

12

Magnus/Major

largest in group

13

minor

smallest in group

14

Vastus

large

15

name some muscles named by location

1. temporalis
2. frontalis
3. lateralis
4. medialis
5. intermedius
6. tibialis (anterior)
7. fibularis (langus)
8. supra (above)
9. infra (below)
10. sub (underneath)
11. occipitalis (above occipital)

16

what is an origin

The point of attachment to the stationary bone

17

what is an insertion

Point of attachment on the moving bone

18

what are the origins on the sternocleidomastoid?

sternum and clavicle

19

what is the insertion on the sternocleidomastoid?

mastoid

20

serratus

saw-toothed

21

orbicularis

Circular

22

platys

flat

23

quadradus

square shaped

24

gracilis

slender

25

flexor

decreases joint angle

26

extensor

increases joint angle

27

adductor

moves bone towards midline of the body

28

abductor

moves bone away midline of body

29

supinator

turns palm up

30

pronator

turns palm down