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Anatomy > Pelvic Muscles > Flashcards

Pelvic Muscles Flashcards

1
Q

Articulations

A

equivalent to joints

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2
Q

All joints permit free movement (T/F)

A

False

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3
Q

How can you tell if a muscle generates a lot of force

A

its fibers are not parallel to the tendon

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4
Q

bony muscle attachement

A

fibers connect to bone

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5
Q

non-bony muscle attachement

A

fibers eventually get to bone (fascia first)

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6
Q

Bony attachments are stronger than fascia attachments (T/F)

A

False
Fascia is stronger

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7
Q

Do muscles flex

A

no
Joints do

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8
Q

Fibrous joints

A

bones connected by dense CT (ligaments)

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9
Q

Mobility of fibrous joints

A

limited
more stretchy when young

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10
Q

cartilaginous joints

A

Bones connected by cartilage

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11
Q

cartilaginous joint movement

A

some movement

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12
Q

fibrous joint examples

A

interosseous ligament
tooth anchor
skull sutures

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13
Q

examples of cartilaginous joints

A

epiphyseal plate
pelvic symphysis
vertebrae joints

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14
Q

synovial joints

A

bones separated by fluid filled cavity (capsule)

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15
Q

synovial joint movement

A

highly movable

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16
Q

examples of synovial joints

A

movable appendage joints

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17
Q

Why do synovial joints move so much

A

they have space to adjust, similar to a bursa

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18
Q

Why is a synovial joint called a potential space

A

it is a fluid filled cavity that lacks air or circulation

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19
Q

Why do joints crack

A

joint capsules have a defined volume
when the size of the capsule changes space is filled with the state change making a noise

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20
Q

Simple synovial joints

A

one pair of articular surfaces

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21
Q

composite synovial joints

A

> 2 articular surfaces
ex: stifle

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22
Q

Synovial joint types

A

plane
pivot
ellipsoidal
spheroidal
hinge
condylar
saddle

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23
Q

plane joints

A

Flat connection (no gap)
ex: b/w vertebrae
Limited movement (one plane)

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24
Q

pivot joints

A

notch and ball
ex: axis to atlas or radius to ulna
rotational movement

25
Q

Ellipsoidal joints

A

round convex and concave surfaces (almost ball and socket)
quite a bit of movement
ex: wrist

26
Q

Saddle joint

A

flat concave to flat convex surfaces
movement in one plane (no side to side)
ex: phalanges

27
Q

spheroidal joints

A

ball and socket
most movement possible in a joint
ex: hip

28
Q

hinge joints

A

ridges and groves allow movement on only one plane
ligaments hold steady
ex: fetlock and elbow

29
Q

what holds hinge joints in place

A

collateral ligaments (one on each side)

30
Q

condylar joints

A

2 condyles (knuckles) on concave surfaces
mostly hinge movement (some sliding and rotation)

31
Q

What prevents condylar joint from moving left and right

A

collateral ligaments

32
Q

what prevents condylar joints from rotating

A

cruciate ligaments (crossed)

33
Q

Stifle (knee) joints have…

A

shock absorbers called menisci

34
Q

Menisci

A

c-shaped fribrocartiaginous discs
shock absorbers and rotation preventers

35
Q

Cranial cruciate ligament

A

stifle joint
prevents femur sliding caudally during weight bearing

36
Q

caudal cruciate ligament

A

prevents femur from sliding cranially while bearing weight

37
Q

What is the difference between the wrist and the ankle

A

wrist flexes the same as digits
ankle flexes opposite the digits

38
Q

muscles that flex the toes…

A

extend the ankle

39
Q

muscles that flex the fingers…

A

flex the joints

40
Q

Where does abduction or adduction of the arm happen

A

the shoulder

41
Q

where does abduction or adduction of the leg happen

A

the hip

42
Q

Medial rotation of the foot =

A

plantar surface faces medially

43
Q

lateral rotation of the foot=

A

plantar surface faces laterally

44
Q

there are less pelvic muscles then thoracic muscles (T/F)

A

False

45
Q

Why do pelvic appendages have more muscles

A

for locomotion power

46
Q

agonist of hip flexion

A

iliopsoas

47
Q

agonists of hip extension

A

middle glut and biceps femoris

48
Q

agonist of hindlimb aBduction

A

middle glut and biceps femoris

49
Q

agonists of hip flexion

A

iliopsoas

50
Q

agonists of hindlimb aDduction

A

adductor magnus et brevis (dogs)
adductor magnus (cats)

51
Q

Agonists of medial femur rotation

A

middle glut

52
Q

agonists of lateral femur rotation

A

small pelvic association

53
Q

agonists of stifle joint flexion

A

biceps femoris

54
Q

agonists of stifle extension

A

quadriceps femoris

55
Q

agonists of medial rotation of the tibia

A

popliteus

56
Q

agonists of tarsal joint extension

A

gastrocnemius

57
Q

agonist of tarsal joint flexion

A

cranial tibial

58
Q

*medial hind paw rotation=

A

plantar surface facing laterally

59
Q
A

Anatomy (6 decks)

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