exam 1: pelvic mm and joint 2 Flashcards

1
Q

What are the 2 functions of the Sacroiliac joint

A

Transmit the weight of the trunk to the pelvic limbs when standing

Drive the force of the limbs to the trunk in progression

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2
Q

About how much weight of the body does the thoracic limb handle

A

~40%

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3
Q

About how much weight of the body does the pelvic limb handle

A

~60%

**gives power for body to move forward

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4
Q

what 2 types of joints make up the Sacroiliac joint

A

Cartilaginous joint (semi-mobile)- bones are united by cartilage

Synovial join (mobile)- a fluid filled cavity intervenes between the bones

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5
Q

what is the blue arrow pointing to

A

Cartilaginous synchondroses(rough)

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6
Q

what is the green arrow pointing to

A

Synovial plane (smooth)

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7
Q

Is the sacroiliac joint strong? Flexible?

A

Very strong
small amount of flexibility

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8
Q

what is the blue arrow pointing to

A

Dorsal & ventral sacroiliac ligament

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9
Q

what is wrong with this image (3)

A
  1. sacroiliac luxation
  2. Fracture of pubis
  3. fracture of ischium
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10
Q

what are the blue arrows pointing to

A

Sacrotuberous ligaments

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11
Q

what action does red represent?Blue?

A

red: flexion
blue: extension

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12
Q

How do you name this movement of the left coxal/hip joint?

A

extension

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13
Q

What category of synovial joint does the coxae joint classify as

A

The ball-and-socket or spheroidal
joint

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14
Q

Coxae joint:

Spheroidal joint formed between the ____________ of the acetabulum and the ______ of the femur

A

lunate surface
head

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15
Q

what is the red arrow pointing to

A

Ligament of the head of the femur
(acetabular fossa – fovea of the femoral head)

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16
Q

what is the blue arrow pointing to

A

Transverse acetabular ligament

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17
Q

What is the red arrow pointing to

A

Ligament of the head of the femur (very short)

Is intracapsular but not intraraticular

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18
Q

what is green on this diagram

A

Synovial membrane of hip joint

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19
Q

what is the brown outer layer representing

A

Capsule of hip joint

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20
Q

What is this image showing

A

Dysplastic and Dysplasia/arthritis in the Coxal Joint

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21
Q

Why does the body form arthritis when the coxal joint is dysplastic

A

body’s way to try and stop joint from moving so freely

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22
Q

what is the red arrow pointing to (what is this signs of)?

A

Severe signs of osteoarthritis or arthrosis

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23
Q

Muscles Acting Primarily on the Hip Joint (4)

A

gluteal group
deep group
caudal group
Medial group

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24
Q

Muscles Acting Primarily on the Stifle Joint

A

extensor group
flexor group

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25
Q

Muscles Acting Primarily on the Tarsal and Digital Joints

A

Craniolateral group: flexor of tarsal joint & extensors of the digits

Caudal group: extensors of tarsal joint & flexor of the digits

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26
Q

what muscle is this

A

Tensor fascia lata

27
Q

what muscle is this

A

Superficial gluteal m.

28
Q

what muscle is this

A

Superficial gluteal m.

29
Q

what muscle is this

A

Middle gluteal m.

30
Q

what muscle is this

A

Middle gluteal m.

31
Q

what muscle is this

A

Piriformis m

32
Q

what muscle is this

A

Deep gluteal m.

33
Q

what muscle is the black star on

A

Deep gluteal m.

34
Q

what muscle is this

A

External obturator m.

35
Q

what muscle is this

A

Internal obturator m.

36
Q

what muscle is this

A

Gemelli mm. (twins=2 heads)

37
Q

what muscle is this

A

Quadratus femoris m.

38
Q

what joint is being pointed to

A

Genual joint (Stifle)

39
Q

What types of synovial joints make up the Genual joint (Stifle)

A

Femoropatellar (hinge)
Femorotibial (condylar)
Proximal tibiofibular (plane)

40
Q

what is circled in green

A

Femoropatellar (hinge)

**flex and extend

41
Q

what is circled in red

A

Femorotibial (condylar)

involved condyles

42
Q

what is circled in blue?
List from top to bottom

A

top:Femur – sesamoids of
gastrocnemius m. (fabellae)& Tibia – sesamoid of
popliteus m

bottom:Proximal tibiofibular (plane)

43
Q

what is the largest synovial joint in the body

A

stifle joint

44
Q

what are the Four main ligaments of the stifle joint

A

Lateral collateral lig.
Medial collateral lig.
Cranial cruciate lig.
Caudal cruciate lig

45
Q

Stifle:
what is red pointing to

A

Lateral collateral lig

46
Q

Stifle:
what is blue pointing to

A

Joint capsule

Includes:
Femorotibial
Femoropatellar
Proximal tibiofibular
Sesamoid joints

47
Q

Cranial view of Femoropatellar joint:
what is blue pointing to

A

Lateral & medial femoropatellar ligg.

Attach the patella with the lateral and medial fabellae

48
Q

Cranial view of Femoropatellar joint:

what is the blue arrow pointing to?
orange?

A

blue: Patellar ligament

orange: tibial tuberosity

49
Q

what are the red arrows pointing

A

Patellar fibrocartilages (helps prevent patellar luxation)

50
Q

what is the single red arrow pointing to

A

Infrapatellar body fat.

Fatty body located between the patellar lig and the joint capsule (cushion)

51
Q

what is covering the patella and trochlea of the femur

A

hyaline cartilage (help with friction)

52
Q

what is blue pointing to

A

Cranial cruciate lig.

Prevents:
-cranial displacement
of the tibia against the femur

-hyperextension of the genual joint

-medial rotation of the joint

53
Q

what is red pointing to? What does this do?

A

Caudal cruciate lig.

Prevents:
-caudal displacement of the tibia against the femur

-lateral rotation of the joint

54
Q

what is the yellowish structure

A

Parapatellar
fibrocartilage

55
Q

what is the blue arrow pointing to

A

Infrapatellar
body fat

56
Q

Is this the cranial or caudal cruciate ligament

A

Cranial cruciate lig.

(twisted like a rope; helps make it stronger)

57
Q

Is this the cranial or caudal cruciate ligament

A

caudal cruciate ligament

58
Q

what is red pointing to? blue?

A

red: lateral meniscus
Blue: medial meniscus

59
Q

What is 1

A

Cranial tibial ligg. of menisc

60
Q

what is 2

A

Transverse lig.

61
Q

what is 3

A

Caudal tibial lig. of medial meniscus

62
Q

what are the red arrows pointing to

A

Lateral collateral & Medial collateral Ligament

63
Q

what is the left blue arrow pointing to? right blue arrow?

A

left: Lateral meniscus
right: Meniscofemoral lig.

64
Q

What is the green structure representing

A

Stifle joint capsule