exam 1: pelvic mm and joint 2

Question 1

What are the 2 functions of the Sacroiliac joint

Answer 1

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

Drive the force of the limbs to the trunk in progression

Question 2

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

Answer 2

~40%

Question 3

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

Answer 3

~60%

**gives power for body to move forward

Question 4

what 2 types of joints make up the Sacroiliac joint

Answer 4

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

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

Question 5

what is the blue arrow pointing to

Answer 5

Cartilaginous synchondroses(rough)

Question 6

what is the green arrow pointing to

Answer 6

Synovial plane (smooth)

Question 7

Is the sacroiliac joint strong? Flexible?

Answer 7

Very strong
small amount of flexibility

Question 8

what is the blue arrow pointing to

Answer 8

Dorsal & ventral sacroiliac ligament

Question 9

what is wrong with this image (3)

Answer 9

1. sacroiliac luxation
2. Fracture of pubis
3. fracture of ischium

Question 10

what are the blue arrows pointing to

Answer 10

Sacrotuberous ligaments

Question 11

what action does red represent?Blue?

Answer 11

red: flexion
blue: extension

Question 12

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

Answer 12

extension

Question 13

What category of synovial joint does the coxae joint classify as

Answer 13

The ball-and-socket or spheroidal
joint

Question 14

Coxae joint:

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

Answer 14

lunate surface
head

Question 15

what is the red arrow pointing to

Answer 15

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

Question 16

what is the blue arrow pointing to

Answer 16

Transverse acetabular ligament

Question 17

What is the red arrow pointing to

Answer 17

Ligament of the head of the femur (very short)

Is intracapsular but not intraraticular

Question 18

what is green on this diagram

Answer 18

Synovial membrane of hip joint

Question 19

what is the brown outer layer representing

Answer 19

Capsule of hip joint

Question 20

What is this image showing

Answer 20

Dysplastic and Dysplasia/arthritis in the Coxal Joint

Question 21

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

Answer 21

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

Question 22

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

Answer 22

Severe signs of osteoarthritis or arthrosis

Question 23

Muscles Acting Primarily on the Hip Joint (4)

Answer 23

gluteal group
deep group
caudal group
Medial group

Question 24

Muscles Acting Primarily on the Stifle Joint

Answer 24

extensor group
flexor group

Question 25

Muscles Acting Primarily on the Tarsal and Digital Joints

Answer 25

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

Question 26

what muscle is this

Answer 26

Tensor fascia lata

Question 27

what muscle is this

Answer 27

Superficial gluteal m.

Question 28

what muscle is this

Answer 28

Superficial gluteal m.

Question 29

what muscle is this

Answer 29

Middle gluteal m.

Question 30

what muscle is this

Answer 30

Middle gluteal m.

Question 31

what muscle is this

Answer 31

Piriformis m

Question 32

what muscle is this

Answer 32

Deep gluteal m.

Question 33

what muscle is the black star on

Answer 33

Deep gluteal m.

Question 34

what muscle is this

Answer 34

External obturator m.

Question 35

what muscle is this

Answer 35

Internal obturator m.

Question 36

what muscle is this

Answer 36

Gemelli mm. (twins=2 heads)

Question 37

what muscle is this

Answer 37

Quadratus femoris m.

Question 38

what joint is being pointed to

Answer 38

Genual joint (Stifle)

Question 39

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

Answer 39

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

Question 40

what is circled in green

Answer 40

Femoropatellar (hinge) **flex and extend

Question 41

what is circled in red

Answer 41

Femorotibial (condylar) **involved condyles**

Question 42

what is circled in blue? List from top to bottom

Answer 42

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

Question 43

what is the largest synovial joint in the body

Answer 43

stifle joint

Question 44

what are the Four main ligaments of the stifle joint

Answer 44

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

Question 45

Stifle: what is red pointing to

Answer 45

Lateral collateral lig

Question 46

Stifle: what is blue pointing to

Answer 46

Joint capsule Includes: Femorotibial Femoropatellar Proximal tibiofibular Sesamoid joints

Question 47

Cranial view of Femoropatellar joint: what is blue pointing to

Answer 47

Lateral & medial femoropatellar ligg. Attach the patella with the lateral and medial fabellae

Question 48

Cranial view of Femoropatellar joint: what is the blue arrow pointing to? orange?

Answer 48

blue: Patellar ligament orange: tibial tuberosity

Question 49

what are the red arrows pointing

Answer 49

Patellar fibrocartilages (helps prevent patellar luxation)

Question 50

what is the single red arrow pointing to

Answer 50

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

Question 51

what is covering the patella and trochlea of the femur

Answer 51

hyaline cartilage (help with friction)

Question 52

what is blue pointing to

Answer 52

Cranial cruciate lig. Prevents: -cranial displacement of the tibia against the femur -hyperextension of the genual joint -medial rotation of the joint

Question 53

what is red pointing to? What does this do?

Answer 53

Caudal cruciate lig. Prevents: -caudal displacement of the tibia against the femur -lateral rotation of the joint

Question 54

what is the yellowish structure

Answer 54

Parapatellar fibrocartilage

Question 55

what is the blue arrow pointing to

Answer 55

Infrapatellar body fat

Question 56

Is this the cranial or caudal cruciate ligament

Answer 56

Cranial cruciate lig. (twisted like a rope; helps make it stronger)

Question 57

Is this the cranial or caudal cruciate ligament

Answer 57

caudal cruciate ligament

Question 58

what is red pointing to? blue?

Answer 58

red: lateral meniscus Blue: medial meniscus

Question 59

What is 1

Answer 59

Cranial tibial ligg. of menisc

Question 60

what is 2

Answer 60

Transverse lig.

Question 61

what is 3

Answer 61

Caudal tibial lig. of medial meniscus

Question 62

what are the red arrows pointing to

Answer 62

Lateral collateral & Medial collateral Ligament

Question 63

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

Answer 63

left: Lateral meniscus right: Meniscofemoral lig.

Question 64

What is the green structure representing

Answer 64

Stifle joint capsule