Lecture 1 :Shoulder Joint and Trunk Muscles

Question 1

Arthrology

Answer 1

Study of joints

Question 2

3 types of joints

Answer 2

Immovable, slightly moveable, freely moveable joints

Question 3

Immoveable Joints

Answer 3

Sutures, fibourous

Question 4

Slightly Moveable

Answer 4

Cartilaginous, ribs to costal hyaline cartilages, pubic symphysis, epiphyseal growth cartilages

Question 5

Freely Moveable joints

Answer 5

Synovial (Joint capsule and fluid)

Temporomanidibular joint and joints in extremities

Question 6

Synovial joints

Answer 6

Periosteum is the extension, making the fiborous capusle
Synovial fluid fills the space = No friction
Articular cartilage = Smooth motion

Question 7

Sprain

Answer 7

In a joint,

Fluid fills the capsule, stretching it, movement becomes limited

Question 8

Cracking Knuckle

Answer 8

Popping synovial fluid gas bubbles

Continous noise = bone to bone contact

Question 9

Bursa

Answer 9

Fluid filled sacs around all major joints, underneath the muscle and skin

Question 10

Bursitis

Answer 10

Excessive movement, inflame the bursa
of the shoulder = most common
Cold weather may make it uncomfortable = circulation problem

Question 11

Bone seperate at the acromion and clavicle

Answer 11

Acromioclavicular ligament will be stretched, need surgery and will not heal on its own
Ligament have poor blood supply.

Question 12

Breaking the humerus near the shoulder joint

Answer 12

Muscles pull the bones apart, damage the joint when breaking

= Muscle spas and the joint is immoveable

Question 13

Gout

Answer 13

Metabolic disease
Related to nutrition -> rick and exotic food
You get crystals in the synovial fluid
Medication will get ride of the uric acid in the blood stream that creates this.

Question 14

Syphilis in Joints

Answer 14

Enter joints, destroy the soft tissue and bones

Swells the joints = Disabliing and painful

Question 15

Muscle tissue

Answer 15

high in proteins
Actin and Myosin
Myoglobin -> only found in muscle

Question 16

Myoglobin

Answer 16

Close to hemoglobin in blood cells
Carries oxygen into tissue,
Special molecule more oxygen into muscle fibers
Dark meat = high myoglobin = dark, moist, rich
White meat = low in myoglobin = light color, leaner

Question 17

Rigor mortis

Answer 17

Stiff death
Stiffness in muscle, changes in protein
1 - 7 hours of death, muscle = stiff and hard
Muscles loose stiffness enzymes break muscle down.

Question 18

Muscle Shape

Answer 18

Latissimus = flat,

teres = round

Question 19

Muscle size

Answer 19

Maximus, minimus, major, minor

Question 20

Direction

Answer 20

Rectus = straight, oblique = diagonal, transverse = horizontal

Question 21

Location

Answer 21

Supraspinatus, infraspinatus, pectorals

Question 22

Flex

Answer 22

Joints made smaller

Question 23

Extensor

Answer 23

Angle made larger, joints larger

Question 24

Abductor

Answer 24

Moving muscles away from the midline

Question 25

Adduction

Answer 25

Moving muscles to the midline

Question 26

Pronation

Answer 26

Rotate out of anatomical position

Question 27

Supination

Answer 27

Rotate to the midline

Question 28

Medial/ lateral rotation

Answer 28

At hip and shoulder

Question 29

Circumduction

Answer 29

Rotate in full circle

Question 30

Pectoralis Major

Answer 30

Foundation of the breasts

Question 31

Radical Masectomy

Answer 31

Remove breast and all chest muscle Limiting movement of that one side Cancer will not enter chest muscle

Question 32

Breast reconstruction

Answer 32

Implant is put underneath the pectoralis major | Protect the bag

Question 33

Muscles of abdoment

Answer 33

act together to flex the spine

Question 34

Serratus anterior

Answer 34

Pull scapula to the front Abduction, flex hard, Also called the sexy serratus = need to be fit to see it

Question 35

Trapezius

Answer 35

Shrug exercise to build it up

Question 36

Latissimus Dorsi

Answer 36

Swimmers muscle, Pulls on the humerus toward the pelvis

Question 37

Deltoid

Answer 37

Aids in backward extension of the arm

Question 38

Erector spinae Muscle

Answer 38

Group to straighten the spine Exten the spine and pulls head to pelvis, Opposes the abdominal Bend at the waist, challenge the erector spinae, bend at the knees to lift

Question 39

SITS

Answer 39

Supraspinatus, Infraspinatus, Teres Minor, Subscapularis

Question 40

Rhomboideus Minor and Rhomboideus Major

Answer 40

Adduct Scapula, with minors above major