Module 3 - skeletal System Flashcards

(78 cards)

1
Q

Five primary functions of skeletal system

A

Support, storage of minerals and lipids, blood cell production, protection, leverage

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2
Q

What is the axial skeleton and how Many bones is there

A

Forms the longitudinal axis of the body has 80 bones

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3
Q

How many vertebrae are there in the vertebral column

A

24 vertebrae and the sacrum and the coccyx

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4
Q

What bones make up the thoracic cage

A

24 ribs and the sternum

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5
Q

What is the appendicular skeleton

A

All the bones beside the axial Skeleton has 126 bones

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6
Q

What two bones make up the pelvic girdle

A

Two hip bones (coxal bones)

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7
Q

What three fused bones are the coxal bones made of

A

Ilium, Ischium, Pubis

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8
Q

Lower limbs from hips down

A

Femur (thigh bone), patella (knee bone), tibia (thick shin) & fibula (thin shin), tarsal bones, metatarsal bones, phalanges

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9
Q

Six bone shapes

A

Sutural, irregular, short, flat, long, sesamoid

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10
Q

Example of an irregular bone

A

Vertebra

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11
Q

Example of short bones

A

Carpal bones

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12
Q

Example of flat bone

A

Parietal bone

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13
Q

Example of a long bone

A

Humerus

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14
Q

Example of a sesamoid bone

A

Patella

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15
Q

What are articulations

A

Contacts with other bones

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16
Q

What are landmarks

A

Areas of muscle and ligament attachment

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17
Q

What are foramina

A

Openings for nerves and blood vessels

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18
Q

Where do depressions or groves occur on bones

A

Along bone surface

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19
Q

Where do elevations or projections on bones occur

A

At articulations with other bones where tendons and ligaments attach

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20
Q

Where do tunnels occur on bones

A

Where blood and nerves enter bones

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21
Q

What is diaphysis

A

The shaft of a long bone, heavy wall of compact bone with a central space called medullary cavity

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22
Q

What is the epiphysis

A

The wide part at each end of a long bone, articulation with other bones, mostly spongy bone coved by compact bone

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23
Q

What’s cancellous

A

Spongy bone

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24
Q

What’s cortex

A

Compact bone

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25
What is the metaphysis
Where diaphysis and epiphysis meet
26
Describe bone (osseous) tissue
Dense, supportive connect tissue which contains specialised cells which produces a solid matrix of calcium salt deposits around collagen fibers
27
Characteristics of bone tissue
Dense matrix containing deposits of calcium salts and osteocytes with lacunae organised around blood vessels
28
What is the function of canaliculi
Form pathways for blood vessels and allows for exchange of nutrients and wastes
29
What is periosteum
Covers outer surface of bones, consists of outer fibrous and inner cellular layers
30
What amount of bone matrix is protein fibers (collagen)
One third
31
What is the basic unit of compact bone
Osteon
32
How are osteocytes arranged in compact bone
In concentric lamellae around a central canal containing blood vessels
33
What are perforating canals in compact bone
Canals that are perpendicular to the central canal, they carry blood vessels into bone and Marrow
34
Other than collagen what makes up two thirds of bone matrix
Calcium phosphate which reacts with calcium hydroxide to form crystals of hydroxyapatite
35
Two bones that make up pectoral girdle
Clavicle (collar bone) and scapula (shoulder blade)
36
Bones that make up the upper limbs from shoulder to fingertips
Humerus, radius & ulna (radius thick ulna thin), carpal bones, metacarpal, phalanges
37
What does joint structure determine
Direction and distance of movement (range of motion),
38
Joint strength ... As mobility ....
Decreases , increases
39
Three classifications of joints (movement)
Synarthrosis, amphiarthrosis, diarthrosis
40
What does synarthrosis mean
It's an immovable joint
41
What does amphiarthrosis mean
It's a slightly moveable joint
42
What does diarthrosis mean
It's a freely moveable joint
43
Three classifications of joints (structural)
Fibrous joints, cartilaginous joints, synovial joints
44
What are fibrous joints
Articulating bones bound tightly together by fibrous connective tissue
45
What are cartilaginous joints
Articulating bones held tightly together by cartilage
46
What are synovial joints
Articulating bones have a fluid-filled space between them
47
What is synovial fluid
Fluid in synovial joints that contains slippery proteioglycans secreted by fibroblasts
48
Three functions of synovial fluid
Lubrication, nutrient distribution, shock absorption
49
Five accessory structures in synovial joints
Cartilages, fat pads, ligaments, tendons, bursae
50
4 things that stabilise synovial joints and prevent injury by limiting range of motion
Collagen fibers, articulating surfaces and menisci, other bones muscles or fat pads and tendons of articulating bones
51
When you kick your leg forward what is it
Flexion
52
When you kick your leg backwards what is it
Hyperextension
53
When you tilt your head forward what is it
Flexion
54
When you tilt your head back what is it
Hyperextension
55
When lifting your hand up (moving the elbow joint) what is it
Flexion
56
When bringing your hand back down to your side (elbow joint) what is it
Extension
57
When you bring your palm to your wrist what is it
Flexion
58
When your hand is straight what is it
Extension
59
When the back of your hand is brought to your forearm what is it
Hyper extension
60
When you move joints from out from your side I.e bringing your leg or arm to the right or left what's it called
Abduction
61
When you flex/ pull apart your fingers what's this called
Abduction
62
When you move joints from out to into your left or right side what's this called
Adduciton
63
What is circumduction
Motion of Drawing an imaginary circle
64
What is the rotation where the inside of your elbow is pointing away from your body
Lateral rotation
65
What is the rotation where the inside of your elbow is pointing towards your body
Medial rotation
66
When you rotate your palm upwards
Supination
67
When you rotate your palm downwards
Pronation
68
When you tilt your foot in towards your other foot
Inversion
69
When you tilt your foot in the opposite direction of your other foot
Eversion
70
Pointing your toes up
Dorsiflexion
71
Pointing your toes down
Plantar Flexion
72
List the seven major supporting ligaments in the knee bone
Patellar, two popliteal ligaments, anterior and posterior cruciate ligaments, tibial collateral ligament and fibulae collateral ligament
73
Position of the patellar ligament in the knee joint
Anterior
74
Position of the two popliteal ligaments in the knee joint
Posterior
75
Position of the anterior and posterior cruciate ligaments in the knee joint
Inside the joint capsule
76
Position of the tibial collateral ligament in the knee joint
Medial
77
Position of the fibular collateral ligament in the knee joint
Lateral
78
What happens to bones as you age
Bone mass decreases, bones weaken, increases risk of hip fracture, hip dislocation or pelvic fracture