Muscoskeletal System TBL Flashcards
Antagonistic muscles
commonly form tubes
Enhance each other’s actions
Stabilise joints
Produce opposite functions
Produce opposite functions
Which of the following statements about muscle is NOT true
Troponin houses the calcium receptor for contraction activation
The calcium is stored in the sarcoplasmic recticulum
The thin filament is called actin
Tropomyosin houses the calcium receptor for contraction activation
Tropomyosin houses the calcium receptor for contraction activation
Skeletal muscle is
Involuntary and non-striated
Involuntary and striated
Voluntary and striated
Voluntary and non-striated
Voluntary and striated
The growth region of a long bone is found in the
Epiphyses
Epiphyseal plate
Diaphysis
Endosteum
Epiphyseal plate
Osteoclasts
Sculpture cells by breaking down the mineral and mineral in the extracellular matrix
Are bone builders filling resorption pits with new mineral and osteoid
Undertake the bone’s synthetic metabolic activities
Develop from osteoprogenitor cells
Sculpture cells by breaking down the mineral and mineral in the extracellular matrix
Which of the following is NOT correct
Compact bone is strong and supports the cortical regions of long bones
The lacunae are old resorption pits housing osteocytes which are derived from mature osteoblasts
The purpose of bone marrow is for blood cell manufacture and triglyceride storage
Trabecular bone is made up of closely packed
Haversian systems with each osteon having its own central canal for its blood supply
Trabecular bone is made up of closely packed Haversian systems with each osteon having its own central canal for its blood supply
Endochondral ossification occurs when
Flat bones receive a scattered mineralisation onto osteoid protein matrix
The condyles of long bones are mineralised first
Cartilage is coated in mineral and the cartilage is degraded and remaining tissue is then covered into bone
Bones are mineralised at the point of the epiphyseal plate
Cartilage is coated in mineral and the cartilage is degraded and remaining tissue is then covered into bone
Which of the following statements about muscle fibres is correct?
Red fibres contract and relax quickly
Fast glycolytic fibres contain a lot of myoglobin
Fast oxidative-glycolytic fibres perform prolonged contraction
White fibres fatigue easily
White fibres fatigue easily
The elbow joint is which of the following joints
Pivot joint
Hinge joint
Ball and socket joint
Saddle joint
Hinge joint
Which of the following best describes a ligament?
It is made of collagen fibres
It anchors muscles to bones
It attaches bone to bone to stabilise joints
It works with muscles to allow movement of joints
It attaches bone to bone to stabilise joints
Sutures of the skull are?
Diathrosis joints
Amphiarthrosis joints
Synarthrosis joints
Gomphosis joints
Synarthrosis joints
Volkmann canals are ?
Found only in spongy bone
Horizontal channels containing blood vessels and nerves
Radiating from the lacunae
Filled with extracellular fluid
Horizontal channels containing blood vessels and nerves
Osteoporosis is the result of
The malfunction of osteoclasts which make the bone become abnormally solid and dense
Wear and tear of the condyles which causes breakdown of joints with pain and inflammation
The loss in bone mass which affects the trabecular bone particularly giving rise to fragility fractures
The autoimmune response causes increased inflammation of the joints and reduced mobility
The loss in bone mass which affects the trabecular bone particularly giving rise to fragility fractures
Advice for patients to maintain healthy bone mass includes the following except
Regular weight bearing exercise
Avoid smoking and large quantities of alcohol
Ensure you have adequate vitamin D and calcium
(Recommended daily intake) as part of a balanced diet
Keep your BMI below 18
Keep your BMI below 18
