Quiz 4 - Health Challenges To Musculoskeletal System Flashcards
The complement of the bone matrix that gives bone tensile strength is:
A) calcium
B) phosphate
C) magnesium
D) collagen
Collagen
The major difference between compact bone and spongy bone is the:
A) location within the body
B) organisation of the structural elements
C) activating chemicals in each
D) types of minerals in the bones matrix
Organisation of structure and elements
The internal structure of bone is maintained by remodelling, a three phase process in which existing bone is reabsorbed and new bone is laid down to replace it. Reabsorption is carried out by bone cells called:
A) osteoblasts
B) haversian system cells
C) osteoclasts
D) precursors stimulating cells
Osteoclasts
Phase 2 of bone remodelling cycle involves bone:
A) activation
B) formation
C) resorption
D) fracturing
Resorption
Which of the following is not a synovial joint in the body:
A) a gliding type found in the hand
B) a spheroid type found in the shoulder
C) a syndesmosis type that connects the vertebrae
D) a hinge type found in the elbow
A syndesmosis type that connects two vertebrae
The main energy source or fuel for skeletal muscle contraction is ?
A) lactic acid
B) ATP
C) actin
D) calcium
ATP
When a muscle acts as the prime mover, it’s called?
A) flexor
B) agonist
C) recruiter
D) antagonist
Agonist
A 65 year old female is admitted to hospital with a pathological, compound, oblique fracture of the femur. Which of the following statements best describes this type of fracture?
A) the fracture line is parallel to the bone
B) the fracture line is vertical to the shade of the bone
C) the fracture line is diagonal to the shaft of the bone
D) the fracture line is perpendicular to the bone
The fracture line is diagonal to the shaft of the bone
A 32 year old obese male begins a jogging routine. A week after beginning he fractured his leg. This fracture is referred to as a(n) ______ fracture.
A) compound
B) Fatigue
C) green stick
D) insufficient
Fatigue
A 35 year old female suffered a broken clavicle following a motor vechicle accident. X rays reveal that the bone surface in the joint partially lost contact with each other. This condition is called:
A) subluxation
B) nonunion
C) dislocation
D) sublimation
Subluxation
A 12 year old female hurts her ankle whilst playing basketball. Tests reveal she tore a ligament. This condition is known as a:
A) sprain
B) strain
C) fracture
D) disunion
Sprain
After running marathon, seven runners were admitted to local hospitals with suspected myoglobinuria ( rhabdomyolysis). What is most likely the cause of this in these athletes?
A) undetected cardiac abnormalities
B) excessive muscular activity
C) undiagnosed hypertension
D) tendon injury
Excessive muscular activity
A 70 year old female present with a hip fracture. She is diagnosed with osteoporosis , a condition caused by an increase in bone:
A) resorption
B) formation
C) mineralisation
D) density
Resorption
A 35 year old female presents with impaired motor function, gradual deafness and visual disturbances. Physical examination reveals asymmetric shape of skull and displaces teeth. X rays reveal thickened and disorganised bones caused by abnormal and excessive bone remodelling. This condition is referred to as:
A) osteoporosis
B) rickets
C) pagets disease
D) osteomyelitis
Pagets disease
The cause of Paget’s disease is:
A) fluoride deficiency
B) unknown at present
C) excess vitamin A
D) osteogenic sarcoma
Unknown at present
