Exam 4 - Mod 14 (Ch.65,66,67,68) Flashcards
Purpose of the Musculoskeletal system? (4)
*Protect body organs
*Provide support and stability
*Store minerals
*Allow coordinated movement
Connective tissue composes what parts of the musculoskeletal system? (6)
*Bone
*Cartilage
*Ligaments
*Tendons
*Fascia
*Bursae
Connective tissue responsible for what?
support and structure
Voluntary muscle responsible for what?
movement - we consciously control
How many bones in human body?
206 bones
Name 5 bone types
Long, Short, Flat, Irregular, Sesamoid
Characteristics of long bones
Longer then they are wide, with shaft and two enlarged ends
example of a long bone
femur (thigh bone) & humerus (upper arm bone)
Characteristics of a short bone
cubed shape - similar width and length
example of a short bone
Carpals (wrist bones) and tarsals (ankle bones)
Characteristics of flat bones
thin and often curved, provides protection or surface area for muscle attachment
example of a flat bone
skull bones, ribs, sternum
Characteristics of Irregular bones
Complex shapes don’t fit into other categories
Example of a irregular bone
vertebrae (bone of the spine), some facial bones
Goal of a musculoskeletal system assessment
Overall looking for muscle atrophy and symmetry
What testing would be used to obtain objective data during a musculoskeletal system assessment?
Physical exam: Muscle-strength testing
Muscle strength testing is graded on a 0-5 scale what does 0 mean?
0 - No muscle contraction: Complete paralysis.
Muscle strength testing is graded on a 0-5 scale what does 1 mean?
1 - Trace contraction: Slight contraction visible or palpable, but no movement.
Muscle strength testing is graded on a 0-5 scale what does 2 mean?
2 - Poor contraction: Full range of motion with gravity eliminated (e.g., limb can move if supported).
Muscle strength testing is graded on a 0-5 scale what does 3 mean?
3 - Fair contraction: Full range of motion against gravity, but not against resistance.
Muscle strength testing is graded on a 0-5 scale what does 4 mean?
4 - Good contraction: Full range of motion against gravity and some resistance.
Muscle strength testing is graded on a 0-5 scale what does 5 mean?
5 - Normal contraction: Full range of motion against gravity and full resistance.
Nurse identifies muscle weakness completing a skeletal system assessment, what could this indicate?
Neurological issues such as nerve damage or muscle disorders
Why would a functional ability be addressed when completing a musculoskeletal system assessment?
Muscle strength is directly related to a person’s ability to perform daily activities