human Flashcards
1
Q
Hollow at the back of the knee
A
Popliteal
2
Q
Metabolic vs. static load
A
- Traditionally, the concern was for heavy, exhausting work (called “metabolic” load because of high metabolism: sweating and burning calories). This type of work steadily diminished during the 20th Century, although is still a factor in many jobs.
- A more recent concern is overloading specific muscle groups because of holding the same position for a period of time (called “static” load, i.e. not moving). You don’t sweat or burn calories, but it is fatiguing nonetheless. This type of work steadily increased during the 20th Century.
- Static load is especially stressful in combination with high force and awkward posture, but the primary concern is the amount of time that the muscles are contracted. Even if a muscle is only lightly tensed, with enough time, it can result in pain and fatigue. Associated with anaerobic metabolism
3
Q
photopic system
A
Mediated by the cones Color vision High acuity Central vision Cones adapt more rapidly than rods
4
Q
Scotopic system
A
Mediated by the rods
Achromatic
Low acuity
Peripheral vision (star gazing)
5
Q
wrist extension
A
movement of the hand backwards, towards the posterior side of the forearm.
6
Q
wrist flexion
A
the action of bending your hand down at the wrist, so that your palm faces in toward your arm
7
Q
aerobic metabolism
A
metabolism with oxygen
8
Q
anaerobic metabolism
A
metabolism without oxygen
9
Q
basal metabolic rate
A
lowest level of metabolic rate required to maintain life
10
Q
MPWC
A
Maximum physical work capacity
