PSIO 201 Exam 3 Study exam (100% correct and
graded A+)
1). Three types of muscle
Ans: skeletal
cardiac
smooth
2). Basic function of muscle
Ans: generate tension
3). Functions of skeletal muscle
Ans: locomotion
facial expression
posture and body position
regulation of body temperature
4). Voluntary contraction
Ans: requires nervous system input
some skeletal muscles are automatic, but we have the ability to change their activity (ex:
diaphragm)
5). Muscles pull or push? how do you predict the action of a muscle?
Ans: pull
predict the action of a muscle based on location
6). Origin
Ans: the place where the muscle starts on a bone - stays stationary
Insertion
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, 7).
Ans: the place where the muscle ends on a bone - moves toward the origin
8). Standard anatomical position movement
Ans: everything is extended except feet
9). How to name a movement
Ans: action + name of segment that moves
ex: flexion of the forearm
10). Types of body movements
Ans: flexion/extension
abduction/adduction
11). Flexion/extension
Ans: movement to reduce (flexion) or increase (extension) the angle between
articulating bones at a joint
typically occur along a sagittal plane (anterior/posterior)
12). Flexion/extension examples
Ans: elbow joint
knee joint
hip joint
shoulder joint
13). Abduction/adduction
Ans: movement away or toward the longitudinal axis (or midline)
typically occur along a frontal plane in reference to the midline of the body
14). Reverse muscle action (rma)
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, Ans: when the insertion is anchored, the origin moves towards the insertion
ex: pull-ups
15). Classifying a muscles based on action
Ans: agonist
antagonist
synergist (includes fixator)
16). Agonist
Ans: muscle primarily responsible for the movement (aka prime mover)
17). Antagonist
Ans: muscle which opposes the action of the agonist
18). Synergist
Ans: assists the agonist in making the action more efficient
19). Fixator
Ans: special synergists which help to prevent movement at the muscle origin
20). Classification of muscles based on action example: abduction of the arm
Ans: agonist: deltoid
antagonist: latissimus dorsi
synergist: supraspinatus
fixator: trapezius
21). How do muscles apply to leverage?
Ans: muscles act to facilitate movement at a fulcrum by exerting force on the lever
22). Example of lever systems
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graded A+)
1). Three types of muscle
Ans: skeletal
cardiac
smooth
2). Basic function of muscle
Ans: generate tension
3). Functions of skeletal muscle
Ans: locomotion
facial expression
posture and body position
regulation of body temperature
4). Voluntary contraction
Ans: requires nervous system input
some skeletal muscles are automatic, but we have the ability to change their activity (ex:
diaphragm)
5). Muscles pull or push? how do you predict the action of a muscle?
Ans: pull
predict the action of a muscle based on location
6). Origin
Ans: the place where the muscle starts on a bone - stays stationary
Insertion
PaperStoc.com Page 1 of 19
, 7).
Ans: the place where the muscle ends on a bone - moves toward the origin
8). Standard anatomical position movement
Ans: everything is extended except feet
9). How to name a movement
Ans: action + name of segment that moves
ex: flexion of the forearm
10). Types of body movements
Ans: flexion/extension
abduction/adduction
11). Flexion/extension
Ans: movement to reduce (flexion) or increase (extension) the angle between
articulating bones at a joint
typically occur along a sagittal plane (anterior/posterior)
12). Flexion/extension examples
Ans: elbow joint
knee joint
hip joint
shoulder joint
13). Abduction/adduction
Ans: movement away or toward the longitudinal axis (or midline)
typically occur along a frontal plane in reference to the midline of the body
14). Reverse muscle action (rma)
PaperStoc.com Page 2 of 19
, Ans: when the insertion is anchored, the origin moves towards the insertion
ex: pull-ups
15). Classifying a muscles based on action
Ans: agonist
antagonist
synergist (includes fixator)
16). Agonist
Ans: muscle primarily responsible for the movement (aka prime mover)
17). Antagonist
Ans: muscle which opposes the action of the agonist
18). Synergist
Ans: assists the agonist in making the action more efficient
19). Fixator
Ans: special synergists which help to prevent movement at the muscle origin
20). Classification of muscles based on action example: abduction of the arm
Ans: agonist: deltoid
antagonist: latissimus dorsi
synergist: supraspinatus
fixator: trapezius
21). How do muscles apply to leverage?
Ans: muscles act to facilitate movement at a fulcrum by exerting force on the lever
22). Example of lever systems
PaperStoc.com Page 3 of 19
