Lab #12 Muscular System Quiz - Muscle Anatomy Flashcards
Match the following terms with their description:
Prime Mover
Antagonist
Synergist
Fixator
Prime Mover - A muscle that has the major responsibility for producing a specific movement is a prime mover, or agonist, of that movement
Antagonist - Muscles that oppose, or reverse, a particular movement are antagonists
Synergists - Stabilizes a joint around which movement is occurring, which in turn helps the agonist function effectively.
Fixator - Stabilized the origin of the agonist and the joint that the origin spans (moves over) in order to help the agonist function most effectively.
Which of the following muscles is named for the direction of muscle fibers?
Gluteus maximus
External obliques
Quadriceps
Adductor
External obliques
Which of the following muscles is named for the number of origins?
Gluteus maximus
External oblique
Quadriceps
Adductor
Quadriceps
Which of the following muscles is named for the relative size of the muscle?
Gluteus maximus
External oblique
Quadriceps
Adductor
Gluteus maximus
Which of the following muscles is named for the action of the muscle?
Gluteus maximus
External oblique
Quadriceps
Adductor
Adductor
An EMG (electromyogram) records the electrical activity from a [___________].
Muscle
Dynamometer
flexor
Ground
No
Decreased
Increased
ATP
Yes
Muscle
This video shows the use of a hand [___________], which measures the amount of force generated by the hand. For a lab like this, we could also use therapy balls of various resistance.
Muscle
Dynamometer
Flexor
Ground
No
Decreased
Increased
ATP
Yes
Dynamometer
The muscles in the forearm that are measured by EMG during this experiment belong to the wrist [__________] group.
Muscle
Dynamometer
Flexor
Ground
No
Decreased
Increased
ATP
Yes
Flexor
In this experiment, the black lead is the [__________]
Muscle
Dynamometer
Flexor
Ground
No
Decrease
Increased
ATP
Yes
Ground
Does the order of the red and green lead matter?
Muscle
Dynamometer
Flexor
Ground
No
Decreased
Increased
ATP
Yes
No
In the experiment in the video, force [____________] over time.
Muscle
Dynamometer
Flexor
Ground
No
Decreased
Increased
ATP
Yes
Decreased
In the experiment, the envelope of the EMG [______________] over time.
Muscle
Dynamometer
Flexor
Ground
No
Decreased
Increased
ATP
Yes
Increased
During the experiment, the amount of [___________] is the muscle decreased as the muscle fatigued
Muscle
Dynamometer
Flexor
Ground
No
Decreased
Increased
ATP
Yes
ATP
Does the last experiment in this video show that muscles are active before force is generated?
Muscle
Dynamometer
Flexor
Ground
No
Decreased
Increased
ATP
Yes
Yes
Experimenters performed an EMG experiment in which participants squeezed three different therapy balls with different levels of resistance. The data from the experiment are given in the table in the previous question, which of the resistance therapy balls generated the GREATEST EMG electrical activity in the muscle?
The white ball
Experimenters performed an EMG experiment in which participants squeezed three different therapy balls with different levels of resistance. The data from the experiment are given in the table of the previous question.
Based on the data in the previous question, which of the resistance therapy balls generated the LEAST EMG electrical activity in the muscle?
the blue ball
the white ball
the red ball
all of the balls provided the same resistance
The red ball
Experimenters performed an EMG experiment in which participants squeezed three different therapy balls with different levels of resistance as shown in the image below. Which of the following muscles were used by the participants in this experiment?
Flexor carpi ulnaris
Palmaris longus
Flexor carpi radialis
All of these are used
All of these are used
