Chapter 4: Muscular System
Clinical Kinesiology for Physical Therapist Assistants, 3rd ed.
Name
For each question, choose the BEST answer.
1.
When discussing muscular attachments, what term refers to the most
movable one?
A.
Reversal of muscle action
B.
Insertion
C.
Proximal site
D.
Origin
2.
What term describes the motion of the origin moving toward the
insertion?
A.
Reversal of muscle action
B.
Concentric contraction
C.
Agonistic movement
D.
Cocontraction
3.
What
A.
B.
C.
D.
4.
Which is not a parallel muscle fiber arrangement?
A.
Triangular
B.
Unipennate
C.
Rhomboidal
D.
Fusiform
5.
What
A.
B.
C.
D.
type of muscle is long and thin with fibers running its entire length?
Oblique muscle fibers
Fusiform muscles
Parallel muscle fibers
Strap muscles
type of motion most commonly occurs within the body?
Rectilinear
Linear
Angular
Curvilinear
6.
Which muscle fiber arrangement tends to be longer, thus having a
greater range of motion potential?
A.
Parallel muscle
B.
Oblique muscle fibers
C.
Saw-toothed shape
D.
Rhomboidal muscles
7.
What type of muscle is four-sided, usually flat, with broad attachments at
each end?
A.
Strap
B.
Fusiform
C.
Rhomboidal
D.
Triangular
8.
What
A.
B.
C.
D.
9.
The functional characteristic of irritability in muscle tissue is the muscle’s
ability to contract when stimulated electrically. What is this defined as?
A.
Contractility
B.
Irritability
C.
Elasticity
D.
Extensibility
10.
What
A.
B.
C.
D.
11.
The _____ of a muscle is the distance from maximum elongation to
maximum shortening?
A.
Tension
B.
Length
C.
Excursion
D.
Stretch
type of muscle is the deltoid?
Bipennate
Unipennate
Triangular
Multipennate
characteristic of muscle refers to the ability to lengthen?
Contractility
Irritability
Elasticity
Extensibility
12.
What is the term for when a muscle reaches a point at which it cannot
shorten any farther?
A.
Excursion
B.
Active insufficiency
C.
Passive insufficiency
D.
Stretch
13.
What is the term to describe the passive flexion of the fingers that occurs
from active extension of the wrist?
A.
Stretching
B.
Passive insufficiency
C.
Active insufficiency
D.
Tenodesis
14.
What type of muscle contraction occurs when force is produced without
changing the length of the muscle?
A.
Isokinetic
B.
Isotonic
C.
Isometric
D.
Eccentric
15.
When performing seated knee extensions with a weight above the ankle,
what type of contraction is performed?
A.
Isokinetic
B.
Isotonic
C.
Isometric
D.
Eccentric
16.
What
A.
B.
C.
D.
17.
What type of contraction occurs when the origin moves away from the
insertion?
A.
Isometric
B.
Concentric
C.
Isotonic
D.
Eccentric
type of contraction is NOT the same as an isometric contraction?
Static
Isotonic
Phasic
None of the above
18.
What type of contraction is produced when speed remains constant but
resistance varies?
A.
Concentric
B.
Isotonic
C.
Eccentric
D.
Isokinetic
19.
What
A.
B.
C.
D.
E.
20.
What term is used to describe when a muscle(s) supports a part and
allows the agonist to work more efficiently?
A.
Concontraction
B.
Synergist
C.
Neutralizer
D.
Stabilizer
21.
What is term used when the agonist and antagonist are contractng
together?
A.
Synergist
B.
Stabilizer
C.
Neutralizer
D.
Cocontraction
22.
What
A.
B.
C.
D.
23.
Tension is force built up within the muscle, which must occur for a
muscle to shorten or lengthen.
A.
True
B.
False
24.
A muscle can shorten to approximately 50% of its normal resting length.
A.
True
B.
False
is the term for the muscle(s) that cause the movement?
Antagonist
Concontraction
Agonist
Assisting mover
Neutralizer
type of exercise is a squat?
Open kinetic chain
Closed kinetic chain
Angle of pull determinant
Concentric
25.
When a muscle contracts, it knows no direction; it simply shortens.
A.
True
B.
False
26.
A muscle is strongest if put in anatomical position befoe contracting.
A.
True
B.
False
27.
In a two-joint muscle, the excursion of the muscle is equal to the range
allowed by the joints it crosses.
A.
True
C.
False
28.
Active insufficiency occurs when a muscle cannot be elongated any farther
without damage to the fibers.
A.
True
B.
False
Generally, an agonist becomes actively insufficient before the antagonist
becomes passively insufficient.
A.
True
B.
False
29.
30.
Eccentric contractions are referred to as lengthening contractions.
A.
True
B.
False