COMPLETE QUESTIONS AND
VERIFIED ANSWERS CURRENTLY
TESTED AND APPROVED
Select the term that does not belong with the others.
a. muscle atrophy
b. immobilization
c. decrease in number of myofibrils
D
d. loss of nerve stimulation
O
e. increased vascularity - ✔✔✔ Correct Answer > increased vascularity
N
O
The type of muscle that can contract with the greatest force is the - ✔✔✔ Correct Answer >
T
pennate
C
O
The figure illustrates a lateral view of the right eyeball. What does "B" represent? - ✔✔✔
PY
Correct Answer > superior oblique
Label muscle "A" on the diagram. - ✔✔✔ Correct Answer > serratus anterior
The figure illustrates a lateral view of the right eyeball. What does "C" represent? - ✔✔✔
Correct Answer > superior rectus
Label muscle "C" on the diagram. - ✔✔✔ Correct Answer > external oblique
The figure illustrates a lateral view of the right eyeball. What does "A" represent? - ✔✔✔
Correct Answer > inferior rectus
,Muscles can be classified by their shape and fascicle orientation. Which shape has the muscle
fibers that run the length of the muscle and taper at each end? - ✔✔✔ Correct Answer >
Fusiform
Label muscle "D" on the diagram. - ✔✔✔ Correct Answer > rectus abdominis
If a person drums their fingers on the table, they would be using which of the following
muscles? - ✔✔✔ Correct Answer > flexor digitorum profundus
In order for both eyes to direct their gaze to the right, which of the following muscles are used?
(1) right lateral rectus
D
O
(2) right medial rectus
N
(3) left lateral rectus
O
(4) left medial rectus - ✔✔✔ Correct Answer > 1 and 4
T
C
The extensor pollicis brevis moves the - ✔✔✔ Correct Answer > thumb
O
PY
In the body's lever systems, the - ✔✔✔ Correct Answer > joint represents the fulcrum point.
The orbicularis oculi muscle - ✔✔✔ Correct Answer > causes crow's feet wrinkles
An antagonist is - ✔✔✔ Correct Answer > a muscle working in opposition to another muscle
Contracting the right sternocleidomastoid muscle would - ✔✔✔ Correct Answer > rotate the
head toward the left.
,When you say "ah" and stick out your tongue, which muscle do you use? - ✔✔✔ Correct Answer
> genioglossus
Which of the following muscles is involved in chewing gum? - ✔✔✔ Correct Answer > masseter
In order to stabilize the hyoid so that the larynx can be elevated in swallowing, the _____
muscle group is used. - ✔✔✔ Correct Answer > suprahyoid
The term "shin splints" is associated with - ✔✔✔ Correct Answer > injuries resulting from
excessive stress on the tibialis anterior.
D
Local hyperpolarization in a synapse is called a(an) - ✔✔✔ Correct Answer > inhibitory
O
postsynaptic potential.
N
O
Which of the following events will lead to depolarization? - ✔✔✔ Correct Answer > an increase
T
in K+ ions in the extracellular fluid The figure illustrates the Action Potential. What does "D"
represent? - ✔✔✔ Correct Answer > threshold
C
O
PY
When a neuron releases a neuromodulator that _____ the release of neurotransmitters from
another neuron, this is called presynaptic facilitation. - ✔✔✔ Correct Answer > facilitation
The absolute refractory period assures - ✔✔✔ Correct Answer > completion of repolarization
before another action potential
During depolarization of the plasma membrane, - ✔✔✔ Correct
Answer > sodium ions move rapidly into the cell
Saltatory conduction of an action potential means that - ✔✔✔ Correct Answer > an action
potential is conducted from one node of Ranvier to the next node
, Which of the following is true? - ✔✔✔ Correct Answer > Unmyelinated axons
rest in invaginations of Schwann cells or oligodendrocytes
Clusters of gray matter deep within the brain are called - ✔✔✔ Correct Answer > nuclei
Which of the following is NOT a neuroglia of the CNS? - ✔✔✔ Correct Answer > satellite cells
Neurons in the skin that are responsible for detecting pain are - ✔✔✔ Correct Answer > pseudo-
unipolar
D
O
Protein synthesis in neurons occurs in - ✔✔✔ Correct Answer > cell bodies or soma
N
O
Schwann cells differ from oligodendrocytes in which of the following ways? - ✔✔✔ Correct
T
Answer > Schwann cells form a myelin sheath around a portion of only one axon, while
oligodendrocytes can surround portions of several axons.
C
O
The central nervous system - ✔✔✔ Correct Answer > is the site for processing information
PY
What does "D" represent on the diagram? - ✔✔✔ Correct Answer >
Z disk
The __________ contains the genetic information of the cell - ✔✔✔
Correct Answer > nuclueus
Heather is watching a movie. What type of chemical pathway do her muscles depend upon at this
time? - ✔✔✔ Correct Answer > aerobic respiration