HES 202 EXAM QUESTIONS AND ANSWERS LATEST
UPDATE
is a specialized receptor that is located between the muscle and the tendon
Golgi tendon organ
the Golgi tendon organ is located in ... with the muscle and signals information
about the... or, ... being applied to the muscle.
series, load, force
A Golgi tendon organ is made up of a capsule containing numerous ... fibers,
collagen
The organ is innervated by primary afferents called Group ... fibers, which have
specialized endings that weave in between the collagen fibers.
Ib,
When force is applied to a muscle, the ... is stretched, causing the collagen fibers
to squeeze and distort the membranes of the ... sensory endings. As a result, the
afferent is ... , and it fires action potentials to signal the amount of ...
GTO, primary afferent, depolarized, force
At the resting position, the ... of spindles in the antagonist muscle (triceps) fire at
a ... rate to encode the present ... of the muscle, and the ... afferents of the Golgi
tendon organs of the agonist (biceps) muscle fire at a ... rate.
Ia afferents, steady, length, Ib, low
When a light object is placed in the hand, there is ... change in the firing rate of
either afferent. When the hand starts to rise, the triceps muscle is stretched, and
the ... afferent fibers increase their ... as a function of muscle length. The .. fibers
do not change appreciably, because the light object does not add much load to
the muscle.
little, Ia, firing rate, Ib,
GTO vs muscle spindle fibres
MS: signal information about the length and velocity of a muscle
GTO signal information about the load or force applied to a muscle
Test Your Knowledge
What is the function of a muscle spindle?
Muscle receptors that provide feedback to the central nervous system about muscle
length (stretch) and rate of length change
What is alpha-gamma co-activation?
During a voluntary contraction, we activate both alpha MNs and gamma MNs together
so the spindle maintains its sensitivity during shortening
Why does a tendon tap cause a reflexive kick?
Spindles lengthen and Ia (primaries) sensitive to stretch activate MN via monosynaptic
reflex
GTOs are located in the...
tendon junction
Spindles are spread throughout the muscle belly and lie in...
Parallel
UPDATE
is a specialized receptor that is located between the muscle and the tendon
Golgi tendon organ
the Golgi tendon organ is located in ... with the muscle and signals information
about the... or, ... being applied to the muscle.
series, load, force
A Golgi tendon organ is made up of a capsule containing numerous ... fibers,
collagen
The organ is innervated by primary afferents called Group ... fibers, which have
specialized endings that weave in between the collagen fibers.
Ib,
When force is applied to a muscle, the ... is stretched, causing the collagen fibers
to squeeze and distort the membranes of the ... sensory endings. As a result, the
afferent is ... , and it fires action potentials to signal the amount of ...
GTO, primary afferent, depolarized, force
At the resting position, the ... of spindles in the antagonist muscle (triceps) fire at
a ... rate to encode the present ... of the muscle, and the ... afferents of the Golgi
tendon organs of the agonist (biceps) muscle fire at a ... rate.
Ia afferents, steady, length, Ib, low
When a light object is placed in the hand, there is ... change in the firing rate of
either afferent. When the hand starts to rise, the triceps muscle is stretched, and
the ... afferent fibers increase their ... as a function of muscle length. The .. fibers
do not change appreciably, because the light object does not add much load to
the muscle.
little, Ia, firing rate, Ib,
GTO vs muscle spindle fibres
MS: signal information about the length and velocity of a muscle
GTO signal information about the load or force applied to a muscle
Test Your Knowledge
What is the function of a muscle spindle?
Muscle receptors that provide feedback to the central nervous system about muscle
length (stretch) and rate of length change
What is alpha-gamma co-activation?
During a voluntary contraction, we activate both alpha MNs and gamma MNs together
so the spindle maintains its sensitivity during shortening
Why does a tendon tap cause a reflexive kick?
Spindles lengthen and Ia (primaries) sensitive to stretch activate MN via monosynaptic
reflex
GTOs are located in the...
tendon junction
Spindles are spread throughout the muscle belly and lie in...
Parallel
