NEW
Font size
WorksheetsChapter 9&10 Muscular Sys Exam Review (Part 1)
Total questions: 46
Worksheet time: 24mins
Which muscle type is found in your stomach, bladder, and intestines?
Skeletal
Smooth
Cardiac
Straight
Which muscles are involuntary?
skeletal
cardiac
smooth
smooth and cardiac
When a muscle contracts, it _______
gets longer
gets shorter
grows hair
Involuntary muscle is
muscle found in the heart
muscle found in the organs
muscle that works automatically
all of these are true
Tendons connect __________ to bone.
Cartilage
Bone
Muscle
Ligaments
The connective tissue sheath that surrounds a muscle fasciculus is the
epimysium
endomysium
perimysium
The connective tissue sheath that surrounds a whole muscle is the
epimysium
endomysium
perimysium
The connective tissue sheath that surrounds a single muscle fiber
epimysium
endomysium
perimysium
Muscles that oppose one another are
synergist
hateful
prime movers
antagonists
The nerve releases a chemical called a
neurotransmitter
neuron
myofibril
cell
Which of the following is a red pigment found in muscles that binds to oxygen?
glycosomes
myoglobin
hemoglobin
mitochondria
The thin filament is made of the protein myosin.
True
False
Tropomyosin
binds to calcium
is part of the thick filament
blocks actins active sites in a relaxed muscle
stabilizes the thick filament
The A band is
is dark and includes overlapping thick and thin filaments
is light and includes just thin filaments
from z disc to z disc
Which of the following is a structure that stores glucose to be used by the mitochondria in muscles to make ATP energy?
glycosomes
myoglobin
hemoglobin
mitochondria
A is pointing to?
I band
Z disk
A band
B is pointing to?
Sarcomere
Z disk
A band
I band
C is pointing to thin ________?
H zone
Z disk
actin
D is pointing to?
H zone
Z disk
A band
I band
E is pointing to?
H zone
Z disk
F is pointing to?
H zone
Actin
Sarcomere
myosin protein
sarcolemma
sarcoplasmic reticulum
thick filament
thin filament
actin, contractile protein
sarcolemma
sarcoplasmic reticulum
thick filament
thin filament
what is the function of Calcium during a skeletal muscle contraction?
connecting to H zone
connecting to troponin and moving the "rope"
connecting to myosin
What causes the force of the contraction?
actin moving
myosin moving
Ca2+ will be released from the sarcoplasmic reticulum then
impulse reaches neuromuscular junction
impulse transmitted along T tubule
ATP binds to sarcoplasmic reticulum
When a cell (neuron/muscle) is resting, the inside of the cell has a ____________ charge.
positive
negative
When a cell (neuron/muscle) is stimulated by an action potential, the inside of the cell changes to a ____________ charge.
positive
negative
The sodium-potassium pump creates _________ change = action potential
magnetic energy
electrical energy
light energy
sound energy
The point at which the nerve cell reaches the sarcolemma of the muscle fiber is the _____.
Neurotransmitter
Acetylcholine
Synaptic cleft
Neuromuscular Junction
The gap between the nerve cell and sarcolemma is the ____ ___.
Synaptic cleft
Neurotransmitter
Motor unit
Neuromuscular junction
What is the specific neurotransmitter that stimulates the movement of the "message" to the surface of the skeletal muscles?
GABA
Acetylcholine
Serotonin
Dopamine
Once the action potential reaches the end of the axon terminal what takes place?
ACh is released into the synaptic cleft.
The muscle contracts.
Calcium is pumped into the Axon terminal stimulating release of ACh.
Once calcium is pumped into the axon terminal what happens?
The muscle contracts
ACh is released into the synaptic cleft.
Sodium pumps into the sarcolemma.
What is the name of the component that houses the neurotransmitters?
Synaptic vesicles
Acetylcholine
Na/K pump
Once ACh binds to Na/K pump on the sarcolemma, what takes place?
Na is pumped into the muscle cell, making the charge inside more positive (+) = action potential
The muscle contracts.
Calcium is pumped into the axon terminal.
Once sodium is pumped into the sarcolemma, what happens?
Action potential is transferred to the sarcolemma (down the T Tubule) to cause contraction.
The process ends and ACh breaks down.
Calcium is pumped into the axon terminal.
ACh is released into the synaptic cleft.
Once ACh has down it's job, what happens?
more ACh is produced
ACh breaks down.
