WorksheetsMuscular system review
Total questions: 25
Worksheet time: 13mins
How do cells of the three types of muscle tissues differ from one another automatically?
Skeletal muscle movements can be very forceful and rapid, where areas smooth muscle movements tend to be slow and often rhythmic
Skeletal muscle cells are long multinucleate cells with striations. Cardiac cells are branching, typically uninucleate cells. Smooth muscles cells are spindle-shaped uninucleate cells, nonstriated.
Muscles use bones as levers to bring about the body movements.
Which muscle type has the most elaborate connective tissue wrappings?
Skeletal muscle
Smooth muscle
Cardiac muscle
What does striated mean relative to muscle cells?
Forceful and rapid
Slow and often rhythmic
Striped, or having bands
Responsible for bonding pattern of the skeletal muscle cells.
How do the movement promoted by skeletal muscle differ from those promoted by smooth muscle?
Skeletal muscle cells are long multinucleate cells and smooth muscle cells are spindle-shaped uninucleate cells.
Skeletal muscle movements can be very forceful, or rapid, whereas smooth muscle movements tend to be slow and often rhythmic
The alignment of the bands on the myofilaments are responsible for the banding pattern in skeletal muscle cells.
The axon ending of a motor neuron and the sarcolemma of the skeletal muscle cell.
Specifically, what is responsible for the banding pattern in skeletal muscle cells?
The alignment of the bands on the myofilaments is responsible for the banding pattern in skeletal muscle cells.
The axon ending of a motor neuron and the sarcolemma of the skeletal muscle cell.
Nerve fibers must be myelinated
Exercise defers or reduces the natural loss in muscle mass and strength that occurs in old age.
What two structures are closely associated at a neuromuscular junction?
The axon ending of a motor neuron and the sarcolemma of the skeletal muscle cell
The alignment of the bands
Myofilaments
Isometric contraction
What chemical triggers sliding of the muscle filaments?
Sodium ions enter the cells during action potential generation
Phosphorylation of ADP by CP, stored ATP, and ATP generated by glucose oxidation.
Stored ATP
Calcium ions trigger the sliding of the myofilaments
What ions enter the muscle cell during action potential generation?
Sodium ions enter the cells during action potential generation.
Calcium ions trigger the sliding of the myofilaments
Phosphorylation of ADP by CP, stored ATP, and ATP generated by glucose oxidation.
Stored ATP
Which is a cross-bridge attachment more similar to: a precise rowing team or a person pulling a bucket on a rope out of a well?
A precise rowing team
Pulling a bucket out of a well
What are the three energy sources for skeletal muscle contraction?
Stored ATP
Calcium ions, sodium ions, phosphorus ions
Phosphorylation of ADP by CP, stored ADP, and ATP
ADP
What is the immediate source of energy for muscle contraction?
ADP
Calcium ions
Sodium ions
Stored ATP
Gary is trying with all his might to pull a tree stump out of a ground. It does not budge. Which type of contraction are his muscles undergoing?
Isometric contraction
Abduction
Oxygen deficit
Circular
What is meant by the term 'oxygen deficit'?
Flexion and extension
Muscle that runs straight up the abdomen
Oxygen deficit occurs when a person is not able to take oxygen fast enough to keep their muscles supplied with all the oxygen they need when working vigorously.
Muscle that straightens the spine
To develop big, beautiful skeletal muscles, should your exercise focus be aerobic or resistance type exercise?
Resistance exercise leads to increased muscle size
Aerobic exercise leads to bigger muscles
Neither
What action is being performed by a person who sticks out their thumb to hitch a ride?
Flexion
Circular
Abduction
Extension
What actions take place at the neck when you nod your head up and down as if saying "yes"?
Flexion and extension
Circular
Adduction
Abduction
Based on their names, deduce some characteristics of the following muscles: tibialis anterior, erector spinae, rectus abdominis.
Erector spinae
Rectus abdominis
Tibialis anterior
Neither
What is the fascicle arrangement of the orbicularis oris muscle
Adduction
Flexion
Extension
Circular
IN what way are the fixators and synergist muscles important?
Are synergists in jaw closure
They anchor or aid the activity of the prime mover
Runs straight up the spine
Straighten the spine
Which muscle raises your eyebrow?
Orbicularis oris
Zygomaticus
Frontalis
Trapezius
Which two muscles are synergists in jaw closure?
Erector spinae and latissimus dorsi
Soleus and gastrocnemius
Triceps brachii and quadriceps
Masseter and temporalis
Which muscle group is the prime mover of back extension?
Erector spinae
Clavicle
Deltoid
Trapezius
What structural feature makes the abdominal musculature especially strong for its thickness?
Works vigorously
It's like plywood
Run in different directions
Makes the abdominal wall very strong
Which muscle of the posterior trunk is the synergist of the pectoralis major muscle in arm adduction?
Deltoid
Trapezius
Latissimus dorsi
Sternocleidomastoid
Which muscle group is the antagonist of the hamstring muscles?
Triceps brachii
Latissimus dorsi
Quadriceps
Erector spinae
