WorksheetsAnatomy The Muscular System
Total questions: 18
Worksheet time: 23mins
Which type of muscle is NOT striated?
Skeletal
Cardiac
Smooth
What is a natural byproduct of muscle cell metabolism?
ATP
Synthesis
Protein
Heat
What are the individual muscle fibers (cells) that are arranged in bundles called?
Epimysium
Perimysium
Endomysium
Fascicles
What keeps the body in position giving a steady partial contraction of muscle?
Muscle rigidity
Muscle flaccidity
Muscle tone
Muscle posture
What is a band of dense regular connective tissue that attaches muscle to bone called?
Tendons
Perimysium
Epimysium
Ligaments
What is the name of muscle fibers capacity to undergo shortening and become thicker ?
Synapse
Membrane potential
Contractility
Excitability
What are the two kinds of skeletal muscle fiber made primarily of protein?
Actin, Myosin
Acetylcholine, Myosin
Synapse, Actin
Sarcomere, Actin
In addition to ATP, actin and myosin what else is needed for muscle contraction (this enables actin and myosin to cross bridges)?
Protein
Acetylcholine
Phosphorus
Calcium
What two proteins block the site on actin filaments where cross-bridges form (This occurs when muscles are at rest)?
ADP, ATP
Sarcoplasmic reticulum (SR), Acetylcholine
Troponin, tropomyosin
What in muscle cells stores oxygen?
Glycogen
Myolglobin
Hemoglobin
Fatty acids
Organize these options into the right categories
Voluntary
Involuntary
Involuntar
Striated
Striate
Non-striated
Nuclei
Intercalated discs
Nucleus
Cylinder-shaped muscle fibers
Visceral muscle
Structure fits function
What is the the name of the basic functional unit of skeletal muscles (a) ?
What is the name of the place where nerves meet muscle triggering an electrical impulse?
Synapsis
Sarcoplasmic reticulum
Motor neuron
Neuromuscular junction
Match the following
Concentric contraction
The muscle shortens
Eccentric contraction
The muscle lengthens
Isometric contraction
Increase in muscle tension
When a muscle shrinks in mass what is it called?
Hypertrophy
Atrophy
Match the following movements with the definition
Extension
Straightening out
Flexion
Bending
Rotation
Moving around a longitudinal axis
Supination
Lying face up
Circumduction
Move so the distal end moves in a circle
What muscle elevates the corners of the mouth and lips?
Zygomaticus
Orbicularis oculi
Masseter
Orbicularis oris
Which muscle is responsible for plantar flexing of the foot and is the primary calf muscle?
Tibialis
Quadricep
Fibularis
Gastrocnemius
