WorksheetsA&P chapter 9 pt A- Dr. Mudd
Total questions: 58
Worksheet time: 29mins
What does understanding skeletal muscle tissue help you to do effectively?
Treat strained muscles with RICE
Improve cardiovascular health
Enhance flexibility
Increase bone density
What percentage of the body's mass is made up of muscle tissue?
Nearly one-third
Nearly half
Nearly two-thirds
Nearly one-quarter
What energy transformation is muscle tissue capable of?
Electrical energy to thermal energy
Chemical energy to light energy
Chemical energy to mechanical energy
Thermal energy to chemical energy
Which of the following is NOT a focus when investigating muscle tissue?
Types of muscle tissue
Characteristics of muscle tissue
Muscle functions
Muscle color
Which of the following are prefixes for muscle?
Myo, mys, and sarco
Neuro, osteo, and cardio
Hemo, hepato, and nephro
Dermato, gastro, and entero
What are the three types of muscle tissue?
Skeletal, Cardiac, and Smooth
Connective, Epithelial, and Nervous
Adipose, Cartilage, and Bone
Tendon, Ligament, and Fascia
Which muscle cells are elongated and referred to as muscle fibers?
Skeletal and Smooth
Cardiac and Smooth
Skeletal and Cardiac
Cardiac and Connective
What are skeletal muscles attached to?
Bones and skin
Heart and lungs
Stomach and intestines
Brain and nerves
What is a characteristic of skeletal muscle fibers?
Shortest of all muscle fibers
Longest of all muscle fibers
Medium length muscle fibers
No specific length
What is another name for skeletal muscle?
Involuntary muscle
Cardiac muscle
Voluntary muscle
Smooth muscle
Which of the following is NOT a key word for skeletal muscle?
Skeletal
Striated
Involuntary
Voluntary
Where is cardiac muscle tissue found?
In the lungs
In the heart
In the liver
In the kidneys
What is a characteristic of cardiac muscle tissue?
Voluntary control
Non-striated
Involuntary control
Found in the stomach
Which of the following is NOT a key word for cardiac muscle?
Cardiac
Striated
Voluntary
Involuntary
What is the function of the heart's own pacemaker in cardiac muscle?
To stop the heart
To contract at a steady rate
To increase blood pressure
To control breathing
Where is smooth muscle tissue typically found?
In the heart
In the walls of hollow organs
Attached to bones
In the skin
Which of the following is NOT a characteristic of smooth muscle?
Striated
Involuntary
Found in airways
Non-striated
What are the key words associated with smooth muscle?
Cardiac, striated, voluntary
Skeletal, striated, involuntary
Visceral, nonstriated, involuntary
Muscular, striated, voluntary
Where are skeletal muscles typically located?
Walls of the heart
Attached to bones or skin
Walls of hollow visceral organs
Inside large arteries
What is the cell shape and appearance of cardiac muscle?
Single, very long, cylindrical, multinucleate cells with striations
Branching chains of cells; uni- or binucleate; striations
Single, spindle-shaped, uninucleate; no striations
Circular, multinucleate; no striations
Which type of muscle is found in the walls of hollow visceral organs?
Skeletal muscle
Cardiac muscle
Smooth muscle
Striated muscle
Which characteristic of muscle tissue refers to the ability to receive and respond to stimuli?
Contractility
Extensibility
Excitability
Elasticity
What is the ability of muscle tissue to shorten forcibly when stimulated called?
Elasticity
Contractility
Extensibility
Excitability
Which characteristic of muscle tissue allows it to be stretched?
Elasticity
Excitability
Extensibility
Contractility
What is the term for the ability of muscle tissue to recoil to its resting length?
Elasticity
Contractility
Extensibility
Excitability
Which of the following is a function of muscles related to movement?
Stabilize joints
Produce movement
Generate heat
Maintain posture
What is an example of a movement produced by muscles?
Sleeping
Walking
Reading
Listening
How do muscles help in maintaining body temperature?
By stabilizing joints
By maintaining posture
By generating heat as they contract
By producing movement
Which function of muscles is responsible for maintaining posture and body position?
Produce movement
Stabilize joints
Maintain posture and body position
Generate heat
Which of the following is NOT a feature of skeletal muscle?
Nerve and blood supply
Connective tissue sheaths
Attachments
Bone marrow
What does each muscle receive to function properly?
Nerve, artery, and veins
Bone, cartilage, and ligaments
Skin, hair, and nails
Tendons, joints, and muscles
What do consciously controlled skeletal muscles have to control activity?
Nerves supplying every fiber
Blood vessels supplying every fiber
Hormones regulating every fiber
Enzymes activating every fiber
What do contracting muscle fibers require in large amounts?
Oxygen and nutrients
Carbon dioxide and waste
Hormones and enzymes
Vitamins and minerals
What must be removed quickly from contracting muscle fibers?
Waste products
Oxygen
Nutrients
Hormones
What type of connective tissue surrounds the entire muscle and may blend with fascia?
Perimysium
Endomysium
Epimysium
Myomysium
Which connective tissue sheath surrounds groups of muscle fibers, also known as fascicles?
Epimysium
Perimysium
Endomysium
Sarcolemma
What is the connective tissue called that surrounds each individual muscle fiber?
Epimysium
Perimysium
Endomysium
Myomysium
Which connective tissue sheath surrounds the entire muscle?
Epimysium
Perimysium
Endomysium
Myofibril
What is the connective tissue that wraps around a fascicle?
Epimysium
Perimysium
Endomysium
Sarcolemma
Which connective tissue sheath is found between individual muscle fibers?
Epimysium
Perimysium
Endomysium
Sarcomere
What is the term for the attachment of a muscle to a movable bone?
Origin
Insertion
Direct
Indirect
Which type of muscle attachment involves the epimysium fusing to the periosteum of bone?
Indirect
Insertion
Direct
Origin
What is the term for the attachment of a muscle to an immovable or less movable bone?
Insertion
Direct
Indirect
Origin
In indirect muscle attachments, what structures extend beyond the muscle?
Periosteum
Epimysium
Tendon or aponeurosis
Cartilage
What is the connective tissue that wraps around a fascicle in skeletal muscle?
Epimysium
Perimysium
Endomysium
Tendon
Which connective tissue layer is found between individual muscle fibers?
Epimysium
Perimysium
Endomysium
Blood vessel
What is the outermost connective tissue layer of skeletal muscle?
Epimysium
Perimysium
Endomysium
Muscle fiber
What is the connective tissue wrapping that covers a muscle externally?
Perimysium
Endomysium
Epimysium
Sarcolemma
What is a fascicle in the context of skeletal muscle structure?
A single muscle fiber
A discrete bundle of muscle cells
A connective tissue sheath
A nerve fiber
Which connective tissue surrounds a fascicle?
Epimysium
Endomysium
Perimysium
Sarcolemma
What is the appearance of a muscle fiber?
Smooth and unbanded
Elongated and multinucleate with a banded appearance
Short and single-nucleated
Round and non-striated
What is the sarcolemma in muscle fibers?
Muscle fiber plasma membrane
Muscle fiber cytoplasm
Glycogen storage organelle
Oxygen storage protein
What is the function of glycosomes in muscle fibers?
Oxygen storage
Glycogen storage
Protein synthesis
Calcium storage
Which of the following is a modified organelle in muscle fibers?
Mitochondria
Ribosomes
Myofibrils
Lysosomes
What is the role of myoglobin in muscle fibers?
Glycogen storage
Oxygen storage
Protein synthesis
Calcium release
What percentage of muscle cell volume do myofibrils account for?
60%
70%
80%
90%
How many myofibrils can a single muscle fiber contain?
100s
1000s
10s
10,000s
Which of the following is a feature of myofibrils?
Nuclei
Mitochondria
Sarcomeres
Ribosomes
