29 Questions
Which characteristic of muscle tissue describes the ability to generate force and create tension?
Contractility
What is the term used for a decrease in myofibrils or fiber diameter due to a lack of physical activity?
Atrophy
Which characteristic of muscle tissue refers to its ability to be stretched beyond its normal resting length?
Elasticity
What is the term used for an increase in myofibrils or fiber diameter due to an increase in activity or training?
Hypertrophy
In muscle tissue, what is the role of capillaries?
Supply blood to the tissues
What happens at neuromuscular junctions?
Neurons and muscle fibers communicate
What is the function of the origin in relation to movement?
To act as the base for movement
Which term is used for the point of attachment of a muscle tendon to a stationary bone?
Insertion
What describes the attachment of the biceps brachii to the radius?
Both I and II
When a flexion of the elbow occurs, where is the deltoid muscle positioned?
Origin
Which bone serves as the insertion when discussing muscle attachments?
Humerus
What is defined as the attachment of a muscle to a moving bone?
Insertion only
What is the definition of the origin of a muscle?
The bone that normally stays fixed
What is the definition of the insertion of a muscle?
The moveable bone
Which attachment point of a muscle usually stays fixed?
Origin
What is attached to the origin of a muscle?
Proximal attachment
Which term refers to the more distal attachment point of a muscle?
Insertion
In terms of muscle anatomy, what does 'proximal' usually refer to?
Closer to the body or point of reference
What is the main body of a muscle responsible for?
Contracting when the opposite muscle relaxes
Where does the muscle attach that moves the bone?
Site of muscle's attachment to a stationary bone
What is the learning outcome related to identifying skeletal muscles?
Identifying muscles in various body regions
When should one be able to label quadriceps and calf muscles?
For specific sporting movements
What is the purpose of sticking post-it notes with muscle names on a partner's body?
To locate where specific muscles belong on the body
What is the main function of skeletal muscle?
Moving the skeleton
What is the outermost layer that surrounds the entire muscle?
Epimysium
What are muscles composed of?
Fibers arranged in fascicles
What structure is found within muscle cells and contains muscle fibers?
Myocytes
Which connective tissue layer surrounds each individual muscle fiber?
Endomysium
What are the three types of connective tissue in muscles?
Fascia, perimysium, endomysium
This quiz focuses on identifying structures A, B, and C in a diagram representing skeletal muscle anatomy. It also includes definitions of the terms 'origin' and 'insertion' in relation to muscle attachments.
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