31 Questions
How are skeletal muscles named based on the direction of their fibers?
Rectus, oblique, transverse, orbicularis
What do muscles classified as 'pennate' have in common?
Feather-like fiber patterns
What type of muscle classification is based on anatomical regions or landmarks used in the name?
Location classification
Which term describes a muscle with fiber patterns lined up along the long axis and a central bulge referred to as the 'belly'?
Parallel
What is the term used to describe muscle naming based on size and shape?
Shape and size classification
What is the fixed immovable attachment point of a muscle called?
Origin
Which muscle type is characterized by having attachment points that are parallel to the long axis of the muscle?
Unipennate
What movement describes decreasing the joint angle?
Flexion
Which muscle is a flexor of the elbow joint?
Biceps brachii
What is the movable attachment point of a muscle called?
Insertion
Which type of muscle has attachment points that converge toward a single tendon?
Convergent
What movement describes moving a body part toward the midline of the body?
Adduction
What is the shortening of muscle fiber length called?
Contraction
"Retraction" primarily involves which body part?
"Move jaw posterior"
Which term describes decreasing the joint angle?
Flexion
What is the term for muscles that are named based on anatomical regions of the body or landmarks used in the name?
Location
Which term describes muscles with attachment points that converge toward a single tendon?
Convergent
What is the term used to describe muscle naming based on size and shape?
Shape
Which term describes muscles with fiber patterns lined up along the long axis and a central bulge referred to as the 'belly'?
Parallel
What type of muscle classification involves feather-like fascicle arrangement, such as unipennate and multipennate?
Pennate
Which term describes muscles with fiber patterns arranged in concentric layers?
Circular
Which term describes turning a body part on its axis?
Rotation
What is the term for moving a body part away from the midline of the body?
Abduction
Which muscle type is characterized by having attachment points that converge toward a single tendon?
Unipennate
What is the term used to describe the fixed, immovable attachment point of a muscle?
Origin
What type of muscle classification is based on size and shape?
Fusiform
What movement describes decreasing the joint angle?
Extension
What movement describes twisting the wrist to face backward?
Pronation
What is the term for moving a body part toward the midline of the body?
Adduction
Which term describes lifting a body part superiorly?
Elevation
What type of muscle has fibers running parallel to the long axis and a central bulge known as the 'belly'?
Parallel
Learn about the naming conventions and characteristics of skeletal muscles, including direction of fibers, location, size, shape, fascicle arrangement, origin/insertion, number of origins, and actions. Understand how muscles are named based on fiber direction and anatomical location.
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