Topic 3 Muscles Flashcards
Naming Muscles by shape - what do Deltoid shape muscles look like?
like a triangle
Naming Muscles by shape - what do Rhombus muscles look like
like a diamond BUT more like a square flipped on its tip
Naming Muscles by shape - what do Quadrate muscles look like
like a square
Naming Muscles by shape - what do Serrated muscles look like
like a serrated blade.
Naming Muscles by Size- How large is a Maximus muscle?
the Largest muscle of the group
Naming Muscles by Size- How large is a Medius muscle
the mid range/medium size muscle in the group
Naming Muscles by Size- How large is a Minimus Muscle
The smallest size muscle in the group
Naming Muscles by Size- How long is a Brevis muscle
short
Naming Muscles by Size- How long is a longus muscle
long
Naming Muscles Relative location - in what direction from midline is a lateralis
away from midline
Naming Muscles Relative location - in what direction from midline is a medialis
toward the midline
Naming Muscles Action - A Flexor increases or decreases the angle of a joint?
a flexor decreases the angle at the joint.
Naming Muscles Action - A Extensor increases or decreases the angle of a joint?
a Extensor increases the angle of the joint
Naming Muscles Action - A Abductor Moves the bone towards or away from midline?
Moves the bone away from midline
Naming Muscles Number of Origins - how many origins does Bi and Tri prefix nomenclature indicate respectively
2 and 3 origins respectively
Naming Muscles Number of muscles in a group - Quadriceps is a muscle group made up of how many muscles?
4
Naming Skeletal Muscles Direction of the fibers - Rectus fibers indicate fibers in what direction?
in a straight direction
Naming Skeletal Muscles Direction of the fibers - Oblique fibers indicate fibers in what direction?
fibers at an angle
Naming Skeletal muscles Attachment sites - What is always named first?
the origin/s
How it works; Tendons, origins and Insertions - (to move) How is tension created?
by the contraction of fibers
How it works; Tendons, origins and Insertions - in most skeletal muscles where is most of the tension transferred to?
The tendons
How it works; Tendons, origins and Insertions - What are tendons? (what type of connective tissue are they made of), and where do they connect
Strong bands of dense regular connective tissue that connects muscle to bones
How it works; Tendons, origins and Insertions - To pull on a bone or change its angle, a skeletal muscle must be ________ to a ________part of the skeleton
attached ,
fixed
How it works; Tendons, origins and Insertions - The movable end of the muscle that attaches to the bone being PULLED is called?
the muscles Insertion
How it works; Tendons, origins and Insertions - The end of a muscle attached to a fixed(stabilized) bone is called?
the origin
How it works; Prime Movers (Agonists) Synergists Fixators and Antagonists - The Principal muscle involved is called the_________ _________ or Agonist
prime mover or Agonist
How it works; Prime Movers (Agonists) Synergists Fixators and Antagonists - The Synergist does what?
Assists the prime movers in the action
How it works; Prime Movers (Agonists) Synergists Fixators and Antagonists - Synergist can also be a ______ that stabilizes the bone that is the attachment for the prime movers origin.
fixator
How it works; Prime Movers (Agonists) Synergists Fixators and Antagonists - An antagonist action/job is?
a muscle with the opposite action of the prime mover
How it works; Prime Movers (Agonists) Synergists Fixators and Antagonists - The first important function Antagonists play in muscle function is?
One: they maintain body or limb position (ex holding arm out or standing erect.)
How it works; Prime Movers (Agonists) Synergists Fixators and Antagonists - The second important function Antagonists play in muscle function is?
they control rapid movement
How it works; Prime Movers (Agonists) Synergists Fixators and Antagonists - EX. Extending the knee the quads are the _______and the hamstrings are the _________
agonist,
antagonist
Skeletal Muscles that do not pull on bone 1. include the muscles that produce ___________
facial expressions
Skeletal Muscles that do not pull on bone 2. - the _______, and external__________ and __________ __________
tongue,
urinary and anal sphincters
Skeletal Muscles that do not pull on bone 3. -
the diaphragm
