Chapter 8 Test - Part 2 Flashcards
What is the fleshy portion of a muscle?
Belly
What is the part of the muscle that refers to fibers parallel to the midline?
Rectus
What is the end if a muscle attached to the stationary bone?
Origin
What is the part of a muscle referring to the smallest of a set of muscles?
Minor
What is a muscle that stabilizes the origin of a prime mover?
Fixator
The biceps brachii and triceps brachii muscles function as ____.
Antagonists
What are muscles that help the prime mover function more efficiently?
Synergist
What is the part of a muscle that refers to a two-headed origin?
Biceps
Part of a muscle name referring to a muscle with a circular shape
Orbicularis
Muscles generally move the bone they lie _______ to.
Proximal
In order to move a bone, a muscle must have its _____ on that bone
Insertion
Part of a muscle name referring to fibers perpendicular to midline
Transverse
What are the muscles of the back (posterior trunk) function to do what action to the head, trunk, and upper arm?
Extend
What is a muscle that produces an effect opposite of the prime mover?
Antagonist
Part of a muscle name referring I the largest of a set of muscles
Maximus
What is the end of a muscle attached to the movable bone?
Insertion
Part of a muscle name referring to a muscle with a triangular shape
Deltoid
Part of a muscle name referring to a three headed origin
Triceps
Most movements occur due to the contraction of a ______ of muscles
Group
The hamstring muscles function to do what action to the lower leg?
Flex
Fixators ______ the origin of the prime mover so that the prime mover can act more efficiently.
Stabilize
Name the muscles with the following actions: Smiling
Zygomaticus major
Name the muscles with the following actions: Rotates the vertebral column to twist us sideways.
External oblique
Name the muscles with the following actions: Flexes and rotates the head
Sternocleidomastoid
Name the muscles with the following actions: Used in crossing our legs–flexes the leg at the knee joint and abducts and laterally rotates the thigh at the hip joint.
Sartorius
Name the muscles with the following actions: Together with the adductor group, adducts the thigh at the hip joint
Gracilis
Name the muscles with the following actions: Closes the eyelids
Orbicularis oculi
What extends the arm when the posterior portion contracts, abstracts the arm when the lateral portion contrats, and flexes the arm when the anterior portion contracts?
Deltoid
Abducts, flexes, or extends the arm at the shoulder joint
Deltoid
What is the muscle on the thumb side that flexes the hand?
Flexor carpi radialis
What is the group that flexes the lower leg and extends the thigh?
Hamstrings
What is the arm muscle that flexes the arm and forearm?
Biceps brachii
What works with the soleus to plantar flex the foot?
Gastrocnemium
What is the group that extends the leg at the knee joint?
Quadriceps
What are the well-developed swimming muscles used to extend, adduct, or rotate the arm?
Latissimus dorsi
What extends the phalages?
Extensor digitorum
Boxers use this muscle to move the scapula laterally and forward
Serratus anterior
What is the main muscle that closes the jaw?
Masseter
What are the only quadriceps muscles that flexes the thigh and extends the leg?
Rectus femoris
What is the muscle that puckers the lips?
Orbicularis oris
What is the posterior muscle that extends the arm at the shoulder?
Triceps brachii
What are the wrinkles of the forehead?
Frontalis
What elevates the clavicle, depresses or elevates the scapula, or extends the head?
Trapezius
What muscle flexes and abducts the thigh at the hip joint?
Tensor fasciae latae
What muscle elevates and retracts the mandible?
Temporalis
