Muscular System

Question 1

Point of attachment that does not move

Answer 1

Origin

Question 2

Point of attachment that moves

Answer 2

Insertion

Question 3

Principle muscle involved in an action

Answer 3

Prime mover

Question 4

Assists prime mover in accomplishing a movement

Answer 4

Synergists

Ex. (Brachials and brachioradialis)

Question 5

Stabilizes insertion points during movement

Answer 5

Fixators

Question 6

Primarily responsible for an action

Also known as the prime mover

Answer 6

Agonist

Question 7

Muscles that produces the opposite movement of the agonist

Answer 7

Antagonist

Question 8

What are skeletal muscle names derived from

Answer 8

Greek and Latin root words

Question 9

What are the easily observable characteristics of muscles

Answer 9

Shape
Size comparisons
Orientation of fibers
Number of origins
Action of muscle
Attachment location of
Grouping of muscle

Question 10

Named for their resemblance of shape

Answer 10

Muscle shape

Question 11

Muscles in a group are sometimes named for their size relative to other muscles in the group

Answer 11

Muscle size

Question 12

Named for the region where they are located

Answer 12

Location

Question 13

Orientation of the muscle fibers and fascicles is used to describe some muscles

Answer 13

Orientation of fibers

Question 14

Number of origins a muscle has can differentiate can differentiate it from other nearby muscles

Answer 14

Number of origins

Question 15

Named for the action the muscle achieves

Answer 15

Action

Question 16

Attachment location can appear in a muscle name

-Origin is always first

Answer 16

Attachment

Question 17

Some muscles exist in groups

Answer 17

Grouping

Question 18

Scientific term for chewing

Answer 18

Mastification

Question 19

What are the muscles that move the lower jaw?

Answer 19

Masseter
Temporalis
Pterygoid muscles

Question 20

It is the Lateral muscle acting on the jaw
And mainly responsible for chewing

Responsible for elevation of the mandible

Answer 20

Masseter

Question 21

It is the muscle just above the jaw and spanning over the lateral bones of the skull

Responsible for the retraction of the mandible

Answer 21

Temporalis

Question 22

Deep facial muscle assisting in chewing

Prime mover
Side to side movement of the jaw opening and closing of the mouth

Answer 22

Medial Pterygoid/lateral pterygoid

Question 23

This pterygoid’s insertion is the medial surface of the ramus and the angle of the mandible

Answer 23

Medial pterygoid

Question 24

This pterygoid’s insertion is the joint capsule of the temporomandibular joint and the condyloid process of the mandible

Answer 24

Lateral Pterygoid

Question 25

What are the muscles that move the head

Answer 25

Sternocleidomastoid Scalenes

Question 26

A thick muscle that attaches the sternum, clavicle and the mastoid Prime mover Flexion of the head and neck

Answer 26

Sternocleidomastoid

Question 27

Muscles of the neck that assist the sternocleidomastoid Flexion of the neck

Answer 27

Scalenes

Question 28

What are the muscles that move the humerus

Answer 28

Pectoralis major and latissimus dorsi

Question 29

Formed by tendons of subscapulares, Supraspinatus, infraspinatus and teres minor Gives structure and stability to the shoulder joint

Answer 29

Rotator cuff

Question 30

What are the thigh muscles that move the femur, tibia and fibula

Answer 30

Medial compartment Anterior compartment Posterior compartment

Question 31

Adducts the femur

Answer 31

Medial compartment

Question 32

What are theuscles in the medial compartment

Answer 32

Adductor Longus, adductor brevis, adductor magnus, pectineus and gracilis

Question 33

Flexes the thigh and extends the knee

Answer 33

Anterior compartment

Question 34

What are the muscles in the anterior compartment

Answer 34

Quadriceps femoris, rectus femoris, vastus lateralis,vastusmedialis,vastus intermedius

Question 35

Extends the thigh and flexes the knees

Answer 35

Posterior compartment

Question 36

What are the muscles in the posterior compartment

Answer 36

Hamstrings, semitendious, semimembranosus, biceps femoris

Question 37

An arrangement of fascicles in skeletal muscle

Answer 37

Fascicle arrangement

Question 38

Fascicles are arranged in same direction as long axis of muscle

Answer 38

Parallel

Question 39

Parallel formation with large muscle belly in the middle and narrowing ends

Answer 39

Fusiform

Question 40

Enlarge when muscles contract

Answer 40

Muscle bellies

Question 41

Fascicles blend into tendon in center of muscle

Answer 41

Pennate

Question 42

Prefixes that indicate number

Answer 42

Uni Bi/di Tri Quad Multi

Question 43

What are the muscles of facial expression

Answer 43

Orbicularis oculi Orbicularis oris Occipitofrontalis Buccinator Zygomaticus major Zygomaticus minor

Question 44

Puckers the lips

Answer 44

Orbicularis Oris

Question 45

Opens and closes the eyes

Answer 45

Orbicularis oculi

Question 46

Moves the scalp and eyebrows

Answer 46

Occipitofrontalis

Question 47

Compresses the cheek

Answer 47

Buccinator

Question 48

Raising the corners of mouth

Answer 48

Zygomaticus major/minor

Question 49

What are the muscles of the thorax

Answer 49

Diaphram Intercostal muscles External, internal and inermost

Question 50

Depresses the central tendon to create more space in the thorax during inspiration

Answer 50

Diaphram

Question 51

Elevates ribs during inspiration

Answer 51

External intercostalis

Question 52

Depresses and draws ribs together during expiration

Answer 52

Internal intercostals

Question 53

Assists the internal intercostals during expiration

Answer 53

Innermost intercoastals

Question 54

What are the muscles that move the feet

Answer 54

Anterior compartment Posterior compartment Lateral compartment

Question 55

Dorsiflexes the feet

Answer 55

Anterior compartment

Question 56

Eversion and plantar flexion of the foot

Answer 56

Lateral compartment

Question 57

Plantar flexion of the foot

Answer 57

Posterior compartment