Upper Extremity Muscles

Question 1

Types of Muscle (3)

Answer 1

Skeletal
Smooth
Cardiac

Question 2

Skeletal (type of muscle) is?

Answer 2

Attached to bone, voluntary, striated

Question 3

Smooth (type of muscle) is

Answer 3

Found in hollow organs involuntary not stiated

Question 4

Cardiac (type of muscle)

Answer 4

Middle layer of heart involuntary striated

Question 5

Functions of Muscle Tissue (6)

Answer 5

Locomotion
Thermogenesis 
Stabilizing body position
Protection 
Protein storage 
Regulating organ content

Question 6

Characteristics of skeletal muscle (4)

Answer 6

Excitability
Contractility
Extensibility
Elasticity

Question 7

Flexors or wrist (5)

Answer 7

Flexor - Carpi radialis
Carpi ulnaris
Digitorium superficials
Digitorium profundus

Palmaris Longus

Question 8

Pectoralis minor origin

Answer 8

Third to fifth ribs

Question 9

Pectoralis minor insertion

Answer 9

Medial border and superior surface of coracoid of scapula

Question 10

Pectoralis minor actions

Answer 10

Abduction of scapula and elevated rib cage to breathe

Question 11

Pectoralis Major origin

Answer 11

Anterior surface of the medial half of the clavicle and sternum….clavicular head, sternocosral head

Question 12

Pectoralis major insertion

Answer 12

Lateral lip of humerus

Question 13

Pectoralis major action

Answer 13

Adducts and medially rotates humerus

Question 14

General muscle actions (4)

Answer 14

Agonists
Antagonists
Prime mover
Muscle synergy

Question 15

Agonists muscle action

Answer 15

Muscles which actively control a single joint motion or maintain joint position

Question 16

Antagonist muscle action

Answer 16

Muscles acting against a movement or position.

Question 17

Prime mover muscle action

Answer 17

Muscle most responsible for the movement

Question 18

Muscle synergy muscle action

Answer 18

Cooperative action between muscles to produce movement

Question 19

Subscapularis

Answer 19

Inward rotation of shoulder

Question 20

Serratus anterior origin

Answer 20

Outer surface of ribs 8 & 9

Question 21

Serratus anterior insertion

Answer 21

Costal aspect of medial margin of scapula

Question 22

Serratus anterior action

Answer 22

Abduction of scapula

Question 23

Supraspinatus

Answer 23

Abductor of shoulder first 15 degrees

Question 24

Infraspinatus

Answer 24

Lateral rotation of shoulder

Question 25

Terres major

Answer 25

Extension
Adduction
Inward rotation of shoulder

Question 26

Teres minor

Answer 26

Outward rotation of shoulder joint

Question 27

Rhomboid complex (major and minor)

Answer 27

From c7 to t5 vertabrae

Adduction of scapula

Question 28

Latissimus Dorsi origin

Answer 28

Vertabrae t7-L5, inferior 3 or 4 ribs

Question 29

Action of latissimus dorsi

Answer 29

Extension and adductor of humerus

Inward rotation of shoulder

Question 30

Trapezius actions

Answer 30

Elevates scapula adducts and depresses scapula

Question 31

Triceps brachi origin

Answer 31

Long head inside
Lateral head outside of tri
Medial is middle

Question 32

Triceps brachi action

Answer 32

Extension of elbow joint

Question 33

Brachioradialis origin

Answer 33

Ridge of humerus aka jack off muscle

Question 34

Brachioradialis action

Answer 34

Jerkin it, flexor at the elbow assists in pronation

Question 35

Brachialis action

Answer 35

Primary flexor of elbow (forearm)

Question 36

Brachialis origin

Answer 36

Anterior surface of humerus

Question 37

Biceps brachi action

Answer 37

Flexor at the elbow

Supinator of forearm

Question 38

Deltoids (anterior, middle, posterior) origin

Answer 38

Upper surface of lateral third of clavicle
Acromonion
Spine of the scapula

Question 39

Deltoids actions

Answer 39

Middle abducts and internally rotates humerus
Anterior flexes
Posterior extends and externally rotates humerus