chapter 10 musculoskeletal system

Question 1

How many and what are fuctions of muscle

Answer 1

5 MOVEMENT
STABILITY 
HEAT PRODUCTION
CONTROL OF OPENING
GLYCEMIC CONTROL

Question 2

The study of muscles is called

Answer 2

myology

Question 3

The connective tissue components, from the smallest to largest and from deep to superficial, are

Answer 3

Endomysium
Perimysium
epimysium
fascia

Question 4

A&P of the fascia

Answer 4

sheet of connective tissue that separates neighboring muscles or from each other and from the subcutaneous tissue

Question 5

Classification of skeletal mucsles

Answer 5

Fusiform  muscles
Parallel muscles 
Triangular (convergent) muscles
Pennate muscles
circular muscles

Question 6

Examples of Circular muscles include

Answer 6

external urethral sphincter

urethral sphincter

Question 7

intermuscular septa are

Answer 7

thich fasciae

Question 8

muscles are call direct attachment when

Answer 8

you cannot see the seperattion between muscle collagen fiber and bone

Question 9

what is indirect attachment

Answer 9

the seperation between muscle and bone is so far the gap is bridged by tendons

Question 10

What is an extensor muscle

Answer 10

muscle straigthens.

Question 11

flexor muscle

Answer 11

bends and unstraigtens

Question 12

Origin or muscle is

Answer 12

the stationary bone muscle is bound to

Question 13

insertion muscle

Answer 13

the bone that is moving

Question 14

intrinsic muscle is

Answer 14

muscle contained entirely within a region of interest

Question 15

extrinsic muscle

Answer 15

A muscle that acts upon a designated organ or region such as the hand, but arises from another region such as the forearm,

Question 16

T/F
Skeletal muscles seldom act independently; instead, they function in groups whose combined actions produce the coordinated control of a joint

Answer 16

TRUE

Question 17

The 4 actions of skeletal muscles are

Answer 17

prime mover (agonist)
synergist : aids prime mover
antagonist: apposed prime mover
fixator: prevents bone movement ex rhomboids

Question 18

innervation refers to

Answer 18

a particular nerve that supplies a muscle

Question 19

Immediately after emerging from an intervertebral foramen, each spinal nerve branches into..

Answer 19

a posterior and anterior ramus.

Question 20

define plexus

Answer 20

weblike networks of spinal nerves adjacent to the vertebral column.

Question 21

Around how much percentage of blood pump by the heart go into muscles at rest and during physical activity?

Answer 21

25% and 75%

Question 22

what is a hernia?

Answer 22

any condition in which the viscera protrude through a weak point in the muscular wall of the abdominopelvic cavity.

Question 23

this muscle is located on the back and is lateral to the spine

Answer 23

trapezuis

Question 24

what is the insertion and origin of the trapezius

also how many sections of the trapezius are there

Answer 24

inserts on scapula column and originates on vertebral column scapula

3 sections
superior
medial
inferior

Question 25

adduction is movement

Answer 25

toward midline

Question 26

role of each part of the trapezius 3 sections

Answer 26

superior raises and inferior decreases | intermediate moves back like a stretch

Question 27

T/F rhomboideus is a superfcial muscle

Answer 27

False it is deep

Question 28

Role of Rhomboideus? origin ? insertion?

Answer 28

synergist to trapezius origin vertebrae column insertion: scapula

Question 29

Role of SerratusAnterior? origin ? insertion?

Answer 29

pulls anteriorly and medially origin on ribcage 1-8 inserts on scapula

Question 30

which muscle know ad hug muscle

Answer 30

serratus Anterior

Question 31

origin and insertion of biceps brachii

Answer 31

origin on scapula insert humerus

Question 32

abduction is

Answer 32

movement away from torso

Question 33

pectoralis major insertion and origin

Answer 33

inserts humerus | origin on clavicle and sternum

Question 34

movement of pectoralis

Answer 34

anterior abbuction movement outward and forward pointing

Question 35

circumduction is

Answer 35

rotation of limb

Question 36

rotator cuff is a

Answer 36

group of tendons and muscles in the shoulder

Question 37

muscles of the rotator cuff includes

Answer 37

subscapularis | infraspinatus

Question 38

tendons and muscles that connect humerus to scapula

Answer 38

Rotator cuff muscles

Question 39

muscles directly connected to scapula

Answer 39

``` 12 muslces Serratus Anterior Supraspinatus Subscapularis Trapezius Teres Major Teres Minor Triceps Brachii long head Biceps Brachii Rhomboid Major Rhomboid Minor Coracobrachialis Omohyoid inferior belly Lattisimus Dorsi Deltoid Levator Scapula Infraspinatus Pectoralis Minor ```

Question 40

major sections of the scapula bone

Answer 40

``` acromial process superior border suprasinous fossa lateral border medial border glenoid cavity ```

Question 41

what shape is the pectoralis major muscle

Answer 41

fan shaped

Question 42

Origin | insertion of Biceps Brachii

Answer 42

orgiin coracoid process and above glenoid | insertion radius

Question 43

origin/ insertion | triceps Brachii

Answer 43

3 origin two on humerus 1 on lateral border scapula inserts on ulna

Question 44

the two flexor muscles of the wrist are called

Answer 44

Flexor carpi radiallis | Flexor carpi ulnaris

Question 45

T/F Flexor Carpi Ulnaris flexes wrist laterally

Answer 45

False flexes medially

Question 46

flexor carpi Radialis flexes wrist laterally or medially ?

Answer 46

laterally

Question 47

supination is to rotate ..

Answer 47

outward

Question 48

pronations is to rotate

Answer 48

inward

Question 49

muscles responsible for wrist supination is the ? which way is supination?

Answer 49

supinator muscle biceps brachii rotating outward or anteriorly

Question 50

muscles responsible for pronation which way is protonation?

Answer 50

pronator teres pronator quadratus rotating inward or posteriorly

Question 51

The flexor digitorium splits into how many phalanges?

Answer 51

4

Question 52

role of the Palmaris Longus

Answer 52

muscle between flexor carpi radialis and flexor carpi ulnaris

Question 53

flexor carpi ulnaris runs along with metacarpel

Answer 53

the 5th metacarpel

Question 54

Brachio Radias function origin insertion

Answer 54

muscle of the forearm that flexes the forearm at the elbow. It is also capable of both pronation and supination

Question 55

the muscles of the forearm include

Answer 55

Flexor digitorium superficialis ``` Fexor carpi ulnaris Palmaris longus Flexor carpi radialis Protonator teres Extensor carpi Extensor digitorium ```

Question 56

Muscles involved in chewing and Swallowing are

Answer 56

Suprahyroid group( Digastric, Stylohyoid, and Mylohyoid Levator Scapulae Sternocleidomastoid

Question 57

muscles acting on the head

Answer 57

sternocleidomastoid scalenes Trapezius

Question 58

Prime mover of neck flexion is the

Answer 58

Sternocleidomastoid

Question 59

nuchal region on the body refers to

Answer 59

the back of the neck

Question 60

``` flexor carpi radialis role? insertion? Origin? what time of movement? Nerve Supply? Artery supply ```

Answer 60

Originates on the Medial epicondyle of humerus Inserts on base of 2nd and 3rd metacarpal bones Action Flexion of wrist/abduction of hand Nerve Median Nerve Branch Radial artery,

Question 61

``` Protonator teres role insertion? Origin? what time of movement? Nerve Supply? Artery supply ```

Answer 61

insertion: middle lateral Radius Origin: Humeral head Nerve: Median Nerve Branch c6,c7

Question 62

Nerves in Brachial plexus

Answer 62

C5, C6, C7, C8, and T1

Question 63

Palmaris longus

Answer 63

forearm muscle Orignates on humerus inserts on Flexor retinaculum Nerve supply: medial Nerve C7,C8 ARTERIAL SUPPLY ULNAR ARTERY

Question 64

coracoid process ? | function

Answer 64

is a small hook-like structure on the lateral edge of the superior anterior portion of the scapula