muscular system 4-gross muscular system.

Question 1

Neck muscles- sternocleidomastoid muscle movements

Answer 1

laterally flexes the head and neck to the same side/ rotates head to opposite side. Both contracting together flexes neck.

Question 2

Neck muscles- trapezius muscle movements

Answer 2

Extends and laterally flexes neck.

Question 3

Muscles moving the vertebral column-Erector Spinae muscle movements

Answer 3

they’re responsible for extending, laterally flexing and rotating the vertebral column.

Question 4

Muscles of the Thorax- what is the thoracic cavity?

Answer 4

Rib cage cavity from neck to diaphragm.

Question 5

Muscles of the Thorax- thoracic muscles are involved in what?

Answer 5

breathing.

Question 6

Muscles of the Thorax- what are the 4 major groups associated with the rib cage?

Answer 6

Scalenes, external intercostals, internal intercostals and the transversus thoracis.

Question 7

Muscles of the Thorax- what muscle causes the major movement produced during quiet breathing?

Answer 7

the Diaphragm

Question 8

Muscles of the Thorax- how does the diagram cause inspiration?

Answer 8

◦ Dome shaped muscle.

◦ When it contracts, dome flattens slightly, causing the volume of the thoracic cavity to increase resulting in inspiration.

Question 9

Muscles of the Thorax- what is the process of inspiration?

Answer 9

 At rest/ quiet= Diaphragm
contracts, rib cage elevates via external intercostals.

 Exercise/ activity= Diaphragm
contracts, scalenes elevates
first two ribs more forcefully.
 Increase thoracic cavity volume.

Question 10

Muscles of the Thorax- what is the process of expiration?

Answer 10

 At rest/ quiet= Diaphragm
relaxes, muscle groups relax.

 Exercise/ activity= Diaphragm relaxes, internal intercostals and the transversus thoracis
depress the ribs.

 Decrease thoracic cavity
volume.

Question 11

Muscles of the abdominal wall- Rectus Abdominis muscle movement

Answer 11

Flexes vertebral column, compresses abdomen.

Question 12

Muscles of the abdominal wall- External and Internal abdominal obliques muscle movement

Answer 12

Flex and rotate vertebral column, compress abdomen

and depress thorax.

Question 13

Muscles of the abdominal wall- Transversus

abdominis muscle movement

Answer 13

Compress abdomen.

Question 14

Upper body/ Limb Muscles- deltoid muscle movements

Answer 14

Flexes & extends shoulder, abducts, medially & laterally
rotates arm.

Question 15

Upper body/ Limb Muscles- Coracobrachialis muscle movements

Answer 15

Adducts the arm & flexes

shoulder.

Question 16

Upper body/ Limb Muscles- Pectoralis Major muscle movements

Answer 16

Flexes shoulder, adducts and medially rotates arm (also pectoralis minor
underneath).

Question 17

Upper body/ Limb Muscles- Latissimus Dorsi muscle movements

Answer 17

adducts & medially rotates arm, extends shoulder.

Question 18

Upper body/ Limb Muscles- Teres Major muscle movements

Answer 18

Extends shoulder, adducts & medially rotates arm.

Question 19

Upper body/ Limb Muscles- Rotator Cuff muscle movements

Answer 19

Involved In all shoulder

movements.

Question 20

Upper body/ Limb Muscles- what is the Rotator Cuff comprised of?

Answer 20

Infraspinatus, Subscapularis,

Supraspinatus and the Teres Minor.

Question 21

Arm muscles- Biceps Brachii muscle movements

Answer 21

Flexes shoulder & elbow, supinates forearm and hand.

Question 22

Arm muscles- Brachialis muscle movements

Answer 22

Flexes elbow.

Question 23

Arm muscles- Tricep brachii muscle movements

Answer 23

Extends elbow, extends shoulder & adducts arm.

Question 24

Forearm muscles-Brachioradialis muscle movements

Answer 24

Flexes elbow.

Question 25

Forearm muscles- Pronator teres muscle movements

Answer 25

pronates forearm.

Question 26

Forearm muscles- Supinator muscle movements

Answer 26

supinates forearm.

Question 27

Lower limb muscles- what muscles make up the butt?

Answer 27

 Gluteus Maximus

 Gluteus Medius

 Gluteus Minimus

 Piriformis

Question 28

Lower limb muscles- Gluteus Maximus muscle movement

Answer 28

Extends Hip

Question 29

Lower limb muscles- Gluteus Medius muscle movement

Answer 29

Abducts Thigh

Question 30

Lower limb muscles- Gluteus minimus muscle movement

Answer 30

Abducts Thigh

Question 31

Lower limb muscles- Piriformis muscle movement

Answer 31

Abducts Thigh

Question 32

Lower limb muscles- what muscles make up the Quadriceps?

Answer 32

Rectus Femoris, Vastus Lateralis, Vastus Intermedus and Vastus Medialis

Question 33

Lower limb muscles- Tensor Fasciae Latae muscle movements.

Answer 33

Flexes hip, abducts & medially rotates thigh.

Question 34

Lower limb muscles- Vastus Lateralis muscle movements.

Answer 34

Extend the knee.

Question 35

Lower limb muscles- Rectus Femoris muscle movements

Answer 35

Extend the knee.

Question 36

Lower limb muscles- Sartorius muscle movements

Answer 36

Flexes hip & knee.

Question 37

Lower limb muscles- Vastus Medialis muscle movements

Answer 37

Extend the knee.

Question 38

Lower limb muscles- what muscles make up the hamstring and what movement do they produce?

Answer 38

 Semitendinosus.
 Semimembranosus.
 Biceps Femoris.

 Flex the knee.

Question 39

Lower limb muscles- what muscles are located on the posterior of the calves?

Answer 39

Gastrocnemius- Plantar flexes foot & flexes knee.

Soleus- Plantar Flexes foot.

Question 40

Lower limb muscles- what muscle are located on the Tibialis Anterior of the calves?

Answer 40

Tibialis Anterior- Dorsiflexes foot.