Muscular System- Muscles

Question 1

Name 20 major skeletal muscles of the muscular system?

Answer 1

Deltoids
biceps
triceps
wrist flexors
wrist extensors
supinators and pronators
pectorals
abdominals
obliques
quadriceps
hip flexors
tibialis anterior
erector spinae
trapezius
latissimus dorsi
gluteals
hamstrings
gastrocnemius
soleus

Question 2

State two muscles that bring about movement at your knee joint.

Answer 2

Quadriceps (extension) and Hamstrings (flexion)

Question 3

The gastrocnemius and soleus produce plantar flexion at your ankle, what muscle is the main agonist for dorsi flexion?

Answer 3

Tibialis Anterior

Question 4

What is the function of your deltoid?

Answer 4

Abduction at the shoulder

Question 5

Flexion at the elbow occurs due to your …….. contracting.
Extension at the elbow occurs due to your …….. contracting.

Answer 5

Flexion at the elbow occurs due to your BICEP contracting.
Extension at the elbow occurs due to your TRICEP contracting.

Question 6

What movement is produced at your shoulder joint when your pectorals contract?

Answer 6

Horizontal adduction

Question 7

True or false?
There are four major muscles found in your forearm.

Answer 7

TRUE
Wrist flexors, wrist extensors, supinators and pronators

Question 8

True or false?
Obliques main function is flexion and rotation of the lumbar vertebrae.

Answer 8

FALSE
ABDOMINALS- flexion and rotation of the lumbar vertebrae
Obliques- Lateral flexion of the waist

Question 9

What is the correct spelling for a long muscle running either side of your spine?
A- Eractor Spine
B- Erector Spinea
C- Eractor Spinae
D- Erector Spinae

Answer 9

D- Erector Spinae

Question 10

Describe how flexion and extension/ hyper-extension occurs at your hip joint.

Answer 10

Flexion:
Agonist = Hip flexors (contract) / Antagonsist = Gluteals (relax)

Extension:
Agonist = Gluteals (contract) / Antagonsist = Hip flexors (relax)