Ch 10: All Of The Muscles

Question 1

Frontalis

Answer 1

-Located front of the forehead
-Raises the eyebrows

Question 2

Orbicularis oculi

Answer 2

-Located around the eye
-Closes the eye when blinking squinting

Question 3

Zygomaticus

Answer 3

-Located over the cheeks and up toward the eyes
-Draws your mouth upwards when laughing

Question 4

Orbicularis Oris

Answer 4

-Located around the mouth
-Closes the mouth and purses the lips

Question 5

Buccinator

Answer 5

-Located on the side of the mouth
-Assists in smiling and blowing as well as chewing

Question 6

Temporalis

Answer 6

Located above the ear on the side of the head
-Aids in closing the jaw

Question 7

Masseter

Answer 7

Located at the jaw
-Closes the jaw

Question 8

Sternocleidomastoid

Answer 8

Located laterally on the neck
-Flexes the head downward

Question 9

Trapezius (head)

Answer 9

Located on shoulder and upper neck
-Extends the head and flexes to one side also elevates the shoulder

Question 10

External intercostals

Answer 10

Superficially between the ribs
-Elevate the ribs during inspiration

Question 11

Internal intercostals

Answer 11

Lie deeper than the external intercostals
-Depress the ribs during forced exhalation

Question 12

Diaphragm

Answer 12

Located inferior to the lungs inside the rib cage
-Enlarges the thorax to trigger inspiration

Question 13

Rectus abdominis

Answer 13

Aaaaaaaaaaabs
-Flexes the lumbar region of the spinal column to cause bending at the waist

Question 14

Transverse abdominal

Answer 14

To the side of the abdominal muscles under the external oblique
-Compresses the contents of the abdomen

Question 15

Internal oblique

Answer 15

Underneath the external oblique
-Stabilizes the spine and permits rotation at the waist

Question 16

External oblique

Answer 16

Outermost abdominal muscle
-Stabilizes the spine and aids in forceful expiration

Question 17

Linea Alba

Answer 17

White line in the centre of the abs
-Band of connective tissue

Question 18

Deltoid

Answer 18

On the shoulder
Abducts flexes and rotates the arm involved in swinging the arm

Question 19

Pectoralis major

Answer 19

On the chest
Flexes and adducts the arm such as when climbing or hugging

Question 20

Serratus anterior

Answer 20

Lateral to the abs
Drives all forward reaching and pushing movements pulls the shoulder down and forward

Question 21

Trapezius

Answer 21

Posterior neck portion
Raises and lowers the shoulders stabilizes the scapula during arm movements

Question 22

Latissimus dorsi

Answer 22

Lateral lower back
Adducts the humerus
-Extends the upper arm backward

Question 23

Four muscles of the rotator cuff

Answer 23

-supraspinatus
-infraspinatus
-teres minor
-subscapularis

Question 24

Brachialis

Answer 24

Located at the bicep
The prime mover When flexing the forearm

Question 25

Biceps brachii

Answer 25

Assists the brachialis when flexing before also supinates the forearm

Question 26

Triceps brachii

Answer 26

The prime mover when extending the forearm

Question 27

Brachioradialis

Answer 27

Helps the brachialis and the biceps brachii flex the forearm

Question 28

Pronator muscles

Answer 28

Allow the arm to pronate (Palms down) 

Question 29

Supinator muscle

Answer 29

Used with the biceps brachii to allow supination (Palms up)

Question 30

Iliapsosas

Answer 30

-Flexes the thigh -Iliacus -Psosas major

Question 31

Sartorius

Answer 31

Across the front of the thigh Aids in flexion of the hip and knee and abducts and laterally rotates the thigh

Question 32

Adductor muscles

Answer 32

Rotate and draw the thigh in towards the body -Adductor Magnus -Adductor brevis -Adductor longus -gracilis

Question 33

Quadriceps femoris

Answer 33

-The most powerful muscle in the body it is the prime mover for knee extension -rectus femoris -vastus lateralis -vastus medialis -vastus intermedius

Question 34

Gluteus medius

Answer 34

-Attached to the iliac crest -Abducts and rotates the thigh outward 

Question 35

Gluteus maximus

Answer 35

It’s your butt The bulkiest muscle in the body. produces the backswing of the leg

Question 36

Gluteus minimus

Answer 36

Beneath the other two gluteal muscles

Question 37

Hamstring group

Answer 37

Extend the thigh at the hip, flex the knee, and rotate the leg -Biceps femoris -semitendinosus -semimembranosus

Question 38

Gastrocnemius

Answer 38

Calf muscle partially responsible for plantar flexion

Question 39

Soleus

Answer 39

Causes plantar flexion of the foot

Question 40

Calcaneal tendon

Answer 40

Achilles tendon

Question 41

Tibialis anterior

Answer 41

Keeps the toes from dragging the ground when walking

Question 42

Extensor digitorum longus

Answer 42

Extends the toes and turns the foot outward