Ch 10: All Of The Muscles Flashcards

1
Q

Frontalis

A

-Located front of the forehead
-Raises the eyebrows

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2
Q

Orbicularis oculi

A

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

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3
Q

Zygomaticus

A

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

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4
Q

Orbicularis Oris

A

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

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5
Q

Buccinator

A

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

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6
Q

Temporalis

A

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

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7
Q

Masseter

A

Located at the jaw
-Closes the jaw

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8
Q

Sternocleidomastoid

A

Located laterally on the neck
-Flexes the head downward

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9
Q

Trapezius (head)

A

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

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10
Q

External intercostals

A

Superficially between the ribs
-Elevate the ribs during inspiration

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11
Q

Internal intercostals

A

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

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12
Q

Diaphragm

A

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

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13
Q

Rectus abdominis

A

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

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14
Q

Transverse abdominal

A

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

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15
Q

Internal oblique

A

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

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16
Q

External oblique

A

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

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17
Q

Linea Alba

A

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

18
Q

Deltoid

A

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

19
Q

Pectoralis major

A

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

20
Q

Serratus anterior

A

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

21
Q

Trapezius

A

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

22
Q

Latissimus dorsi

A

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

23
Q

Four muscles of the rotator cuff

A

-supraspinatus
-infraspinatus
-teres minor
-subscapularis

24
Q

Brachialis

A

Located at the bicep
The prime mover When flexing the forearm

25
Q

Biceps brachii

A

Assists the brachialis when flexing before also supinates the forearm

26
Q

Triceps brachii

A

The prime mover when extending the forearm

27
Q

Brachioradialis

A

Helps the brachialis and the biceps brachii flex the forearm

28
Q

Pronator muscles

A

Allow the arm to pronate (Palms down)

29
Q

Supinator muscle

A

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

30
Q

Iliapsosas

A

-Flexes the thigh
-Iliacus
-Psosas major

31
Q

Sartorius

A

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

32
Q

Adductor muscles

A

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

33
Q

Quadriceps femoris

A

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

34
Q

Gluteus medius

A

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

35
Q

Gluteus maximus

A

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

36
Q

Gluteus minimus

A

Beneath the other two gluteal muscles

37
Q

Hamstring group

A

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

38
Q

Gastrocnemius

A

Calf muscle
partially responsible for plantar flexion

39
Q

Soleus

A

Causes plantar flexion of the foot

40
Q

Calcaneal tendon

A

Achilles tendon

41
Q

Tibialis anterior

A

Keeps the toes from dragging the ground when walking

42
Q

Extensor digitorum longus

A

Extends the toes and turns the foot outward