Anatomy Lab Exam 3: Axial and Appendicular muscles and functions

Name muscle and Action

Orbicularis Oris

Action: Closes lips, kissing

Name muscle and Action

Orbicularis Oculi

Action: Closes eyes, blinking and squinting 

Name muscle and Action

Zygomatic Major

Action: elevates corners of mouth, smiling and laughing

Name muscle and Action

Buccinator

Action compresses cheeks to teeth, whistling, fishy face

Name muscle and Action

Masseter

Action: elevates (closes) jaw, chewing

Name muscle and Action

Occipitofrontalis

Action: retracts scalp, raising eyebrows

Name muscle and Action

Temporalis

Action: elevates jaw, retraction, medial and lateral movement 

Name muscle and Action

Levator Scapula

Action: Elevates scapula, abducts and rotates neck

Name muscle and Action

Scalenes

Action: Flexes and rotates neck laterally, elevates ribs 1-2

Name muscle and Action

Sternrocleiodmastoid

Action: Flexes neck, rotates head left and right to shoulder on opposite side, bends head up and down 

Name muscle and Action

External Intercostals

Action: Elevates ribs during inhalation

Name muscle and Action

Internal intercostals

Action: Elevates ribs and depresses ribs, inhalation and exhale

Name muscle and Action

Transverse Abdominis

Action: Compresses abdominal wall and laterally rotates waist

Name muscle and Action

Rectus Abdominis

Action: Flexes spine, compresses abdominal wall

Name muscle and Action

Diaphragm

Action: Primary mover for inspiration

Name muscle and Action

Pectoralis Major

Action: Flexes arm, adducts arm, medially rotates arm

Name muscle and Action

Serratus Anterior

Action: abducts scapula

Name muscle and Action

External Oblique

Action: Compresses abdominal wall and laterally rotates waist

Name muscle and Action

Internal Oblique

Action: Compresses abdominal wall and laterally rotates waist

Name muscle and Action

Trapezius

Action: Extends and abducts head, raises, rotates and adducts scapula, fixes scapula

Name muscle and Action

Rhomboid major

Action: adducts scapula

Name muscle and Action

Latissimus Dorsi

Action:Extends,adducts, and medially rotates arm, draws shoulders inferiorly

Name muscle and Action

Erector Spinae

Action: Extends spine, flexes spine, maintains up right posture

Name of tendon and Action

galea aponeurotica

action: wide ligamment/tendon attachment point on top of head, connects frontal belly occipitofrontalis and ocipital belly of occipitofrontalis

Name and Action

Rectus Sheath

action: fibrous sheath that covers rectus abomominus

Name tendon and Action

Linea Albea

action: white fibrous connective tissue/tendon down middle of abdomen

Name muscle and Action

Deltoid

Action: Abducts, flexes and extends, medially and laterally rotates arm

Name muscle and Action

Biceps Brachii

Action: flexes arm, supinates arm

Name muscle and Action

Triceps Brachii

Action: extends arm, adducts arm 

Name muscle and Action

Flexor Carpi radials

Action: Flexes and abducts wrist 

Name muscle and Action

Flexor Carpi Ulnaris

Action: Flexes and adducts wrist

Name muscle and Action

Palmaris Longus

Action: Anchors skin and fascia of palmar region

Name muscle and Action

Extensor Capris Radialis (longus)

Action: Extends and abducts wrist 

Name muscle and Action

Extensor Carpi Ulnaris

Action: extend and adducts wrist

Name muscle and Action

Extensor Digitorum

Action:Extends hand and phalanges

Name muscle and Action

Gluteus Maximus

Action: abducts thigh, extends thigh

Name muscle and Action

Tensor Fascia Lata

Action: Flexes and medially rotates thigh, extends and laterally rotates knee

Name muscle and Action

Gracilis

Action: flexes and medially rotates leg

Name muscle and Action

Sartorius

Action: Laterally rotates and flexes thigh, Flexes knee

Name muscle and Action

Hamstring group (bicep femoris, semitendinousus, semimembranosis)

Action: flexes thigh, extends knee

Name muscle and Action

bicep femoris

Action:extend thigh, flex knee

Name muscle and Action

semitendonosis

Action:extend thigh, flex knee

Name muscle and Action

semimembranosis

Action:extend thigh, flex knee

Name muscle and Action

Quadriceps Group (rectus femoris, vastus lateralis, vastus medialis, vastus intermedius)

Action: flex thigh, extend leg (rectus femoris), extend leg (vastus muscles)

Name muscle and Action

rectus femoris

Action: flex thigh, extend leg

Name muscle and Action

vastus lateralis

Action: extend leg

Name muscle and Action

vastus intermedius

action: extend leg

Name muscle and action

vastus medialis

action:extend leg

Name muscle and Action

Tibialis anterior

Action:dorsiflexes and inverts foot

Name muscle and Action

Extensor digitorum longus

Action: Extends toes, dorsiflexes foot

Name muscle and Action

Gastrocnemius

Action: Planter flexes foot, flexes leg

Name muscle and Action

Soleus

Action:Planter flexes foot

Name muscle and Action

Fibularis longus

Action: plantar flexes and everts foot

Name tendon and Action

achilles tendon

Action: tendon that connects gastrocenemuis and calcaneous