Muscles of Lab List BIO170

Muscle, Origin, Insertion, Action, muscle group. Perform the action on your own body

M: Rectus Femoris
O: Anterior Inferior Iliac Spine
I: Tibial Tuberosity and Patella
A: Extends leg & Flexes thigh
Quadriceps group

Muscle, Action, muscle group. Perform the action on your own body

M: Vastus Medialius
A: Extends leg
Quadriceps group

Muscle, Action, muscle group. Perform the action on your own body

M: Vastus Lateralis

A: Extends leg
Quadriceps group

Muscle, Action, muscle group. Perform the action on your own body

M: Vastus Intermedius
A: Leg extension
Quadriceps group

Muscle, Action, muscle group. Perform the action on your own body

M: Short head of biceps femoris
A: Leg flexion & hip flexion
Hamstring group

Muscle, Action, muscle group. Perform the action on your own body. Name muscle group it is apart of

M: Long head of biceps femoris
A: Leg flexion & Hip flexion
Hamstring

Muscle, Action. Perform the action on your own body

M: Semimembranosus
A: Leg flexion and Hip Flexion

Muscle, Action. Perform the action on your own body

M: Semitendinosus
A: Leg flexion and Hip Flexion

Muscle, Action. Perform the action on your own body

M: Tibialis Anterior
A: Foot dorsiflexion

Muscle, Action. Perform the action on your own body

M: Gastrocnemius
A: Foot plantar flexion

Muscle, Action. Perform the action on your own body

M: Soleus
A: Foot plantar flexion

Muscle, Action. Perform the action on your own body

M: Iliacus
A: Thigh flexions

Muscle, Action. Perform the action on your own body

M: Psoas Major
A: Thigh flexion

Muscle, Origin, Insertion, Action. Perform the action on your own body

M: Gluteus Maximus
O: Dorsal ilum, sacrum, coccyx
I: Gluteal tuberosity of femur
A: Thigh extension

Muscle, Action. Perform the action on your own body

M: Gluteus Medius
A: Thigh abduction

Muscle, Action. Perform the action on your own body

M: Tensor fasciae latae
A: Thigh abduction

Muscle, Action. Perform the action on your own body

M: Adductor magnus
A: Thigh adduction

Muscle, Action. Perform the action on your own body

M: Adductor Longus
A: Adducts thigh

Muscle, Action. Perform the action on your own body

M: Gracilis
A: Adducts thigh

Muscle, Origin, Insertion, Action. Perform the action on your own body

M: Sartorius
O: ASIS
I: Medial proximal tibia
A: Thigh and leg flexion

Muscle, Action. Perform the action on your own body

M: Rectus abdominus
A: Trunk Flexion

Muscle, Action. Perform the action on your own body

M: External oblique
A: Trunk rotation + Trunk flexion unilaterally & bilaterally

Muscle, Action. Perform the action on your own body

M: Internal obliques
A: Trunk rotation + Trunk flexion unilaterally & bilaterally

Muscle, Action. Perform the action on your own body

M: Transversus abdominis
A: Compresses abdomen

Muscle, Action. Perform the action on your own body

M: Triceps brachii
A: Forearm extension

Muscle, Origin, Insertion, Action. Perform the action on your own body

M: Biceps brachii
O: Coracoid process and spraglenoid tubercle of scapula
I: Radial tuberosity
A: Forearm flexion and supination

Muscle, Action. Perform the action on your own body

M: Pronator teres
A: Pronates forearm

Muscle, Action (Blue). Perform the action on your own body

M: Supinator
A: Supinates forearm

Muscle, Action. Perform the action on your own body

M: Brachioradialis
A: Forearm flexion

Muscle, Action. Perform the action on your own body

M: Brachialis
A: Forearm flexion

Muscle, Action. Perform the action on your own body

M: Flexor carpi radialis
A: Hand flexion at wrist

Muscle, Action. Perform the action on your own body

M: Extensor carpi radialis longus
A: Hand extension at wrist

What is this? What are the different layers

Erector spinae
Yellow: Spinalis
Purple: Longissimus
Green: Iliocostalis

Muscle, Action. Perform the action on your own body

M: Supraspinatus
A: Abducts humerus

Muscle, Action. Perform the action on your own body

M: Infraspinatus

A: Laterally rotates humerus

Muscle, Action. Perform the action on your own body

M: Teres minor
A: Laterally roates humerus

Muscle, Action. Perform the action on your own body

M: Subscapularis
A: Medially rotates humerus

Muscle, Action. Perform the action on your own body

M: Teres major
A: Extends + Medially rotates + Adducts humerus

Muscle, Origin, Insertion, Action. Perform the action on your own body

M: Pectoralis Major
O: Clavicle + Sternum + Ribs 1-6
I: Intertubercular sulcus of humerus
A: Adducts + Medially rotates humerus

Muscle, Action. Perform the action on your own body

M: Deltoid
A: Abducts humerus

Muscle, Action. Perform the action on your own body

M: Latissimus dorsi
A: Extends + Adducts + Medially rotates humerus

Muscle, Action. Perform the action on your own body

M: External intercostals
A: Inspiration

Muscle, Action. Perform the action on your own body

M: Internal intercostals
A: Expiration

Muscle, Action. Perform the action on your own body

M: Diaphragm
A: Inspiration

Muscle, Action. Perform the action on your own body

• M: Trapezius

• Superior = Elevates scapula

• Middle = Adducts Scapula

• Inferior = Depresses scapula

Muscle, Action. Perform the action on your own body

M: Pectoralis minor
A: Abducts scapula

Muscle, Action. Perform the action on your own body

M: Serratus anterior
A: Abducts scapula

Muscle, Action. Perform the action on your own body

M: Rhomboids
A: Adducts scapula

Muscle, Action. Perform the action on your own body

M: Levator scapulae
A: Elevates scapula

Muscle, Origin, Insertion, Action. Perform the action on your own body

M: Sternocleidomastoid
O: Manubrium + Medial clavicle
I: Mastoid process
A: Bilateral —> Cervical flexion
Unilateral —> Cervical rotation to opposite side

Muscle, Origin, Insertion, Action. Perform the action on your own body

M: Platysma
O: Manubrium + Medial clavicle
I: Mastoid process
A: Depresses mandible

Muscle, Action. Perform the action on your own body

M: Scalenes (anterior, middle, posterior)
A: Neck flexion + slight nexk rotation

Muscle, Origin, Insertion, Action. Perform the action on your own body

M: Masseter
O: Zygomatic arch + Zygomatic bone
I: Mandibular angle + Mandibular ramus
A: Elevates mandible

Muscle, Action. Perform the action on your own body

M: Buccinator
A: Compresses cheek + Holds food in btwn teeth during chewing

Muscles, Actions. Perform the action on your own body

M: Lateral pterygoid (Superior)
A: Protracts mandible

M: Medial pterygoid
A: Elevates mandible

Muscle, Action. Perform the action on your own body

M: Temporalis
A: Elevates mandible

Muscle, Action. Perform the action on your own body

Frontalis
Elevates eyebrows

Muscle, Action. Perform the action on your own body

Occipitalis
Draw scalp posteriorly

Muscle, Action. Perform the action on your own body

Orbicularis oculi
Squinting and blinking

Muscle, Action. Perform the action on your own body

Orbicularis oris
Closes or purses lips

Muscle, Action. Perform the action on your own body

Zygomaticus major (G) and minor (R)
Elevates corners of mouth

Muscle, Action. Perform the action on your own body

Risorius
Draws corners of mouth laterally