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Muscles
Practical
55
Physiology
Undergraduate 3
10/23/2012

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Cards

Term
Frontalis
Definition

Raises the eyebrows

Term
Occipitalis
Definition
Draws scalp posteriorly
Term
Orbicularis oris
Definition
Puckers the mouth as in kissing
Term
Orbicularis oculi
Definition
Closes each eye as in blinking
Term
Zygomaticus major
Definition
Pulls the corners of the mouth superiorly as in smiling
Term
Platysma
Definition
Depresses mandible and lower lip.  Tenses neck skin
Term
Temporalis
Definition
Elevates and retracts the mandible
Term
Masseter
Definition
Elevates and protracts the mandible
Term
Sternocleidomastoid
Definition
Rotates head and flexes the head
Term
Rectus abdominis
Definition
Flexes the vertebral column and compresses the abdomen
Term
External oblique
Definition
Rotates the trunk.  Flexion of the vertebral clumn and compresses the abdomen
Term
Internal oblique
Definition
Rotation of the trunk, flexion of the vertebral column and compression of the abdomen
Term
Transverse abdominis
Definition
Compresses the abdomen
Term

Erector Spinae

Iliocostalis group

Longissimus group

Spinalis group

Definition
Laterally flexes and rotates the vertebral column.  Extends the vertebral column
Term
Diaphragm
Definition
Normal inspiration
Term
External intercostals
Definition
Forced inspiration
Term
Internal intercostals
Definition
Forced expiration
Term
Pectoralis minor
Definition
Depresses and protracts te scapula
Term
Trapezius
Definition
Elevates scapula and clavicle.  Extends the head.  Adducts the scapula.  Depresses the scapula
Term
Levator scapulae
Definition
Elevates the scapula
Term

Rhomboid major

Rhomboid minor

Definition
Elevates, adducts, and rotates the scapula
Term
Pectoralis major
Definition
Flexes, adducts, and medially rotates the arm
Term
Latissimus dorsi
Definition
Adducts, extends, and medially rotates the arm
Term
Deltoid
Definition
Adduct arm, flex and medially rotates arm, extends and laterally rotates arm
Term
Supraspinatus
Definition
Abducts the arm
Term
Infraspinatus
Definition
Latterally rotates and adducts the arm
Term
Teres major
Definition
Extends, adducts, and medially rotates the arm
Term
Biceps brachii
Definition
Flexes and supinates the forearm; flexes the arm
Term
Brachialis
Definition
Flexes the forearm
Term
Brachioradialis
Definition
Flexes the forearm
Term
Triceps brachii
Definition
Extends the forearm and extends the arm
Term
Flexors
Definition
Flex the hand
Term
Extensors
Definition
Extend the hand
Term

Iliopsoas

Iliacus

Psoas major

Definition
Flex the thigh
Term
Tensor fascia latae
Definition
Flexes and abducts the thigh
Term
Gluteus maximus
Definition
Extends and laterally rotates the thigh
Term
Gluteus medius
Definition
Abducts and medially rotates the thigh
Term
Gluteus minimus
Definition
Abducts and medially rotates the thigh
Term
Gracilis
Definition
Adducts the thigh and flexes the leg
Term
Adductor magnus
Definition
Adducts and medially rotates the thigh
Term
Adductor longus
Definition
Adducts, flexes, and medially rotates the thigh
Term
Adductor brevis
Definition
Addutcs, medially rotates, and flexes the thigh
Term
Rectus femoris
Definition
Flexes the thigh and extends the leg
Term

Vastus lateralis

Vastus medialis

Vastus intermedius

Definition
Extends the leg
Term
Sartorius
Definition
Felexes the leg, and flexes and laterally rotates the thigh
Term
Biceps femoris
Definition
Flexes the leg and extends the thigh
Term
Semimembranosus
Definition
Flexes the leg and extends the thigh
Term
Semitendinosus
Definition
Flexes the leg and extends the thigh
Term
Gastrocnemius
Definition
Plantar flexes foot and flexes leg
Term
Soleus
Definition
Pltar flexes the foot
Term
Tibialis anterior
Definition
Dorsiflexes and inverts the foot
Term
Tibialis posterior
Definition
Inverts and plantar flexes the foot
Term
Fibularis longus
Definition
Everts and plantar flexes the foot
Term
Fibularis brevis
Definition
Everts and plantar flexes the foot
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