Muscle Actions Final

What is the action of the Levator anguli oris?

Allows us to smile

elevates corner of mouth

What is the action of the frontalis muscle?

Raises the eyebrow

What is the action of the orbicularis oris?

Allows the lips to pucker

What is the action of the orbicularis oculi?

Allows the eyes to close

What is the action of the Pharyngeal constrictor?

Allows us to swallow

What is the action of the Masseter?

elevates, protracts and retracts mandible

What is the action of the temporalis?

elevates and retracts mandible

What is the action of the Platysma?

Draws the corners of the mouth down, and draws the skin of the neck up

What is the action of the Longus Colli?

lateral flexion

Cervical flexion and rotation

What is the action of the Scalenes?

Elevates ribs 1+2

cervical rotation, cervical flexion and lateral flexion

What is the action of the Sternocleidomastoid?

Cervical flexion and extension

cervical lateral flexion

cervical rotation

What is the action of the Splenius capitis?

cervical rotation

cervical extension

cervical lateral flexion

What is the action of the Semispinalis Capitis?

cervical extension

cervical rotation

cervical lateral flexion

cervical stabilization

What is the action of the Trapezius?

extends, flexes the neck

cervical lateral flexion

Elevates scapula

Depresses scapula

Upward rotates scapula

Retracts the scapula

What is the action of the Erector Spinae?

extends vertebral column

lateral flexion of vertebral column

What is the action of the Interspinales muscles?

Extension of vertebral column

Stabiles the vertebral column

What is the action of the Levator Scapulae?

Elevate scapula

Downwards rotates scapula

Cervical extension

Cervical later flexion

cerical rotation

What is the action of the Rhomboids?

Elevates scapula

Retracts the scapula

Downward rotates scapula

What is the action of the Multifidus?

extension, lateral flexion and rotation of the vertebral column

Stabilizes vertebral column

What is the action of the intercostal muscles?

External - elevates ribs- inhalation

Internal- depresses ribs- exhalation

What is the action of the Diaphragm?

Contracts to force inhalation

Helps to expel vomit, feces, and urine

What is the action of the External Obliques?

Flexes the trunk

Lateral flexion of the trunk

Rotation of the trunk

What is the action of the Transverse Abdominis?

Compress the ribs and viscera

Provides thoracic and pelvic stability

What is the action of the Rectus Abdominis?

Trunk flexion

Compression of abdomen

What is the action of the Quadratus Lumborum?

Lateral flexion of the trunk, depression of thoracic cage

What is the action of the Cremaster?

Raises and lowers the testes

What is the layman's term for when our diaphragm gets struck?

Getting your wind knocked out?

What is the layman's term for when our diaphragm goes into a spasm?

Hiccups

List 5 muscles which help make up the "Core Muscle" group?

Rectus Abdominis, Transverse Abdominis, External Oblique, Internal Oblique, Multifidus, Erector Spinae, Diaphragm and Interspinalis

Name the muscles of the anterior compartment of the lower leg?

Tibialis anterior, Extensor Hallicus Longus, Extensor Digitorum Longus

Name the muscles of the posterior superficial compartment of the lower leg?

Gastrocnemius, Soleus, Plantaris and Flexor digitorum longus

Name the muscles of the deep posterior compartment of the lower leg?

Popliteus, Flexor Hallicus Longus, Flexor Digitorum Longus and Tibialis Posterior

Name the muscles of the lateral compartment of the lower leg?

Peroneous Longus and Peroneous Brevis

What is the functions of the Tibialis anterior?

Ankle inversion and dorsiflexion

What is the functions of the Extensor Hallicus Longus?

Extends big toe and assists in ankle dorsiflexion and inversion

What is the functions of the Extensor Digitorum Longus?

Extends the toes 2-5, assists in ankle dorsiflexion and eversion

What is the functions of the Gastrocnemius?

Ankle plantarflexion and knee flexion

What is the functions of the Soleus?

Ankle plantarflexion

What is the functions of the Plantaris?

Ankle plantarflexion and knee flexion

What is the functions of the Flexor digitorum longus?

Flex digits 2-5, assists in ankle plantarflexion and inversion

What is the functions of the Popliteus?

Internal rotator of lower leg and knee flexor

What is the functions of the Flexor Hallicus Longus?

Flexes all joints of the Hallux, assists in ankle plantarflexion and inversion

What is the functions of the Tibialis Posterior?

Ankle inversion and plantarflexion

What is the functions of the Peroneous Longus?

Ankle plantarflexion and eversion

What is the functions of the Peroneous Brevis?

Ankle plantarflexion and eversion

What is the actions of the dorsal foot muscles?

Toe extension

What is the functions of the 1st layer of the plantar foot?

Toe flexion and abduction

What is the functions of the 2nd layer of the plantar foot?

Flexes DIP and PIP joints and Extends DIP

What is the functions of the 3rd layer of the plantar foot ?

Big and Little Toe flexion and adduction

What is the functions of the 4th layer of the plantar foot?

Toe abduction and adduction

Identify the term used for injuries due to over-stretched muscles or tendons?

Strain

Identify the term used for injuries due to over-stretched or torn ligaments?

Sprain

____________ is recommended treatment for either

acute sprain or strain?

POLICE

Identify the term used for an injury that just happened or is in the beginning stages of the injury healing process?

Acute injury

Identify the term used for an injury that did not "just pop up"? This injury is the type that usually lingers on?

Chronic injury

Identify three techniques that can be done to help prevent strains and sprains?

Warm up muscles

Stretching

Cooling down or slowing down

What is the function the the Sartorius?

Flexion of hip

external rotation of hip

abduction of hip

What is the function the the Rectus Femoris?

Knee extension

hip flexion

What is the function the the Vastus Lateralis?

Knee extension

knee stabilization

What is the function the the Vastus Intermedius?

Knee extension

What is the function the the Vastus Medialis?

Knee extension

What is the function the the Biceps Femoris?

Flexes knee

extends hip

externally rotates hip

What is the function the the Semitendinosus?

Flexes knee

extends and internally rotates the hip joint

What is the function the the Semimembranosus?

extends and internally rotates the hip joint

Flexes knee

What is the function the the Gracilis?

Flexes knee

adducts hip

assists in internal rotation of the hip

What is the function the the Adductor Brevis?

Adducts the leg

hip flexion

What is the function the the Adductor Longus?

Adducts the leg

hip flexion

What is the function the the Adductor Magnus?

Adducts the leg

Hip extension and internal rotation

What muscles comprise the Anterior Compartment of the thigh?

Sartorius, Rectus Femoris, Vastus Lateralis, Vastus Intermedius and Vastus Medialis

What muscles comprise the Posterior Compartment of the thigh?

Bicep Femoris, Semitendonosus and Semimembranosus

What muscles comprise the Medial Compartment of the thigh?

Gracilis, Adductor Brevis, Adductor Longus and the Adductor Magnus

What is the action of the Levator Ani?

Supports the viscera in pelvic cavity

Controls urine flow

Inhibit defecation

What is the action of the Sphincter Ani?

Keeps the anal canal and anus closed

Aids in the expulsion of the feces

What is the action of the Superficial Perineal Pouch?

In males empties the urethra

In females clenches the vagina

What is the action of the Deep Perineal Pouch?

Constricts urethra

Maintains urinary continence

What is the action of the Psoas major?

Flexes and externally rotates the hip

Trunk flexion and lateral flexion

What is the action of the Psoas Minor?

Flexes the hip

Trunk flexion

What is the action of the Iliacus?

Flexes and externally rotates the hip

Trunk flexion

What is the action of the Gluteus maximus?

Extends the hip

External rotator of hip

Hip ab/adduction depending on fibers

What is the action of the Gluteus medius?

Abduct the hip

Hip Internal rotator

Stabilizer of the pelvis during gait

What is the action of the Gluteus minimus?

Stabilizer of the pelvis during gait

Abduct the hip

Hip Internal rotator

What is the action of the Tensor Fasciae Latae?

Hip abduction

Hip flexion

Hip Internal rotation

Trunk stabilization

What is the action of the Lateral Rotator Group?

Externally rotates the hip

Abducts the hip

What muscles comprise the Anterior Compartment of the pelvic region?

Iliacus

Psoas Major

Psoas Minor

What muscles comprise the Posterior Superficial Compartment of the pelvic region?

Gluteus Maximus

Gluteus Medius

Gluteus Minimus

What muscles comprise the Posterior Deep Compartment of the pelvic region?

Tensor Fasciae Latae

Lateral Rotator Group

What is the functions of the Biceps Brachii?

Flexes the elbow Flexes shoulder Supinates the R/U joint

What is the functions of the Brachialis?

Flexes the elbow

What is the functions of the Triceps Brachii?

Extends the elbow shoulder adduction and extension

What is the functions of the Anconeus?

Assists in extension of the elbow and stabilizes elbow while abducting the ulna during pronation

What is the functions of the Pronator Teres?

Pronates forearm and Flexes elbow

What is the functions of the Flexor Carpi Radialis?

Flexes the wrist and radial deviates the wrist Radialulnar pronation

What is the functions of the Palmaris Longus?

Flexes the wrist

What is the functions of the Flexor Carpi Ulnaris?

Flexes the wrist and ulnar deviates wrist Elbow flexion

What is the functions of the Flexor Digitorum Superficialis?

Flexes fingers Wrist flexion

What is the functions of the Pronator Quadratus?

Pronates forearm

What is the functions of the Flexor Digitorum Profundus?

Flexes digits 2-5

wrist flexion

What is the functions of the Flexor Pollicus Longus?

Flexes and opposes the thumb

wrist flexion

What is the functions of the Brachioradialis?

Flexes the elbow when wrist in neutral position (hammering) Radialulnar pronation and supination

What is the functions of the Extensor carpi radialis longus?

Extends and radial deviates the wrist Elbow flexion