Shared Flashcard Set

Details

Musculature System
Overview of intro anatomy muscular system
70
Anatomy
Undergraduate 1
02/27/2008

Additional Anatomy Flashcards

 


 

Cards

Term

epicranius

Definition

frontalis 

occipitalis

galea aponeurotica 

Term
frontalis
Definition
raises eyebrows, wrinkles forehead.
Term
occipitalis
Definition
tenses and retracts scalp
Term
galea aponeurotica
Definition
flat sheet of tendon connecting frontalis to occipitalis. galea- helmet. aponeurotica- flat sheet of tendon
Term
orbicularis oculi
Definition
closes the eye (facial muscle- circular around eye)
Term
orbicularis oris
Definition
circular spincter muscle, surrounds the mouth and compresses the lips against the teeth.
Term
zygomaticus major
Definition
raises corners of lips for a smile, attaches to corner skin of lip
Term
levator labii superioris
Definition
raises the upper lip, flares nostrils (directly below  orbicularis oculi)
Term
depressor labii inferioris
Definition
Lowers lower lip, as if to frown (on each corner of mouth below orbicularis oris)
Term
buccinator
Definition
blows out air, sucks air in.
Term
platysma
Definition
tenses skin of neck, depresses mandible
Term
Chewing
Definition
Masseter, Temporalis muscles, Pterygoid muscles
Term
masseter
Definition
closes the mouth, elevates the mandible
Term
temporalis
Definition
elevates the mandible.
Term
Medial Pterygoids
Definition
elevates mandible and moves it from side to side (grinding teeth, run vertically)
Term
lateral pterygoids
Definition
depresses the jaw and moves it from side to side. (run horizontal)
Term
The neck
Definition
Platysma, Sternocleidomastoid, splenius capitus, trapezius
Term
Platysma, Sternocleidomastoids
Definition

Together: flex the cervical vertebral column

Individually:Turn the head towards the shoulder and face to the opposite side 

Term
Splenius capitus
Definition
(3 muscles) individually rotate the heat, together they extend the head.
Term
Trapezius
Definition
Moves the scapula (elevates- shrugs, retracts (squares), depresses, or rotates.
Term
Thoracic muscles
Definition
Diaphragm, Internal and External Intercostals.
Term
Diaphragm
Definition
Expands thoracic cavity and compresses abdominal cavity. (Is the way you breathe- creating low pressure system in lungs that way external air flows in)
Term
external intercostals
Definition
draw the ribs together, elevate the ribs during respiration
Term
Internal intercostals
Definition
Depress ribs during forced expiration.
Term
Things that pass through diaphragm
Definition
Descending aorta, Inferior Vena Cava, Esophagus
Term
Rectus abdominis
Definition
compresses abdomen, flexes the spine. contains the linea alba - literally white line, ct that passes medially vertically seperating muscle. Tendinous Intersection - tendon that run horizontally seperating muscle tissue in the rectus abdominus
Term
Abdominal Muscles
Definition
Rectus Abdominis, External and Internal Obliques, Transversus Abdominus
Term
External Oblique, Internal Oblique
Definition
Compress the abdomen and flex the vertebral column laterally. Run in opposite directions.
Term
Tranverse Abdominis
Definition
Compresses the abdomen- runs across horizontally. deepest
Term
Pelvic floor muscles (Urinogenital triangle)
Definition
Bulbospongiosis, Ischiocavernosus, Superficial Transverse Perineus
Term
Pelvic floor muscles (anal triangle)
Definition
External Anal Sphincter, Levator Ani
Term
Bulbospongiosis
Definition

Male- helps empty urethra of urine or semen, assists in the erection of the penis

Female- contricts vaginal opening, assists in erection of clitoris.

Term
Ischiocavernosus
Definition

Male- helps maintain erection of penis

Female- helps maintain erection of clitoris

Term
superficial transverse perineus
Definition
Helps stabilize perineum (pelvic floor)
Term
External anal Sphincter
Definition
Keeps anal canal oriface closed
Term
Levator ani
Definition
Tenses floor of the pelvis, elevates and retracts anus
Term
Appendicular Musculature
Definition
Responsible for stabilizing the pectoral and pelvic girdles, responsible for moving the upper and lower limbs.
Term
Prime Mover
Definition
Muscle with a major responsibility for a certain movement. (ie: biceps- not the only one to move arm but major contributor.
Term
Antagonist
Definition
Muscle that opposes or reverses a prime mover. (ie: triceps)
Term
Synergist
Definition
Muscle that aids a prime mover in a movement and helps prevent rotation
Term
Flexor, Extensor, Abductor, Adductor, Pronator, Supinator
Definition
Flex.- bends a limb at a joint and out of anatomical position. Extens.- Straightens a joint and back into anatomical position. Abductor- moves a bone away from the midline of the body. Adductor- Moves a bone back to the midline of the body. Pronator- palm down Supinator- Palm up
Term
Example of movements in humerus
Definition
Slide 7
Term
Muscles of Pectoral Girdle (scapulae stabilization)
Definition
Trapezius, Rhomboids, Serratus Anterior, Levator Scapulae, Pectoralis Minor
Term
Trapezius
Definition
elevate, retract, depress, rotate scapulae
Term
rhomboids (major and minor)
Definition
adducts scapulae
Term
Serratus Anterior
Definition
abducts and elevates scapula
Term
Levator scapulae
Definition
elevates scapula
Term
Pectoralis Minor
Definition
Depresses, rotates scapula
Term
Muscles of Rotator (Musculoteninous) Cuff
Definition
Supraspinatus, Infraspinatus, teres minor, subscapularis (move the shoulder joint)
Term
Muscles that move brachium at shoulder
Definition
Pectoralis major, Deltoid, Latissimus Dorsi, Teres major, rotator cuff muscles
Term
Deltoid
Definition
Abducts the shoulder joint
Term
Pectoralis major
Definition
flexes and adducts the shoulder joint
Term
Latissimus Dorsi
Definition
extends and adducts the shoulder joint
Term
Teres Major
Definition
extends and adducts the shoulder joint
Term
Summary of the movers in the upper extremity pectoral girdle region.
Definition

Flexors- Pectoralis Major; Deltoid

Extensors - Latissimus Dorsi; Teres Major and Minor.

Abductors- Deltoid; Supraspinatus

Adductors- Pectoralis Major; Latissimus Dorsi, Teres Major, Infraspinatus

Term
Muscles at the elbow that move the forearm
Definition

Flexors: Biceps Brachii, Brachialis; Brachioradialis

Extensors: Triceps Brachii

Pronators: Pronator Teres 

Supinators:  Supinator; Biceps

Term
Muscles that move the thigh
Definition
Gluteus maximus, Gluteus medius, Gluteus, Iliopsoas, Tensor fasciae latae
Term
Gluteus Maximus
Definition
Extends the thigh
Term
Gluteus medius
Definition
Abducts thigh, (stabilizes the pelvis when opposite leg is lifted off the ground.)
Term
Gluteus Minimus
Definition
Medial rotation of the thigh.
Term
Iliopsoas
Definition
composed of psoas major and iliacus, flexes thigh and flexes the vertebral column.
Term
Tensor fasciae latae
Definition
Flexes the thigh, pulls on the iliotibial tract.
Term
Sartorius
Definition
Flexes the hip and knee joint.
Term
Quadriceps femoris
Definition
Rectus femoris, Vastus lateralus, Vastus medialis, Vastus intermedius. All these muscle work to extend the knee (kicking motion) Rectus femoris- flexing alone flexes the hip.
Term
Medial thigh (adductor muscles)
Definition
Gracilis, Pectineus, Adductor magnus longus and brevis. (hold you on a horse)
Term
Posterior thigh muscles
Definition
(extention of the the thigh and flexors of the leg) biceps femoris, semitendinosus, semimembranosus
Term
Tibialis anterior
Definition
responsible for dorsiflexion (lifting foot)
Term
gastrocnemius
Definition
plantar flexion (tiptoes)
Term
calcanean (Achilles) tendon
Definition
attaches gastrocnemius to the calcaneus
Term
soleus
Definition
plantar flexion (tiptoes)
Supporting users have an ad free experience!