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What are the biggest muscles called?
maximus
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What are the smallest muscles called?
minimus
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What are long muscles called?
longus
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What are wide muscles called?
latissimus
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What are short muscles called?
brevis
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What are muscles in the quadriceps called?
vastus
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Where is the sternocleidomastoid located?
sternum and clavicle to the mastoid process
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What muscle is located on the anterior part of the tibia?
tibialis anterior
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What is the muscle running straight down in the middle abdominal area?
rectus abdominis
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What is the muscle around the eye?
orbicularis oculi
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What is the muscle around the mouth?
orbicularis oris
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Where is the temporalis located?
ontop of the temporal bone
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What do deltoid muscles look like?
upside down triangle
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What muscles are trapezoid shaped?
trapezius
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What do serratus anterior muscles look like?
serrated knife
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What do orbicularis oculi look like?
round muscle
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What do gracilis muscles look like?
long straight muscles on inside of thigh
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What 2 muscles move the shoulder?
- trapezius
- serratus anterior
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What does the trapezius move?
- posterior
- raises clavicle
- adducts scapula
- raises/lowers scapula
- extends head
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What muscle rotates the scapula laterally and lifts ribs?
serratus anterior
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What 3 muscles move the upper arm?
- pectoralis major
- latissimus dorsi
- deltoid
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What muscle covers the chest, flexes, adducts, and rotates arms medially?
pectoralis major
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What does the latissimus dorsi move?
- lg broad muscle of the back
- extends
- adducts
- rotates arm medially
- draws arm down and back
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What muscle abducts, flexes, and extends the arm?
deltoid
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What 4 muscles move the lower arm?
- biceps brachii
- brachialis
- brachioradialis
- triceps brachii
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What muscle flexes and supinates the forearm?
biceps brachii
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What 2 muscles flex the forearm?
- brachialis
- brachioradialis
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What muscle extends the forearm?
triceps brachii
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What 2 muscles move the hand?
- palmaris longus
- extensor carpi radialis longus
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What muscle flexes the wrist?
palmaris longus
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What muscle extends and abducts the wrist?
extensor carpi radialis longus
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What 4 muscles move the abdominal wall?
- external oblique
- internal oblique
- transversus abdominis
- rectus abdominis
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What do the internal and external obliques move?
- contraction of both sides compresses abdomen
- compression of one side = bends vert. column laterally
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What muscle compresses the abdomen?
transversus abdominis
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What does the rectus abdominis move?
- compresses abdomen
- aids in childbirth
- forced expiration
- defecation and urination
- flexes vert. column
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What 7 muscles move the thigh?
- rectus femoris
- gluteus maximus
- gluteus medius
- gluteus minimus
- tensor fasciae latae
- adductor group (magnus, longus, brevis)
- gracilis
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Which thigh muscle is the prime mover and flexes the thigh?
rectus femoris
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Which muscle extends and rotates the thigh laterally?
gluteus maximus
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What 2 muscles abducts and rotates the thigh medially?
- gluteus medius
- gluteus minimus
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What is the main abductor and flexes the thigh?
tensor fasciae latae
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What does the adductor group (magnus, longus, brevis) move?
- medial side of thigh
- adducts, flexes thigh
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What does the gracilis muscle move?
adducts thigh
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What 6 muscles move the lower leg?
- rectus femoris
- vastus lateralis
- vastus medialis
- vastus intermedius
- sartorius
- hamstring group (biceps femoris, semitendinosus, semimembranosus)
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What are the 4 quadricep muscles that extend the leg at the knee?
- rectus femoris
- vastus lateralis
- vastus medialis
- vastus intermedius
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What muscle allows you to sit cross legged, flexes leg and thigh and rotates it laterally?
sartorius
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What does the hamstring group move?
- posterior
- flexes leg
- extends thigh
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What 3 muscles are in the hamstring group?
- biceps femoris
- semitendinosus
- semimembranosus
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What 3 muscles move the foot?
- tibialis anterior
- gastrocnemius
- soleus
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What muscle dorsiflexes and inverts the foot?
tibialis anterior
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What does the gastrocnemius move?
- plantar flexes foot
- flexes knee
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What does the soleus move?
- plantar flexes foot
- "tip toes"
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What muscle moves the head?
sternocleidomastoid
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What does the sternocleidomastoid move?
- prime flexor
- both muscles=flex cervical part of vert. column; draws head forward
- one muscle=rotates head toward opposite side of contracted muscle
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What 2 muscles move the trunk?
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What is the largest muscle mass of the back, extends the head, cervical region, thoracic region, supports vert., and maintains posture?
sacrospinalis
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What muscle flexes the vertebral column?
iliopsoas
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What 3 muscles move the chest wall?
- external intercostals
- internal intercostals
- diaphragm
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What do the external intercostals move?
- between ribs
- lifts ribs during inspiration to increase space in thorax
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What do the internal intercostals move?
draws ribs together to decrease space in thoracic cavity during expiration
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What is the floor of the thoracic cavity, pulls central tendon down to increase vertical length of thorax during inspiration?
diaphragm
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What muscle moves the pelvic floor?
levator ani
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What does the levator ani move?
- pelvic floor
- supports pelvic structures
- contains opening for anal canal, urethra, and vagina
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What 3 muscles move facial expressions and mastication?
- orbicularis oculi
- orbicularis oris
- masseter
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What muscle closes the eye?
orbicularis oculi
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What muscle closes the mouth, lips, and shpes lips during speech?
orbicularis oris
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What muscle is for chewing, lifts mandible as in closing mouth, and provides side to side movement of mandible?
masseter
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