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64 Cards in this Set

  • Front
  • Back
Frontalis
Facial

Raises the eyebrows
Temporalis
Facial

Closes jaw
Zygomaticus
Facial

Smiling muscle
Sternocleidomastoid
Neck

Prime mover of active head flexion.
Pectoralis Minor
Thorax

Draws scapula forward and downward
Pectoralis Major
Thorax

Prime mover of arm flexion
Intercostals
Thorax

Pulls ribs toward one another to elevate the rib cage
Rectus Abdominis
Abdomen

Stabilize pelvis during walking
External Oblique
Abdomen

Aid muscles of back in trunk rotation
Internal Oblique
Abdomen

Aid muscles of back in lateral flexion
Transversus abdominis
Abdomen

Compresses abdominal contents
Sartorius
Thigh

Flexes and laterally rotates thigh
Adductor longus
Thigh

Adducts thigh
Gracilis
Thigh

Medially rotates leg
Gastrocnemius
Leg

Plantar flexes foot when knee is extended
Soleus
Leg

Plantar flexes ankle
Trapezius
Shoulder

Stabilizes, raises, retracts, and rotates scapula
Deltoid
Shoulder

Prime mover of arm abduction
Triceps brachii
Arm

Powerful forearm extensor
Biceps brachii
Arm

Flexes elbow joint and supinates forearm
Brachialis
Arm

Major forearm flexor
Brachioradialis
Forearm

Synergist in forearm flexion
Iliopsoas
Pelvis/Thigh

Prime mover of hip flexion
Rectus femoris
Thigh

Flexes thigh at hip
Vastus lateralis
Thigh

Extends knee
Vastus medialis
Thigh

Inferior fibers stabilize patella
Tibialis anterior
Leg

Prime mover of dorsiflexion
Masseter
Facial

Prime mover of jaw closure
Pronator teres
Forearm

Weak flexor of elbow
Flexor carpi radialis
Forearm

Powerful flexor of wrist
Latissimus dorsi
Back

Prime mover of arm extension
Gluteus medius
Hip

Abducts and medially rotates thigh
Gluteus maximus
Hip

Major extensor of thigh
Biceps femoris
Hamstrings

Laterally rotates leg
Semitendinosus
Hamstrings

Extends thigh at hip
Semimembranosus
Hamstrings

Medially rotates leg
Calcaneal
Leg

Attachment of gastrocnemius
Occipitalis
Neck

Fixes aponeurosis and pulls scalp posteriorly.
Infraspinatus
Shoulder

Helps to hold head of humerus in glenovial cavity
Teres major
Shoulder

Extends, medially rotates, and adducts shoulder
Extensor carpi radialis longus
Forearm

Extends and abducts the wrist.
Epimysium
Overcoat that the fascicles are bound together by.
Perimysium
Covers fasicles.
Endomysium
Covering of each muscle fiber.
Fascicles
Several ensheathed fibers.
Sarcolemma
Membrane surface.
Sarcoplasm
Cytoplasm for muscle
M Line
Divides through H Zone.
Z Disc
Dark area on I Band.
Myosin
Thick filament; Extend across entire length of A Band.
Actin
Thin filament.
Myofibrils
Run parallel to each other.
Striations
Repeating dark and light bands.
A Band
Dark region; Anisotrophic; Able to polarize light.
I Band
Light region; Isotrophic.
H Zone
Light, striped midsection of each A Band.
Sacromere
Region of a myofibril between two Z discs.
Titin
Elastic filament.
1.Skeletal
2.Cardiac
3.Smooth
Three types of muscle?
Skeletal Muscle Tissue
Attach and cover the bony skeleton.
Cardiac Muscle Tissue
Striated, but not voluntary.
Smooth Muscle Tissue
Found in the walls of hollow visceral organs.
1.Produce Movement
2.Maintaining Posture
3.Stabilizing Joints
4.Generating Heat
Four functions of muscle?
1.Action potential propogates along the sarcolemma and down the T tubules.
2.Action potential triggers Ca2 release from terminal cisternae of SR.
3.Calcium ions bind to troponin.
4.Myosin cross bridges alternately attach to actin and detach, pulling the actin filaments toward the center of the sacromere.
5.Removal of Ca2 by active transport into the SR after the action potential ends.
6.Tropomyosin blockage restored blocking actin active site.
How Muscle Contracts?