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A&P I - Muscles
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Temporalis
Closes jaw
Masseter
Closes jaw
Rectus abdominis
Indirectly flexes the vertebrae
External oblique
Indirectly flexes and rotates vertebral column
Internal oblique
Indirectly flexes and rotates vertebral column
External intercostal
Pulls ribs together and up; increases area of thorax (breath in)
Internal intercostal
Pulls ribs together and down; decreases area of thorax (breath out)
Pectoralis major
Flexes and rotates entire arm
Pectoralis minor
Pulls scapula forward
Serratus anterior
Rolls scapula forward
Serratus posterior
Pulls ribs down and back; breath in
Transverse abdominis
Compresses the abdomen (containing viscera)
Latissimus dorsi
Rotates back and extends arm
Trapezius
Stabilizes scapula
Rhomboid major
Retracts scapula
Rhomboid minor
Retracts scapula
Levator scapulae
Shrug shoulders; flexes neck sideways; elevates scapula
Diaphragm
Increases area within lungs (compresses and pushes down)
Deltoid
Abducts entire arm
Supraspinatus
Abducts entire arm (with deltoid)
Infraspinatus
Rotates arm out (forward)
Subscapularis
Rotates arm in (back)
Coracobrachialis
Flexes entire arm (pulls arm up)
Teres major
Stabilizes shoulder
Teres minor
Stabilizes shoulder
Biceps brachii
Flexes forearm
Brachialis
Flexes forearm
Triceps brachii (long, lateral, medial heads)
Extends forearm
Pronator teres
Twists/pronates forearm
Gluteus maximus
*Extends thigh; straightens leg
Gluteus medius
Medially rotates thigh
Biceps femoris (long and short heads) - hamstrings
Extends thigh and flexes knee (located laterally)
Semitendinosus
Flexes thigh and flexes knee (located medially)
Semimembranosus
Extends thigh and flexes knee (located medially)
Gracilis
Adducts thigh and flexes leg (located medially)
Sartorius (*longest muscle in body)
Flexes, abducts, & laterally rotates thigh
Tensor fascia latae
Flexes, adducts, & medially rotates thigh
Rectus femoris
Flexes thigh and extends knee
Vastus medialis
Extends knee
Vastus lateralis
Extends knee
Vastus intermedius
Extends knee
Tibialis anterior
Dorsiflexion of foot
Extensor digitorum longus
Dorsifexion of foot and extends toes
Fibularis longus
Plantar flexion/foot eversion
Fibularis brevis
Plantar flexion/foot eversion
Gastrocnemius (lateral and medial heads)
Plantar flexion/some knee bend
Soleus
Plantar flexion
Popliteus
Flexes and medially rotates lower leg
Flexor hallucis longus
Plantar flexion of hallux
Flexor digitorum longus
Plantar flexion of toes
Calcaneal (Achilles) tendon
Connects soleus and gastrocnemius to calcaneus
Author
alison.cygan
ID
187140
Card Set
A&P I - Muscles
Description
A&P muscles for lab
Updated
2012-12-05T00:16:22Z
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