Describe this aspect of the human body. Flashcards
Zygomaticus Major (Muscular System)
Raises corner of mouth.
Obicularis Oris (Muscular System)
Narrows mouth and purses lips.
Sternocleidomastoid (Muscular System)
Tilts and twists neck.
Trapezius (Muscular System)
Rotates and retracts scapula.
Deltoid (Muscular System)
Raises arm away from body to front, side, and rear.
Pectoralis Major (Muscular System)
Draws arm toward body; rotates upper arm inward.
Biceps Brachii (Muscular System)
Flexes forearm at elbow.
Medial Head of Triceps (Muscular System)
Extends arm at elbow.
External Oblique (Muscular System)
Flexes and rotates trunk.
Tensor Fasciae Latae (Muscular System)
Helps to keep knee straight.
Sartorius (Muscular System)
Flexes thigh at hip and leg at knee joint; turns thigh outward.
Rectus Femoris (Muscular System)
Flexes thigh at hip and with other quadriceps muscles, extends knee.
Vastus Lateralis (Muscular System)
Aids knee extension.
Tibialis Anterior (Muscular System)
Dorsiflexor and invertor of foot; supports arch of foot.
Gastrocnemius (Muscular System)
Plantar flexor of foot.
Soleus (Muscular System)
Plantar flexor of foot; aids forward propulsion.
Extensor Hallucis Longus (Muscular System)
Extends big top and dorsiflexes foot.
Occipitofrontalis (Muscular System)
Raises eyebrow.
Obicularis Oculi (Muscular System)
Closes eye.
Scalenus Anterior (Muscular System)
Aids breathing and neck flexion.
Pectoralis Minor (Muscular System)
Moves scapula forward.
External Intercostal (Muscular System)
Muscle of respiration.
Internal Intercostal (Muscular System)
Muscle of respiration.
Internal Oblique (Muscular System)
Flexes and rotates trunk.
Linea Alba (Muscular System)
Tendinous structure dividing left and right anterior abdominal muscles.
Illiopsoas (Muscular System)
Flexes thigh on pelvis at hip.
Pectineus (Muscular System)
Flexes and adducts thigh on pelvis at hip.
Abductor Pollicis Brevis (Muscular System)
Pulls thumb in towards palm.
Adductor Brevis (Muscular System)
Rotates and draws thigh in toward body.
Adductor Longus (Muscular System)
Rotates and draws thigh in toward body.
Fibularis Brevis (Muscular System)
Flexes foot downward, turns it outward.
Fibularis Longus (Muscular System)
Flexes foot downward, turns it outward.
Extensor Digitorum Longus (Muscular System)
Extends outer toes; helps to flex foot upward.
Extensor Hallucis Brevis (Muscular System)
Aids extension of middle three toes.
Abductor Hallucis (Muscular System)
Flexes big toe and moves it away from other toes.
Semispinalis Capitis (Muscular System)
Extends head and neck, and flexes them from side to side.
Splenius Capitis (Muscular System)
Moves head and twists neck.
Splenius Cervicis (Muscular System)
Rotates upper vertebre.
Levator Scapulae (Muscular System)
Lifts and twists shoulder.
Supraspinatus (Muscular System)
Raises arm and stabilizes shoulder.
Teres Minor (Muscular System)
Lifts and twists arm, stabilizes shoulder.
Infraspinatus (Muscular System)
Rotates arm and stabilizes shoulder.
Teres Major (Muscular System)
Lifts and twists arm, stabilizes shoulder.
Serratus Anterior (Muscular System)
Rotates and protracts scapula.
Erector Spinae (Muscular System)
Elevates and straightens vertebral column.
Internal Oblique Abdominal (Muscular System)
Supports abdominal wall; assists forced breathing; aids raising of intra-abdominal pressure; aids flexion and rotation of trunk.
Gluteus Maximus (Muscular System)
Raises thigh away from body at hip; rotates thigh; tilts pelvis when walking.
Quadratus Femoris (Muscular System)
Rotates and stabilizes hip.
Vastus Lateralis (Muscular System)
Extends and stabilizes hip.
Adductor Magnus (Muscular System)
Extends thigh on pelvis at hip.
Gracilis (Muscular System)
Moves thigh towards body; flexes and rotates thigh.
Popliteus (Muscular System)
Flexes and turns leg to unlock extended knee.
Tibialis Posterior (Muscular System)
Main muscle in turning sole of foot inward (inversion).
Rhomboid Minor (Muscular System)
Aids retraction of scapula.
Rhomboid Major (Muscular System)
Aids retraction of scapula.
Trapezius (Muscular System)
Rotates, elevates, and retracts scapula.
Deltoid (Muscular System)
Raises arm to front, rear, and side.
Latissimus Dorsi (Muscular System)
Extends, rotates, and lowers arm; pulls shoulder back.
Long Head of Triceps (Muscular System)
Extends (straightens) elbow.
Lateral Head of Triceps (Muscular System)
Extends (straightens) elbow.
Extensor Carpi Ulnaris (Muscular System)
Helps to extend wrist.
Flexor Carpi Ulnaris (Muscular System)
Helps to flex wrist.
Extensor Digitorum (Muscular System)
Extends all finger joints.
Gluteus Maximus (Muscular System)
Straightens hip.
Biceps Femoris (Muscular System)
Extends thigh at hip; flexes knee; rotates leg.
Semitendinosus (Muscular System)
Extends thigh at hip; flexes knee; rotates leg on thigh at knee.
Semimembranosus (Muscular System)
Extends thigh at hip; flexes knee; rotates leg on thigh at knee.
Gastrocnemius (Muscular System)
Plantar flexor of foot; flexes knee.
Cervical Spinal Nerves (Nervous System)
Emerge from spinal cord in neck to supply neck and arm.
Brachial Plexus (Nervous System)
Network of anterior branches of lower cervical spinal nerves, together with first thoracic spinal nerve; provides nerves to supply arm, forearm, and hand.
Intercostal Nerve (Nervous System)
Anterior branches of thoracic spinal nerves travel forward between ribs as intercostal nerves to supply muscles and skin of thorax.
Median Nerve (Nervous System)
Supplies most of muscles in front of forearm, and also some in hand.
Lumbar Plexus (Nervous System)
Network of anterior branches of lumbar spinal nerves; provides nerves to supply leg.
Femoral Nerve (Nervous System)
Supplies sensation over thigh and inner leg, and muscles in front of thigh, including quadriceps.