ACTIVITY 2

KING, Jacob Alexander V._Activity 2

KING, Jacob Alexander V._Activity 2

by Jacob Alexander King -
Number of replies: 0

  1. Turning a door knob

    1. Supinator

      1. Action: Proximal radioulnar joint: Forearm supination

      2. Innervation: Posterior interosseous nerve

    2. Pronator teres

      1. Action: Pronation of forearm at the  proximal radioulnar joint, flexion of the forearm at the elbow joint

      2. Innervation: Median nerve

    3. Pronator quadrates muscles

      1. Action: Proximal radioulnar joint: Forearm pronation

      2. Innervation: Median nerve

  2.  Throwing a baseball overhead

    1. Teres major

      1. Action: internal rotation, extension, and adduction of the shoulder;

      2. Innervation: Lower subscapular nerve

    2. Subscapularis

      1. Action: Arm internal rotation; stabilizes humeral head in glenoid cavity

      2. Innervation: Upper and lower subscapular nerves

    3. Deltoid

      1. Action: Arm abduction

      2. Innervation: Axillary nerve

  3.  Kicking a ball

    1. Gluteus maximus

      1. Action: Thigh extension, thigh external rotation, thigh abduction, thigh adduction

      2. Innervation: Inferior gluteal nerve

    2. Iliopsoas

      1. Action: assists in external rotation of the femur

      2. Innervation: Iliacus: femoral nerve; Psoas major: Anterior rami of spinal nerve

    3. Rectus femoris

      1. Action: Extend leg at knee joint

      2. Innervation: Femoral nerve

  4.  Doing sit-ups

    1. Rectus abdominis

      1. Action: Flexion of trunk

      2. Innervation: Intercostal nerves, subcostal nerves 

    2. Transverse abdominis

      1. Action: Bilateral contraction - compresses abdominal viscera, expiration; Unilateral contraction - trunk rotation

      2. Innervation: Intercostal nerves, subcostal nerve, iliohypogastric nerve, ilioinguinal nerve

    3. Internal oblique

      1. Action: Bilateral contraction - trunk flexion, compressed abdominal viscera, expiration; Unilateral contraction: trunk lateral flexion, trunk rotation

      2. Innervation: Intercostal nerves, subcostal nerve, iliohypogastric nerve, ilioinguinal nerve

  5.  Walking

    1. Soleus

      1. Action: plantarflexor of the ankle joint

      2. Innervation: Tibial nerve

    2. Gastrocnemius

      1. Action: plantar flexor of the foot at the talocrural joint

      2. Innervation: Tibial nerve

    3. Tibialis posterior

      1. Action: Talocruural joint: foot plantarflexion; subtalar joint: foot inversion; supports medical longitudinal arch of foot

      2. Innervation: Tibial nerve

  6. Breathing

    1. Diaphragm

      1. Action: Contracts and flattens during inhalation

      2. Innervation: Phrernic nerves

    2. Internal intercostal muscles

      1. Action: Depress ribs during forced expiration; support intercostal spaces and thoracic cage

      2. Innervation: Intercostal nerves

    3. External intercostal muscles

      1. Action: Elevate ribs during forced inspiration; Supports intercostal spaces and thoracic cage

      2. Innervation: Intercostal nerves