ACTIVITY 2

TAN, Miguel Francis C.

TAN, Miguel Francis C.

by Miguel Francis Tan -
Number of replies: 0

  1. Throwing a baseball overhead

  • Latissimus dorsi

    • Innervation: Thoracodorsal nerve (C6, 7, 8)

    • Action: Extends, adducts and medially rotates arm. Costal attachment helps with deep inspiration and forced expiration

  • Pectoralis major

    • Innervation: Lateral and medial pectoral nerves (C5-T1)

    • Action: Arm adduction, Arm rotation, Arm flexion, Arm extension

  1. Kicking a ball

  • Quadriceps

    • Innervation: Femoral nerve (L2-L4)

    • Action: Extension of the knee joint

  • Rectus Femoris

    • Innervation: Femoral nerve

    • Action: Hip flexion, knee extension

  1. Doing sit-ups

  • Rectus abdominis

    • Innervation: Thoracoabdominal nerves (T7-T11)

    • Action: Flexes trunk, aids forced expiration and raise intra-abdominal pressure

  • Transverse abdominis

    • Innervation: Thoracoabdominal nerves (T7-T11), subcostal nerve (T12) and branches of the lumbar plexus

    • Action: Compression of abdominal contents

  1. Breathing

  • Diaphragm

    • Innervation: Phrenic nerve

    • Action: Inspiration and assists in raising intra-abdominal pressure

  • Intercostal muscles

    • Innervation: Intercostal nerve

    • Action: Enables forced expiration by depressing the ribs, thus shrinking the diameter of the thoracic cavity and pushing the air out of the lungs