ACTIVITY 2

Barros, Francheska Jamila S.

Barros, Francheska Jamila S.

by Francheska Jamila Barros -
Number of replies: 0

  1. Throwing a baseball overhead 

  • Latissimus dorsi

    • Action: Extends, adducts and medially rotates arm

    • Innervation: Thoracodorsal nerve (C6-C8)

  • Pectoralis major

    • Action: Arm adduction, flexion, and extension

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

  1. Kicking a ball

  • Gastrocnemius and soleus muscles

    • Action: Plantar flexes foot and flexes leg at knee joint

    • Innervation: Tibial nerve

  • Tibialis anterior

    • Action: Dorsiflexes foot at talocrural joint and inverts foot at intertarsal joints

    • Innervation: Deep fibular nerve

  1. Doing sit-ups

  • Rectus abdominis

    • Action: Flexion of trunk

    • Innervation: Intercostal nerves (T7-T11) & Subcostal nerve (T12)

  • Transverse abdominis

    • Action: Bilateral contraction, Unilateral contraction

    • Innervation: Intercostal nerves (T7-T11), Subcostal nerve (T12), Iliohypogastric nerve (L1), Ilioinguinal nerve (L1)

  1. Breathing

  • Diaphragm

    • Action: Contraction of diaphragm (flatten and increases vertical dimension of thoracic cavity) resulting in inhalation, relaxation of diaphragm (move superiorly and decreases vertical dimension of thoracic cavity), resulting in exhalation.

    • Innervation: Phrenic nerve (C3-C5)

  • External intercostals

    • Action: Contraction elevates ribs and increases anteroposterior and lateral dimensions of thoracic cavity, inhalation. Relaxation depresses ribs and decreases anteroposterior and lateral dimensions of thoracic cavity, exhalation

    • Innervation: Spinal nerves (T2-T12)

 

 

References:

Dai, S. (2023). Tibialis anterior muscle. https://www.kenhub.com/en/library/anatomy/tibialis-anterior-muscle

 

Dale, P. (n.d.). The Muscles and Body Parts Needed to Kick a Football. https://www.livestrong.com/article/354537-the-muscles-body-parts-needed-to-kick-a-football/

Grujicic, R. (2023). Pectoralis major. https://www.kenhub.com/en/library/anatomy/major-pectoralis-muscle

 

Sendic, G. (2022). Transversus abdominis muscle. https://www.kenhub.com/en/library/anatomy/transversus-abdominis-muscle

 

Tortora, G., & Derrickson, B. (2017). Principles of Anatomy & Physiology (15th ed.). John Wiley & Sons, Inc.