BIO106 Lab Final

These flashcards cover key muscles and their actions, focusing on shoulder, wrist, hip, and forearm functions, as well as specific muscle groups relevant to common injuries and actions.

Flexors of the shoulder

Two muscles that flex the shoulder are the anterior deltoid and the pectoralis major.

Flexors of the wrist

Two muscles that flex the wrist are the flexor carpi radialis and the flexor carpi ulnaris.

Elevators of the scapula

Two muscles that elevate the scapula are the trapezius and the levator scapulae.

Flexors of the hip

Two muscles that flex the hip are the iliopsoas and the rectus femoris.

Rotator cuff purpose

The main function of the rotator cuff is to stabilize the shoulder joint.

Thenar muscles origin

The thenar muscles originate from the tubercle of the scaphoid bone and the anterior surface of the flexor retinaculum.

Hypothenar muscles origin

The hypothenar muscles originate from the pisiform bone and the flexor retinaculum.

Primary action of the quadriceps

The primary action of the quadriceps is knee extension.

Primary action of the hamstrings

The primary action of the hamstrings is knee flexion.

Supinators of the forearm

Two muscles of forearm supination are the biceps brachii and the supinator muscle.

Affected muscles in Achilles tendon rupture

Muscles affected in an Achilles tendon rupture include the gastrocnemius and soleus, affecting plantar flexion.

Muscles involved in opening a door

Seven muscles involved in opening a door include the deltoid, pectoralis major, trapezius, latissimus dorsi, infraspinatus, supraspinatus, and teres major.