Axial & Appendicular Muscles

Axial: Origin & Insertion

100

Origin & Insertion of the Sternocleidomastoid

Origin: sternum & clavicle

Insertion: Mastoid process

200

Origin & Insertion of the styloglossus 

Origin: Tongue

Insertion: Styloid process

300

Origin & Insertion of the medial & lateral pterygoid

Origin: Pterygoid process

Insertion: Mandible

400

Origin & Insertion of the rectus abdominis 

Origin: Pubis

Insertion: Xiphoid process

500

Origin & Insertion of the scalanes

Origin: Transverse process of cervicals 

Insertion: First & second ribs

Axial: Action

100

Action of the levator labii superioris 

Brings the lips up

200

Action of the platysma

Depresses the mandible & draws the corners of the mouth down

300

Action of the thyrohyoid

Depresses the hyoid bone & elevates the larynx

400

Action of the hyoglossus 

Depression & retraction of the tongue

500

Action of the scalanes

Anteroflexion of the neck & cause elevation of the first & second ribs during FORCED inspiration

Appendicular: Origin & Insertion

100

Origin & Insertion of the deltoid

Origin: Scapula

Insertion: Deltoid tuberosity of the humerus

200

Origin & Insertion of the brachioradialis

Origin: distal end of humerus

Insertion: Distal end of radius

300

Origin & Insertion of semimembranosus

Origin: Ischial tuberosity

Insertion: Tibia

400

Origin & Insertion of trapezius

Origin: Occipital bone & nucal ligament

Insertion: Acromion & the spine of the scapula

500

Origin & Insertion of piriformis

Origin: Anterior portion of sacrum

Insertion: Posterior side of greater trochanter

Appendicular: Action

100

Action of the levator scapulae

Elevates the scapula

200

Action of the adductor pollicis

Adducts the pollex (thumb)

300

Action of the anconeus

Extends the ulna & radius

400

Action of the fibularis longus

Eversion of the foot

500

Action of the tibialis anterior

Dorsiflexion & inversion

Clinical Application

100

Sprain v. Strain?

Sprain: injury to ligament

Strain: injury to tendon

200

What muscles make up the rotator cuff?

Supraspinatus, infraspinatus, teres minor, & subscapularis

300

What causes Bell's Palsy?

Inflammation of the trigeminal nerve

400

Intramuscular injections?

Injected in the deltoid muscle if less then 2 mL

Injected in the gluteus medius if greater than 2 mL

500

What's the difference between a direct & indirect hernia?

Indirect: the ingunial canal does NOT close up during embryonic development & abdominal contents start herniating as they fall into the canal

Direct: herniating does not occur directly within the inguinal canal, but happens near it