| A | B |
|---|
| Action of Occipitalis | retract scalp |
| Origin of occipitalis | superior nuchal line |
| insertion of occipitalis | galea aponeurotica |
| innervation of occipitalis | facial nerve |
| Action of Frontalis | elevates eyebrow |
| origin of Frontalis | galea aponeurotica |
| insertion of Frontalis | subcutaneous tissue of eyebrow |
| innervation of frontalis | facial nerve |
| action of levator anguli oris | elevates angle of mouth (in smiling) |
| origin of levator anguli oris | maxilla |
| insertion of levator anguli oris | muscles at corners of the mouth |
| innervation of levator anguli oris | facial nerve |
| action of zygomaticus major | draws angle of mouth up and laterally (laughing) |
| origin of zygomaticus major | zygomatic bone |
| insertion of zygomatic bone | superolateral angle of mouth |
| innervation of zygomatic bone | facial nerve |
| action of styloglossus | draws tongue up and posterior |
| origin of styloglossus | styloid process of temportal bone |
| insertion of styloglossus | superolateral surface of tongue |
| innervation of styloglossus | hypoglossal nerve |
| action of palatoglossus | elevates root of tongue and closes oral cavity from pharynx |
| origin of palatoglossus | soft palate |
| insertion of palatoglossus | lateral surface of tongue |
| innervation of palatoglossus | accessory and vagus nerves |
| action of genioglossus | draws tongue to one side or the other |
| origin of genioglossus | superior mental spine |
| insertion of genioglossus | inferior surface of tongue from root to apex |
| innervation of genioglossus | hypoglossal nerve |
| action of temporalis | elevation and retraction of mandible |
| origin of temporalis | temporal lines and temporal fossa of cranium |
| insertion of temporalis | coronoid process |
| innervation of temporalis | mandibular nerve |
| action of masseter | elevation of mandible |
| origin of masseter | zygomatic arch |
| insertion of masseter | lateral surface of mandibular ramus and angle |
| innervation of masseter | mandibular nerve |
| action of sternocleidomastoid | rotate head |
| origin of sternocleidomastoid | manubrium of sternum |
| insertion of sternocleidomastoid | mastoid process |
| innervation of sternocleidomastoid | accessory nerve & spinal nerves C2-C3 |
| action of external anal sphincter | retains feces in rectum |
| origin of external anal sphincter | coccyx |
| insertion of external anal sphincter | encircles anal canal and orfice |
| innervation of external anal sphincter | pudendal nerve, spinal nerves S2-S3, pelvis splanchnis nerve |
| innervation of Levator ani | Pudendal nerve, spinal nerves S2-S3 |
| insertion of levator ani | coccyx |
| action of levator ani | compresses anal canal and helps with pooping |
| origin or levator ani | inner surface of lesser pelvis from pubis |
| action of pectoralis major | felx, adduct, and medially rotate humerus |
| origin of pectoralis major | medial half of clavicle |
| insertion of pectoralis major | lateral lip of inter tubercular sulcus of humerus |
| innervation of pectoralis major | medial and lateral pectoral nerves |
| action of deltoid | flex and medially rotate arm, abduct arm |
| origin of deltoid | acromion and spine of scapula |
| insertion of deltoid | deltoid tuberosity of humerus |
| innervation of deltoid | axillary nerve |
| action of trapezius | stabilize scapula, elevate and depress apex of shoulder |
| origin of trapezius | external occipital protuberance |
| insertion of trapezius | acromion and spine of scapula |
| innervation of trapezius | accessory nerve, anterior rami of C3-C4 |
| action of brachialis | elbow flexion |
| origin of brachialis | anterior, distal half of humerus |
| insertion of brachialis | coronoid process and tuberosity of ulna |
| innervation of brachialis | musculocutaneous nerve, radial nerve |
| action of biceps brachii | rapid supination of forearm |
| origin of biceps brachii | long head: inferior margin of glenoid cavity. Short head: coracoid process |
| insertion of biceps brachii | tuberosity of radius |
| innervation of biceps brachii | musculocutaneous nerve |
| action of flexor carpi radialis | radial flexion of wrist |
| origin of flexor carpi radialis | medial epicondyle of humerus |
| insertion of flexor carpi radialis | base of metacarpal II-III |
| innervation of flexor carpi radialis | median nerve |
| action of flexor carpi ulnaris | ulnar flexion of wrist |
| origin of flexor carpi ulnaris | medial epicondyle of humerus |
| insertion of flexor carpi ulnaris | pisiform & hamate |
| innervation of flexor carpi ulnaris | ulnar nerve |
| action of extensor carpi radialis longus | extends wrist |
| origin of extensor carpi radialis longus | lateral supracondylar ridge of humerus |
| insertion of extensor carpi radialis longus | base of metacarpal II |
| innervation of extensor carpi radialis longus | radial nerve |
| action of extensor carpi radialis brevis | extends wrist |
| origin of extensor carpi radialis brevis | lateral epicondyle of humerus |
| insertion of extensor carpi radialis brevis | metacarpal III |
| innervation of extensor carpi radialis brevis | Posterior interosseous nerve |
| action of gluteus maximus | extends thigh at hip, abducts thigh, elevates trunk |
| origin of gluteus maximus | posterior gluteal line of illium |
| insertion of gluteus maximus | gluteal tuberosity of femur |
| innervation of gluteus maximus | inferior gluteal nerve |
| action of gastrocnemius | flexes foot, knee |
| origin of gastrocnemius | condyles, popliteal surface |
| insertion of gastrocnemius | calcaneus |
| innervation of gastrocnemius | tibial nerve |
