Question | Answer |
Abdominal Wall: | Four Muscles:
1) External Oblique
2) Internal Oblique
3) Transversus Abdominus
4) Rectus Abdominus |
Abdominal Wall Muscle Functions: | -strengthen abdominal wall
-lateral flexion and rotation of trunk
-contain viscera
-shitting in any form (including child birth), vomiting and coughing |
External and Internal Oblique of Abdominal Wall Function: | -compresses abdominal wall
-flexes the vertebral column
-aids in trunk rotation and lateral flexion |
Rectus Abdominus of Abdominal Wall Function: | 1. flexes and rotates lumbar region
2. fixes and depresses ribs
3. stabilizes pelvis while walking
4. abs during sit ups and crunches |
Tranversus Abdominus of Abdominal Wall Function: | 1. compresses the abdominal contents |
Shoulder Joint: Humerus Movers Characteristics | 1. movers usually originate from pectoral girdle except for pectoralis major and latissmus dorsi
2. humerus abductor: originates from middle region of deltoid
3. humerus adductor: originates from pectoralis major and latissmus dorsi |
Humerus Arm flexor | origin is anterior to shoulder joint |
Humerus Arm extensor | origin is posterior to shoulder joint |
Shoulder Joint: Humerus Prime Movers | 1. Pectoralis Major
2. Latissimus Dorsi
3. Deltoid |
Shoulder Joint: Humerus Movements: Fibers originate anteriorly in DELTOID | 1.arm FLEXION
2. medial rotation |
Shoulder Joint: Humer Movements: Fibers originate posteriorly in DELTOID | 1. arm extension
2. lateral rotation |
Muscles of Forearm: Superficial Anterior | 1. Pronator Teres
2. Flexor Carpi Radialis
3. Palmeris Longus
4. Flexor Carpi Ulnaris
5. Flexor Digitorum Superficialis |
Muscles of Forearm: Pronator Teres | pronates forearm |
Muscles of Forearm: Flexor Carpi Radialis | 1. flexes wrist
2. abducts hand |
Muscles of Forearm: Palmaris Longus | 1. flexes the wrist
2. tightens skin and fascia during hand movement |
Muscles of Forearm: Flexor Carpi Ulnaris | 1. flexes wrist
2. adducts hand |
Muscles of Forearm: Flexor Digitorum Superficialis | 1. Flexes wrist
2. flexes middles phalanges of fingers 2-5 |
Muscles of Forearm: Posterior | 1. Extensor Corpi Radialis Longus
2. Brachioradialis
3. Extensor Digitorum
4. Extensor Carpi Ulnaris |
Muscles of Forearm: Brachioradialis | forearm flexion |
Muscles of Forearm: Extensor Carpi Radialis Longus | 1. extends wrist with extensor corpi ulnaris
2. abducts wrist with flexor corpi radialis |
Muscles of forearm: Extensor Digitormus | 2. finger extension |
Muuscles of Forearm: Extensor Carpi Ulnaris | 1. extends wrist with extensor corpi radialis
2. adducts wrist with flexor corpi ulnaris |