KINE 2850 Exam 2 Study Guide
What two muscles pronate the forearm?
Pronator Teres and Pronator Quadratus
The Subclavius, Serratus Anterior, and Pectoralis Minor are responsible for?
Protraction
At which joint do pronation and supination occur in the forearm?
Radioulnar Joint ; Transverse
The Middle Trapezius and Major/Minor Rhomboids are responsible for?
Retraction
The wrist has how many degrees of freedom?
2
Dorsal Interossei
Abduction
Function of the Suprispinatus?
Abduction
Abductor pollicis brevis
Abducts thumb at metacarpophalangeal & carpometacarpal joints
Palmar Interossei
Adducts carpometacarpal joint
Adductor Pollicis
Adducts the thumb
Where is the Acromioclavicular joint located?
Between the acromion and the clavicle
Where is the Coracoclavicular joint located?
Between the clavicle and the coracoid process.
Where is the sternoclavicular joint located?
Between the clavicle and the sternum
Where is the Glenohumeral joint located?
Between the scapula and the humerus
Flexes the elbow regardless of forearm position:
Biceps Brachialis
Most effective when the forearm is pronated
Brachioradialis
The Pectoralis Minor, Lower Trapezius, and Serratus Anterior are responsible for?
Depression
The Major/Minor Rhomboids, Pectoralis Minor, Levator Scapulae and Serratus Anterior are responsible for?
Downward Rotation
The Upper Trapezius and Levator Scapulae are responsible for?
Elevation
Which muscle extends the 5th finger concentrically?
Extensor Digiti Minimi
Wrist AND Finger EXTENSORS
Extensor Digitorum Extensor Digiti Minimi Extensor Indicus
Keeps the muscles from bowstringing during flexion
Extensor and Flexor Retinaculum
Wrist EXTENSORS
Extensor carpiradialis brevis Extensor carpiradialis longus Extensor carpiulnaris
Function of the infraspinatus?
External Rotation
Function of the Teres Minor?
External rotation/extends
Lumbricals
Flex metacarpophalangeal joints and extend interphalangeal joints of fingers
What motions occur at the humeroulnar joint? In which plane of motion do these occur?
Flexion and Extension ; Sagittal
What are the four motions of the wrist?
Flexion, Extension, Hyperextension and Circumduction
Wrist AND Finger FLEXORS
Flexor Digitorum Superficialis Adductor Pollicis Longus Flexor Digitorum Profundous
What joint is referred to as the ACTUAL shoulder joint?
Glenohumeral Joint
Functions of the Subscapularis?
Internal Rotation/Adduction
Which does the shoulder joint have more of: Mobility or Stability?
Mobility
Opponens digiti minimi
Opposes (flexes and laterally rotates) carpometacarpal and metacarpophalangeal joints of little finger
Opponens Pollicis
Opposes the thumb (Medially rotates and flexes)
Wrist Flexors:
Palmaris Longus Flexor Carpiradialis Flexor Carpiulnaris
Wrist FLEXORS
Palmaris Longus Flexor Carpiradialis Flexor Carpiulnaris
On which side of the body are the elbow flexors located?
Posterior
What joint is referred to as the only attachment of the shoulder girdle to the trunk?
Sternoclavicular Joint
Which muscle supinates the forearm?
Supinator
The Shoulder Girdle refers to?
The clavicle and the scapula
The Upper/Lower Trapezius and Serratus Anterior are responsible for?
Upward Rotation
The biceps brachii is most effective when the forearm is:
supinated