MUSCLES QUIZ--UPPER BODY

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Which muscle is completely superficial?

Deltoid

The origin of deltoid is the same for...?

Trapezius

What action can you ask your partner to perform to contract deltoid?

Abduction

What action can't the anterior fibers of the deltoid do?

Horizontal abduction

What shoulder movement lengthens the anterior fibers of deltoid?

Extension

What fibers of trapezius elevate the scapula?

Upper fibers

Bilateral contraction of the upper fibers of trapezius create what movement?

Head/neck extension

What part of the traps adduct the scapula?

Middle

What is also knows as "Lat's little helper"?

Teres major

Which shoulder movement should lengthen latissimus dorsi?

Abduction

The four rotator cuff muscles stabilize what joint?

Glenohumeral

How would you locate supraspinatus' belly?

Palpate the upper fibers of trapezius

Which rotator cuff muscle attaches to the lesser tubercle?

Subscapularis

What is the insertion of the remaining three rotator cuff muscles?

Greater tubercle

Which shoulder movement shortens infraspinatus?

Horizontal abduction

Which muscle is located between the scapula and vertebral column?

Rhomboids

Rhomboids are superficial to the erector spinae and deep to the ___?

Trapezius

What movement of the head and neck would lengthen levator scapula on the right side?

Lateral flexion to the left

What action would make levator scapula contract?

Elevate the scapula

Serratus anterior abducts the scapula making it a direct antagonist to _____?

Rhomboids

Which muscle has three parts--clavicular, sternal, and costal?

Pec major

Which muscle is an antagonist of itself?

Pec Major

Pec minor is located deep to which muscle?

Pec major

Which movement lengthens fibers of biceps brachii?

Pronation of the forearm

Which muscle does not attach to the coracoid process?

Triceps

Which is the only muscle on the posterior arm?

Triceps

Which movement shortens the triceps?

Extension of the elbow

Which movement lengthens coracobrachialis?

Shoulder abduction

Which is the origin of deltoid?

Lateral 1/3 clavical, acrominon process and spine of scapula

What is the insertion of deltoid?

Deltoid tuberosity

A part of trapezius origin?

External occipital protuberance

What is the insertion of trapezius?

Lateral 1/3 clavical, acrominon process and spine of scapula

What is the action of lat dorsi?

Medial rotation

What is the origin of the short head of biceps brachii?

Coracoid process of the scapula

What is the origin on supraspinatus?

Supraspinous fossa

What is the origin of infraspinatus?

Infraspinous fossa

What is the origin of subscapularis?

Subscapular fossa

What is the action of subscapularis?

Medial rotation of the shoulder

What is the origin of Rhomboid major?

Spinous processes of T2-T5

What is the origin of Rhomboid minor?

Spinous processes of C7-T1

What is the origin of lavator scapula?

Transverse processes of C1-C4

What is the action of levator scapula?

Elevate the scapula

What is the insertion of pec major?

Greater trubercle of the humerus

What is the action of biceps brachaii?

Flex the elbow

What is the action of triceps brachaii?

Extend the elbow

What is the action of coracobrachialis?

Flex the shoulder

What muscle acts as an antagonist to brachialis during shoulder flexion?

Anconeus

What action lengthens the fibers of brachialis?

Extension of the elbow

Which muscle runs the length of the forearm but does not cross the wrist joint?

Brachioradialis

What is an action of serratus anterior?

Abduct the scapula

In the anatomical position, the extensor group is on which side of the forearm?

Posterior

Which movement lengthens the fibers of extensor carpi radialis longus & brevis?

Adduction of the wrist

In general, the origin of the extensor group is found where?

The lateral epicondyle of the humerus

What triangle shape muscle is a weak elbow extensor located on the olecranon process?

Anconeus

What muscle primarily extends the index finger?

Extensor indicis

Which movement lengthens the fiber palmaris longus?

Wrist extension

What is the synergyst to the pronator teres?

Pronator quadratus

How many muscles act on the thumb?

Eight

What muscle is responsible for opposition of the thumb?

Oppenens pollicis

What is the origin of brachialis?

Distal 1/2 anterior process of humerus

What is the insertion of brachioradialis?

Styloid process of radius

What is the origin of extensor carpi radialis longus?

Lateral supercondylar ridge

What is the action of extensor carpi radialis longus?

Abduction of the wrist

What is the action of extensor carpi radialis brevis?

Assist flexion of the elbow

What is the insertion of extensor digitorum?

Middle and distal phalanges of 2-5th fingers

What is the action of extensor digitorum?

Assist to extend the wrist

What is the origin of pronator teres?

Medial epicondyle of the humerus

What is the origin of pronator quadratus?

Medial anterior surface of distal ulna

What is the action of pronator quadratus?

Pronate the forearm

What is the insertion of supinator?

Lateral surface, proximal shaft of radius

List the erector spinae group.

Spinalis, longissimus, iliocostalis

Which movement of the vertebral column will shorten the erector spinae?

Extension

Which part of erector spinae attaches to the skull?

Longissimus

Which direction do the fibers of the transverse spinalis group go?

Diagonal

Which muscles of the transverse spinalis group attaches to the head?

Semispinalis Capitis

Movement of vertebral column lengthens the fibers of multifidis on the right side?

Rotation to the right

What movement of the vertebral column shortens the left splenus capitis?

Rotation to the left side

What muscles outline the spinus processes of C2, Transverse process of C1, and the superior nuchal line?

Suboccipitals

What movement lengthens the quadratus lumborum on the right side?

Lateral flexion to the left

Locate last rib, posterior iliac crest, and transverse process of of lumbar vertebra. What muscle do you have?

Quadratus lumborum

What muscle is involved in "washboard" abs?

Rectus abdominis

What muscle vertically attaches the ribs to the pubic crest?

Rectus abdominis

What is the primary muscle of respiration?

Diaphragm

Serratus posterior superior & inferior affect movement of the ____?

Ribs

What is part of the origin of spinalis?

Spinous process

What is the action of spinalis?

Extend the spine

What is the action of longissimus?

Laterally flex the vertebral column to the same side

What is part of the origin of iliocostalis?

Posterior surface of ribs 1-12

What is the action of iliocostalis?

Laterally flex the vertebral column to the same side

What is the action of the rotatores?

Rotate the vertebral column to the opposite side

What is the action of multifidi?

Extend the vertebral column

Rotatores span how many vertebrae?

1-2

Multifidis span how many vertebrae?

2-4

What is the origin of quadratus lumborum?

Posterior iliac crest

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