Exam #2 KRS 353

sterno-clavicular joint

Where is the only bony contact the shoulder girdle has with the axial skeleton?

ball and socket

The Sterno-clavicular Joint

Classification:

planar

\
Acromio-Clavicular Joint

__Classification__:  …., synovial, non-axial.

synovial

Acromio-Clavicular Joint

__Classification__:  planar, … , non-axial.

non-axial

Acromio-Clavicular Joint

__Classification__:  planar, synovial, ….

shoulder separation

A lateral blow to the AC joint will dislocate the clavicle superiorly to the acromion.

acromio-clavicular joint

A lateral blow to the … will dislocate the clavicle superiorly to the acromion.

shoulder dislocation

interclavicular ligament

what is this?

anterior sternoclavicular ligament

what is this?

superior angle

what is this?

concoid ligament

what is this?

trapezoid ligament

what is this?

coracoclavicular ligament

what is this?

superior acromioclavicular ligament

what is this?

acromion process

what is this?

coracoid process

what is this?

glenoid cavity

what is this?

lateral border

what is this?

inferior angle

what is this?

medial border

what is this?

subscapular fossa

what is this?

costoclavicular ligamet

what is this?

acromioclavicular joint

what is this?

clavicle

what is this?

superior border

what is this?

superior angle

what is this?

supraspinatus fossa

what is this?

spine of scapula

what is this?

medial border

what is this?

inferior angle

what is this?

lateral border

what is this?

infraspinatus fossa

what is this?

glenoid cavity

what is this?

acromion process

what is this?

protraction

Movements of the sterno-clavicular joint.


1. \

retraction

Movements of the sterno-clavicular joint.


2. \

elevation

Movements of the sterno-clavicular joint.


3. \

depression

Movements of the sterno-clavicular joint.


4. \

rotation

Movements of the sterno-clavicular joint.


5. \

greater tuberosity

supraspinatus

insertion:

Superior facet on …. of humerus. 

lesser tuberosity

subscapularis

insertion:

…. of humerus. 

greater tuberosity

infraspinatus

insertion:

Middle facet on … of humerus. 

greater tuberosity

teres minor

insertion:

Inferior facet on …. of humerus. 

superior

SLAP

S

labrum

SLAP

L

anterior

SLAP

A

posterior

SLAP

P

ulnar collateral ligament

what is this?

flexor carpi radialis

action:

flexion and abduction

flexor carpi ulnaris

action:

flexion and adduction

palmaris longus

action:

flexion

extensor carpi radialis longus

action:

extension and abduction

extensor carpi radialis brevis

action:

extension and abduction

extensor carpi ulnaris

action:

extension and adduction

flexor digitorum superficialis

action:

FLEXION of fingers at metacarpophalangeal & proximal interphalangeal joints

flexor digitorum profundus

action:

FLEXION of 4 fingers at metacarpophalangeal, proximal interphalangeal, & distal interphalangeal joints 

extensor digitorum

action:

EXTENSION of 2nd, 3rd, 4th, & 5th phalanges at metacarpophalangeal joints

extensor digiti minimi

action:

EXTENSION of little finger at metacarpophalangeal joint 

flexor pollicis longus

action:

FLEXION of thumb carpometacarpal, metacarpophalangeal, & interphalangeal joints

extensor pollicis longus

action:

EXTENSION of distal phalanx of thumb at carpo-metacarpal and interphalangeal joints.

extensor pollicis brevis

action:

extension of thumb at metacarpophalangeal joint

extensor incidis

action:

extension of index finger at metacarpophalangeal joint

abductor pollicis longus

action:

Abduction of thumb at carpometacarpal joint

opponens pollicis

action:

Draws 1st metacarpal to oppose thumb toward center of palm and rotates it medially.

abductor pollicis brevis

action:

Abducts thumb and helps oppose it.

flexor pollicis brevis

action:

Flexes thumb. 

adductor pollicis

action:

Adduction of thumb in the saggital plane.

opponens digiti minimi brevis

action:

Draws the little finger over the palmar surface.

abductor digiti minimi

action:

Abducts little (5th) finger.

flexor digiti minimi brevis

action:

Flexes proximal phalanx of little (5th) finger.

dorsal interosseous

action:

Abduct digits from axial line and act to hyper- extend metacarpophalangeal joints and extend interphalangeal joints.

palmar interosseous

action:

Adduct digits toward axial line and assist lumbricals in flexing metacarpo-phalangeal joints and flex interphalangeal joints.

lumbricals

action:

* Flex the fingers at the metacarpophalangeal (MCP) joints
* Extend them at the interphalangeal (IP) joints

carpal arch

__The Carpal Tunnel__

Allows structures to be protected as they enter the palm.

What are these structures?

carpal arch

The carpal bones form an arch.

Concave anteriorly, due to the tension generated by the flexor retinaculum.

Produces the “carpal tunnel”.

carpal tunnel

Nerves, blood vessels and tendons are protected by the …. as they enter the palm.

plane

Carpo-metacarpal Joints

classification:

* …, non-axial, non-planar.

non-axial

Carpo-metacarpal Joints

classification:

* plane, …, non-planar.

non-planar

Carpo-metacarpal Joints

classification:

* plane, non-axial, ….

abduction

scapula moves laterally away from spinal column

adduction

scapula moves medially toward spinal column

downward rotation

returning inferior angle inferomedially toward spinal column & glenoid fossa to normal position

upward rotation

turning glenoid fossa upward & moving inferior angle superolaterally away from spinal column to assist in raising arm

depression

downward or inferior movement of scapula, as in returning to normal position

elevation

upward or superior movement of scapula, as in shrugging shoulders

abduction

Glenohumeral joint

what is this?

adduction

Glenohumeral joint

what is this?

flexion

Glenohumeral joint

what is this?

extension

Glenohumeral joint

what is this?

horizontal abduction

Glenohumeral joint

what is this?

horizontal adduction

Glenohumeral joint

what is this?

flexion

elbow movements


1. biceps brachii
2. brachialis
3. brachioradialis

flexion

elbow movements

ex bicep curls

biceps brachii

elbow flexion

agonists


1. \

brachialis

elbow flexion

agonists


2. \

brachioradialis

elbow flexion

agonists


3. \

extension

elbow movements


1. triceps brachii
2. anconeus

extension

elbow movements

ex push up

triceps brachii

elbow extension

agonsits


1. \

anconeus

elbow extension

agonsits


2. \