P1 ANATOMY Flashcards by Fatma Mutar

Most of the motor and
sensory nerves of the
upper limb are derived
from the

brachial plexus

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name the joint and its type

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name the joint and its type

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name the ligament

coracoclavicular ligament

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name the ligament

Coracoacromial
ligament

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name the ligament

Costoclavicular
ligament

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showing the interior surface of the clavicle
Q: Identify the ligament seen in this impression

costoclavicular ligament

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showing lateral view of the scapula
Q: name the tubercle & what muscle originates from it

Infraglenoid tubercle
origin of long head of triceps

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showing lateral view of the scapula
Q: name the tubercle & what muscle originates from it

-Supraglenoid tubercle
- origin of long head of biceps

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what is the shoulder girdle

scapula + clavicle

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what is the importance of the shoulder girdle

connects the upper limb to the axial skeleton

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type of GLENOHUMERAL joint

ball & socket joint , synovial joint

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fibrocartilage rim seen in glenoid cavity known as

glenoid labrum

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Importance of glenoid labrum

Stability of the joint as it widens & deepens glenoid cavity

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Fibrous capsule will be Medially attached to the

margin of glenoid cavity outside glenoid labrum.

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Fibrous capsule will be laterally attached to the

Anatomical neck of the humerus
also medial part of surgical neck

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Synovial membrane lines the capsule and all
intraarticular structures of joint except

articular cartilage.

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name the ligament pointed by the arrow

Coracohumeral ligament

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name the ligament pointed by the arrow

Superior transverse scapular ligament

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name the ligament pointed by the arrow

Transverse humeral ligament

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the transverse humeral ligament bridges over which muscle

long head of biceps

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name the ligament pointed by the arrow

Coracoacromial ligament

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Importance of Coracoacromial
ligament

Prevents superior displacement of
humeral head.

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name the part of the Coracoclavicular ligament pointed by the arrow

Trapezoid part

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name the part of the Coracoclavicular ligament pointed by the arrow

Conoid part

Opened shoulder joint , identify the intracapsular structure pointed by the arrow

long head of biceps brachii

mention the bursae’s found in the GLENOHUMERAL joint

- subacromial / subdeltoid - sub-scapular

bursae functions as

Cushion between tendons & joint structures

showing the Ant. view of glenohumeral joint Identify which bursae is pointed at by the arrow

subacromial / subdeltoid

showing the Ant. view of glenohumeral joint Identify which bursae is pointed at by the arrow

- sub-scapular

mention the 4 muscles that forms the rotator cuff

1- supra-spinatus 2-infra-spinatus 3- teres minor 4- subscapularis

showing Post. View of the joint Identify the space marked by the blue box

Quadrangular space

what is the inferior border of of the Quadrangular space

teres major muscle

what is the lateral border of of the Quadrangular space

Surgical neck of humerus

what is the medial border of of the Quadrangular space

long head of triceps

what is the superior border of of the Quadrangular space

teres minor

what are the contents of the

axillary / circumflex nerve post. Circumflex humeral Art.

most common site of shoulder joint dislocation

Inferiorly

what nerve is injured incase of inferior dislocation of shoulder

axillary nerve

what Deformity is seen incase of axillary nerve injury

flat shoulder deformity

Mention the 4 muscles that causes flexion

-Pectoralis major -biceps brachii -deltoid - coracobrachialis

which fibers of the deltoid are responsible for flexion

Anterior fibers

Mention the 4 muscles that causes extension

- Latissimus dorsi -teres major - triceps - Deltoid

which fibers of the deltoid are responsible for extension

Posterior fibers

muscle thats responsible for 0-15 degree abduction

supraspinatus

muscle thats responsible for 15-90 degree abduction

middle fibers of deltoid

muscles responsible for abduction beyond 90 degree

serratus anterior & trapezius.

mention the 5 muscles that are responsible for adduction

- Pectoralis major - latissimus dorsi - teres major - teres minor - subscapularis.

mention the 3 muscles that are responsible for external or lateral rotation

-Infraspinatus - teres minor - posterior fibres of deltoid

mention the 5 muscles that are responsible for internal or medial rotation

- Subscapularis - pectoralis major - teres major - latissimus dorsi - deltoid anterior fibers

Arterial supply to shoulder joint

Ant. & Post. Circumflex humeral arteries suprascapular artery

innervation to the shoulder joint

Suprascapular, axillary and lateral pectoral nerves.

what Ligamentous factor is responsible for 2nd socket that prevents upwards dislocation

Coraco-acromial arch

2 origins of PECTORALIS MAJOR MUSCLE

1- clavicle 2- sternocostal

insertion of PECTORALIS MAJOR MUSCLE

into the lateral lip of bicipital groove

nerve supply to PECTORALIS MAJOR MUSCLE

medial & lateral pectoral nerves

origin of pectoralis minor

3rd , 4th & 5th ribs

insertion of pectoralis minor

coracoid process of the scapula.

innervation of perctoralis minor

medial pectoral nerves.

origin of subclavius muscle

1st costochondral junction

insertion of subclavius muscle

subclavius groove

innervation of subcalvius muscle

subclavius nerve

origin of SERRATUS ANTERIOR MUSCLE

eight digits from the outer surface of the upper 8 ribs.

insertion of serratus Ant. muscle

anterior surface of the medial border and inferior angle of scapula

innervation of serratus Ant. muscle

long thoracic nerve

innervation of trapezius muscle

spinal accessory nerve (motor) and C3,4 nerves

origin of trapezius muscle

external occipital protuberance and superior nuchal line& ligamentum nuchae, spine of C7 vertebra & all thoracic spines & supraspinous ligaments.

insertion of trapezius muscle

posterior border of lateral 1/3 of clavicle, medial border of acromion & upper border of spine of crest of scapula

origin of LATISSIMUS DORSI

spines of the dorsi muscle lower six thoracic spines, thoracolumber fascia, outer lip of the posterior part of iliac crest, lower four ribs and dorsal aspect of inferior angle of scapula.

insertion of LATISSIMUS DORSI

floor of bicipital groove

innervation of LATISSIMUS DORSI

thoraco-dorsal nerve

Identify the muscle & its origin

Levator scapulae muscle originates from transverse processes of upper 4 cervical vertebrae.

insertion of levator scapulae muscle

Dorsal aspect of medial border of the scapula from the superior angle to root of spine

innervation of levator scapulae muscle

Dorsal scapular nerve (C5)

Identify the muscle & its origin

Rhomboideus Minor Muscle originates fromLower part of ligamentum nuchae and spines of C7 & T1.

insertion of Rhomboideus Minor

dorsal aspect of medial border of scapula opposite root of spine

Identify the muscle & its origin

Rhomboideus Major Muscle originates from spines of T2-T5 vertebrae

insertion of Rhomboideus major

dorsal aspect of the medial border of scapula from the spine to the inferior angle.

innervation of both Rhomboideus

Dorsal scapular nerve

identify the muscle & its insertion

teres major inserted into the medial lip of the bicipital groove

Innervation of teres major

Lower Subscapular nerve

identify the muscle & its insertion

teres minor inserted into lower facet of greater tuberosity of humerus

innervation of teres minor

axillary nerve

identify the muscle & its innervation

Subscapularis Muscle innervated by Upper & Lower Subscapular nerves

identify the muscle & its innervation

Supraspinatus Muscle innervated by Suprascapular nerve

identify the muscle & its insertion

Infraspinatus Muscle inserted in middle facet of greater tuberosity of humerus.

P1 ANATOMY Flashcards

Movements of shoulder joint (86 cards)