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49 Cards in this Set

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  • Back
What muscles make up the Rotator Cuff?
SItS:
SUPRASPINATUS
INFRASPINATUS
TERES MINOR
SUBSCAPULARIS
What does the SUPRASPINATOUS do?
Initiates and assists deltoid in the first 15 degrees of Abduction of the arm.
What Innervates SUPRASPINATOUS?
SUPRASCAPULAR NERVE
_INFRASPINATOUS_
Origin: INFRASPINOUS FOSSA
Insert: Middle facet of greater tubercle of HUMERUS
Action: Lateral Rotation of HUMERUS
Innervation: Suprascapular
_TERES MINOR_
Origin: Lateral border of SCAPULA
Insert: Inferior facet of greater tuberosity of HUMERUS
Action: Lateral arm rotation
Innervate: AXILLARY NERVE
Where does SUBSCAPULARIS originate?
SUBSCAPULAR FOSSA
Where does SUBSCAPULARIS Insert?
Lesser Tubercle of HUMERUS
What is the action of SUBSCAPULARIS?
Medially rotates and adducts arm.
What Innervates SUPSCAPULARIS?
Upper and Lower SUBSCAPULAR NERVE
Where does TERES MAJOR Originate?
Dorsal surface of inferior angle of SCAPULA
Where does TERES MAJOR Insert?
Medial lip of the intertubercular sulcus.
What is the action of TERES MAJOR?
Adducts and medially rotates arm. Extends arm from flexed position.
What innervates TERES MAJOR?
Lower SUBSCAPULAR NERVE
What is in the QUADRANGULAR SPACE?
AXILLARY NERVE
POSTERIOR CIRCUMFLEX HUMERAL ARTERY
What is in the HUMERAL TRIANGULAR SPACE?
PROFUNDA BRACHII ARTERY and VEIN
RADIAL NERVE
What is in the SCAPULAR TRIANGULAR SPACE?
CIRCUMFLEX SCAPULAR ARTERY and VEIN
What is the Origin of the DELTOID?
Anterior fibers: CLAVICLE
Intermediate fibers: ACROMION Process
Posterior fibers: Spine of SCAPULA
What is the Insertion of the DELTOID?
DELTOID Tuberosity
What is the Action of the DELTOID?
Anterior fibers: Flexion of arm
Intermediate fibers: Abduct arm from 15 - 90 degrees
Posterior fibers: Extension of arm
What Innervates the DELTOID?
AXILLARY NERVE
What is the Origin of the SUBSCAPULARIS?
SUBSCAPULAR FOSSA
What is the Insertion of the SUBSCAPULARIS?
Lesser Tubercle
What is the Action of the SUBSCAPULARIS?
Medially rotates and adducts arm
What Innervates SUBSCAPULARIS?
Upper and Lower SUBSCAPULAR NERVE
What is significant about the Surgical Neck of the HUMERUS?
It is the most frequent fracture site of proximal end of HUMERUS.
Fracture may cause injury to AXILLARY NERVE & POSTERIOR CIRCUMFLEX HUMERAL VEIN/ARTERY.
What are the names of the INTERMUSCULAR SEPTA?
Medial & Lateral
What muscles are responsible for Flexion of arm?
BICEPS BRACHII
CORACOBRACHIALIS
BRACHIALIS
What muscles are responsible for Extension of the arm?
TRICEPS BRACHII
ANCONEUS
What are the Origins of the BICEPS BRACHII?
Long head: Supraglenoid tubercle of SCAPULA
Short head: CORACOID PROCESS
Where does the BICEPS BRACHII Insert?
Postero-medial aspect of the RADIAL TUBEROSITY of the RADIUS.
What is the Origin of CORACOBRACHIALIS?
CORACOID PORCESS of SCAPULA
Where does CORACOBRACHIALIS Insert?
Anterior aspect of the superior third of shaft of HUMERUS
What is the Origin of BRACHIALIS?
Anterior aspect of lower half of the shaft of humerus
Lateral & Medial intermuscular septa
Where does BRACHIALIS INsert?
Anterior aspect of the CORONOID PROCESS
TUBERSOSITY of ULNA
What Innervates BICEPS BRACHII?
MUSCULOCUTANEOUS
What Innervates CORACOBRACHIALIS?
MUSCULOCUTANEOUS
What Innervates BRACHIALIS
MUSCULOCUTANEOUS and RADIAL NERVE
What Innervates the Extensors of the ARM?
The RADIAL NERVE innervates both TRICEPS BRACHII and ANCONEUS Muscles.
What are the branches of the BRACHIAL ARTERY?
PROFUNDA BRACHII
NUTRIENT HUMERAL
SUPERIOR ULNAR COLLATERAL
INFERIOR ULNAR COLLATERAL
Why can you ligate the BRACHIAL ARTERY without producing tissue damage?
Anastamosis via INFERIOR and SUPERIOR ULNAR COLLATERAL ARTERIES.
Where is the stethoscope placed to read Arterial blood pressure?
Medial to Biceps tendon in the CUBITAL FOSSA.
What are the Veins of the arm?
BRACHIAL
CEPHALIC
BASILIC
MEDIAN CUBITAL
Which vein is used in Venepuncture?
MEDIAN CUBITAL which serves as communication between CEPHALIC and BASILIC.
What is the result of injury to the MEDIAN NERVE?
Loss of pronation of forearm & flexion of wrist and digist
What results from injury to the ULNAR NERVE?
Impaired flexion of wrist
Impaired movement of thumb, ring and little fingers
What results from injury to the MUSCULOCUTANEOUS NERVE?
Paralysis of the flexors of the forearm -- weakness in flexion and supination of forearm.
Loss of sensation on lateral side of forearm.
What is the result of Injury to RADIAL NERVE?
Proximal to origin of TRICEPS:
Paralysis of TRICEPS, BRACHIORADIALIS, Supinator and Extensors of wrist and digits

In RADIAL GROOVE:
Wrist drop -- inability to extend wrist and digits
What deliminates the CUBITAL FOSSA
Superior: line between two EPICONDYLES
Medial: PRONATOR TERES
Lateral: BRACHIORADIALIS
Floor: BRACHIALIS and SUPINATOR
Roof: Deep Fascia & Bicipital aponeurosis
What is contained in the CUBITAL FOSSA?
Biceps tendon
BRACHIAL ARTERY
MEDIAN NERVE
BRACHIAL VEIN
Branches of RADIAL NERVE