Lab 4 Flashcards
Type of bone the humerus is
Long bone
What part of scapula does head of humerus articulate with
Glenoid cavity
Anatomical name for shoulder joint
Glenohumeral Joint
Classification of glenohumeral joint
Diarthrotic synovial triaxial ball & socket
Rotator cuff muscles that insert at greater tubercle
Supraspinatus, Infraspinatus, teres minor
Lesser tubercle rotator cuff muscle
Subscapularis
What does Biceps Brachii muscle articulate with
Sulcus
Where does deltoid muscle insert
Deltoid tuberosity
Origin of the hand flexor muscles in forearm
Medial Epicondyle
Origin of hand extensor muscles in forearm
Lateral Epicondyle
What does the Trochlea articulate with
Ulna
What does the Capitulum articulate with
Radius
Where does triceps brachii muscle insert
Olecrannon process of Ulna
What does the Trochlea notch articulate with
Trochlea of humerus
What does Ulnar notch of radius articulate with
head of ulna
What does Radial notch of Ulna articulate with
head of radius
Is radius larger at proximal or distal end
Distal (at wrist joint)
What bones make up the carpus (wrist)
Carpal bones
What bones make up the palm (metacarpus)
Metacarpal bones
What bones make up the phalanges (digits)
Phalanx bones
3 out the 8 bones of Carpals
Trapezium, Scaphoid, Lunate
What type of bone are the carpals
short bones
Fibrous cartilage lip in glenohumeral socket
Glenoid labrum
3 types of Bursae in shoulder
Subcoracoid Bursa, Subacromial Bursa, Subdeltoid bursa
The 3 synovial joints the elbow consists of
Humeroulnar joint, humeroradial joint, Proximal radioulnar joint
Humeroulnar Joint
Trochlea of humerus fits into Trochlear notch of Ulna
Movements & type of joint - humeroulnar joint
flexion, extension (hinge joint)
Movements & type - humeroradial joint
flexion, extension (hinge joint)
The 3 joints that are Radioulnar joints
Proximal radioulnar, middle radioulnar joint & distal radioulnar joint
What type of joint is the proximal radioulnar joint
Diarthrotic synovial monaxial pivot joint
What type of joint is the middle radioulnar joint
Diarthrotic synovial monomial plane joint
Sheet of fibres b/w radius & ulna
Interosseous membrane
Joints of the wrist
Radioulnar joint, radoiocarpal joint, intercarpal joint
What type of joint is the radoiocarpal joint
condyle joint (flex/ex, add/abd, circum)
What type of joint is the intercarpal joint
plane joint (sliding and slight twisting)
Rotator Cuff Muscles (anterior)
Subscapularis muscle (medially rotates arm at shoulder)
Rotator Cuff Muscles (posterior)
Supraspinatus, Infraspinatus, Teres Minor
Supraspinatus muscle
assists in abduction of arm at shoulder
Infraspinatus muscle
laterally rotates arm at shoulder
Teres Minor Muscle
laterally rotates arm at shoulder (scapula to greater tubercle)
What muscles help protonate the hand
Protonator teres and protonator quadratus muscle
What muscle supinates the hand
Supinator muscle
Where do the common extensors of the wrist orginate
Lateral epicondyle of humerus
Where do the common flexors of the wrist orginate
Medial epicondyle of humerus
Thenar eminence
Act on the thumb, raised part of palm
Hypothenar eminence
act on little finger
What movements does the Biceps Brachii do?
Flexion of arm at shoulder joint, flexion of forearm at elbow joint, supination of hand
What movements does the Brachialis muscle do?
Flexion of forearm at elbow joint
