upper limb- bone Flashcards
What is the primary function of the upper limb in humans?
An organ for grasping and manipulating.
What bones make up the upper limb?
- Clavicle
- Scapula
- Humerus
- Radius
- Ulna
- Carpal bones
- Metacarpals
- Phalanges
What is the role of the pectoral girdle?
Attaches the upper limb to the trunk.
What is the significance of the clavicle?
Serves as a strut between the scapula and the sternum.
What are the bony landmarks of the clavicle?
- Acromial end
- Sternal end
What is the only point of articulation with the axial skeleton?
Sternoclavicular joint.
What movements does the sternoclavicular joint allow?
Movement of the clavicle and scapula in the sagittal and coronal planes.
What is circumduction?
Combination of sagittal and frontal movements.
What shape is the scapula?
Flat and triangular.
What are the bony landmarks of the scapula?
- Acromion process
- Coracoid process
- Scapular spine
- Superior border
- Medial border
- Lateral border
- Infraspinous fossa
- Subscapular fossa
- Glenoid fossa
- Inferior angle
What is the shoulder joint also known as?
Glenohumeral joint.
What type of joint is the shoulder joint?
Ball and socket joint.
What are the bony landmarks of the humerus?
- Head of humerus
- Anatomical neck
- Surgical neck
- Greater tubercle
- Lesser tubercle
- Lateral epicondyle
- Medial epicondyle
- Olecranon fossa
- Bicipital groove
What type of joint is the elbow joint?
Hinge joint.
What does the proximal radioulnar joint connect?
Proximal ends of the radius and ulna.
What are the bony landmarks of the radius?
- Radial tuberosity
- Styloid process of radius
What are the bony landmarks of the ulna?
- Olecranon process
- Styloid process of ulna
The radius extends from the ____ side of the elbow to the ____ side of the wrist.
Lateral, thumb
The ulna lies ______ and parallel to the radius.
Medially
What movements are associated with the elbow joint?
- Flexion
- Extension
What movements are associated with the proximal radioulnar joint?
- Pronation
- Supination
