Osteology of the Upper Limb Quiz
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Questions and Answers

What is the primary function of the clavicle?

  • To facilitate movement of the wrist
  • To protect the lungs
  • To produce red blood cells
  • To serve as a rigid support for the scapula (correct)

    • The clavicle has a medullary cavity similar to other long bones.

    False

    What are the two articulations of the clavicle?

    Sternum and acromion of the scapula

    The medial end of the clavicle is enlarged and _____ shaped.

    <p>triangular</p> Signup and view all the answers

    Match the following features of the scapula with their descriptions:

    <p>Costal surface = Concave anterior surface for muscle attachment Supraspinous fossa = Smaller fossa above the spine Infraspinous fossa = Larger fossa below the spine Spine of the scapula = Divides the posterior surface into two regions</p> Signup and view all the answers

    What part of the clavicle is most commonly fractured?

    <p>Junction between the middle and lateral thirds</p> Signup and view all the answers

    Fractures of the clavicle can happen during childbirth.

    <p>True</p> Signup and view all the answers

    What rib range does the scapula overlie?

    <p>2nd to 7th ribs</p> Signup and view all the answers

    The ________ surface of the scapula forms the large subscapular fossa.

    <p>costal</p> Signup and view all the answers

    Which bone is described as having a crescent shape?

    <p>Lunate</p> Signup and view all the answers

    The scaphoid bone is the largest of the carpal bones.

    <p>False</p> Signup and view all the answers

    What are the carpal bones that make up the proximal row?

    <p>Scaphoid, Lunate, Triquetral, Pisiform</p> Signup and view all the answers

    The ____ is a wedge-shaped bone that has a large hook on its palmar surface.

    <p>Hamate</p> Signup and view all the answers

    Match the following carpal bones with their descriptions:

    <p>Scaphoid = Large boat-shaped bone Capitate = Largest carpal bone with a rounded head Pisiform = Small round sesamoid bone Trapezium = Irregular four-sided bone with a prominent tubercle</p> Signup and view all the answers

    Which carpal bone is known for being small and irregular with four sides?

    <p>Trapezoid</p> Signup and view all the answers

    What structure separates the two tubercles of the humerus?

    <p>Intertubercular groove</p> Signup and view all the answers

    The condyles of the humerus include the capitulum and the medial epicondyle.

    <p>False</p> Signup and view all the answers

    What are the three surfaces of the humeral shaft?

    <p>Anteromedial, Anterolateral, Posterior</p> Signup and view all the answers

    What is the shape of the ulna's shaft?

    <p>Cylindrical</p> Signup and view all the answers

    The humerus articulates with the scapula to form the ______ joint.

    <p>glenohumeral</p> Signup and view all the answers

    The coronoid process of the ulna is located at the proximal end of the bone.

    <p>True</p> Signup and view all the answers

    Which fossa accommodates the coronoid process of the ulna during full flexion?

    <p>Coronoid fossa</p> Signup and view all the answers

    What are the two notches found at the proximal end of the ulna?

    <p>Trochlear and radial notch</p> Signup and view all the answers

    A direct blow to the arm can cause a fracture in the body of the humerus.

    <p>True</p> Signup and view all the answers

    Name one common fracture type of the surgical neck of the humerus.

    <p>Surgical neck fracture</p> Signup and view all the answers

    The ulna articulates with the humerus at the __________ joint.

    <p>elbow</p> Signup and view all the answers

    Match the following features of the humerus to their descriptions:

    <p>Capitulum = Rounded, convex surface Trochlea = Grooved surface like a pulley Deltoid tuberosity = Mark on the anterolateral surface Olecranon fossa = Accommodates the olecranon process of the ulna</p> Signup and view all the answers

    Match the following features of the ulna with their descriptions:

    <p>Trochlear notch = Articulates with humerus Radial notch = Articulates with radius Coronoid process = Forms inferior part of trochlear notch Styloid process = Projects from the head's medial side</p> Signup and view all the answers

    Which of the following is NOT a function of the distal end of the humerus?

    <p>Facilitates shoulder movement</p> Signup and view all the answers

    Which of the following statements about Colle’s fracture is correct?

    <p>It is the most common fracture of the forearm.</p> Signup and view all the answers

    The radial styloid process is shorter than that of the ulnar styloid process in Colle's fracture.

    <p>False</p> Signup and view all the answers

    When the arm is abducted, a fall on the point of the shoulder may cause a fracture of the ______ tubercle.

    <p>greater</p> Signup and view all the answers

    How many carpal bones are there in the wrist?

    <p>Eight</p> Signup and view all the answers

    The ulna’s head is connected to the shaft by the __________.

    <p>neck</p> Signup and view all the answers

    What type of movement does the proximal and distal radio-ulna joint allow?

    <p>Pronation and supination</p> Signup and view all the answers

    In the correct anatomical position, how are the hands positioned?

    <p>Palms facing forward</p> Signup and view all the answers

    The anatomical position requires the feet to be together.

    <p>True</p> Signup and view all the answers

    Where is the pain experienced by someone with gallbladder problems?

    <p>right upper quadrant</p> Signup and view all the answers

    The __ peritoneum surrounds organs and the __ peritoneum lines the __.

    <p>visceral; parietal; abdominopelvic cavity</p> Signup and view all the answers

    If a surgeon makes an incision just inferior to the diaphragm, which body cavity is opened?

    <p>Abdominopelvic cavity</p> Signup and view all the answers

    The right lumbar region is the site of pain for gallbladder problems.

    <p>False</p> Signup and view all the answers

    What body cavity is found superior to the diaphragm?

    <p>thoracic cavity</p> Signup and view all the answers

    Match the following regions with their descriptions:

    <p>Epigastric region = Upper central area of the abdomen Umbilical region = Center area of the abdomen Right lumbar region = Area to the right of the umbilical region Right upper quadrant = Area that includes the gallbladder</p> Signup and view all the answers

    Which section would divide the body down the midline between the eyes?

    <p>Sagittal section</p> Signup and view all the answers

    The membrane surrounding the lungs is called the __.

    <p>pleura</p> Signup and view all the answers

    Study Notes

    Osteology of the Upper Limb

    • The clavicle is a long bone without a medullary cavity.
    • It transmits forces from the upper limb to the axial skeleton.
    • The clavicle articulates with the sternum and scapula.
    • The weakest part of the clavicle is the junction between the middle and lateral one-thirds, and it’s the site for most fractures of the clavicle.
    • The scapula is a large, flat, triangular bone that lies between the 2nd and 7th ribs.
    • It gives attachment to many muscles and allows the arm to move freely.
    • The scapula has two surfaces: the costal surface and the posterior surface.
    • The humerus is the single bone of the arm, and is the longest bone in the upper limb.
    • The humerus articulates with the scapula, ulna, and radius.
    • The distal end of the humerus has two condyles: the capitulum and trochlea.
    • Most common fractures of the humerus occur at the surgical neck, greater tubercle, and body.

    The Bones of the Forearm

    • The ulna is a long bone in the forearm.
    • The ulna articulates with the humerus (elbow joint) and the radius (proximal and distal radio-ulna joints).
    • The ulna allows flexion and extension of the elbow, as well as a small amount of abduction and adduction.
    • The radius is a long bone in the forearm.
    • The radius forms the proximal and distal radio-ulna joints with the ulna and the radiocarpal (wrist) joint with the carpal bones.

    Fractures of Ulna and radius

    • Colle's fracture is a transverse fracture of the radius within the distal 2cm.
    • In Colle's fracture the radial styloid process is shorter than the ulnar styloid process.

    The Bones of the Hand

    • The bones of the hand are divided into three groups: carpals (wrist), metacarpals (palm), and phalanges (fingers).
    • There are eight carpal bones arranged in two rows of four. Proximal row: scaphoid, lunate, triquetral, and pisiform. Distal row: trapezium, trapezoid, capitate, and hamate.
    • The carpal bones articulate with the radius to form the wrist joint (radiocarpal joint) and with the metacarpals.
    • The metacarpals are five long bones that correspond to the digits.
    • The phalanges are the bones of the fingers.

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    Anatomy of Upper and Lower Limbs (ANAT 201) Lecture 2 PDF

    Description

    Test your knowledge on the anatomy of the upper limb, including the clavicle, scapula, and humerus. This quiz will cover bone structures, articulations, and common fracture sites. Perfect for students studying medical or biological sciences.

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