Bio 101

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• Bio 101
• Laboratory 8
• Pectoral Girdle and Upper Limb

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Objectives of Lab

• Become familiar with the bones and structures of
  the
• Pectoral girdle (clavicles, scapula)
• Upper limbs (humerus, radius, ulna, bones of
  hand)
• Know the definition of the major landmarks as
  they apply to the bones we cover today
• Be able to recognize the skeletal structures
  listed on your Laboratory Guide handout, Exercise
  8 and 9 (up to and including phalanges of hand
  for today)

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Skeletal Organization
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Landmarks of Bones

• Border Outer part or edge (lateral border of
  scapula)
• Epicondyle Projection situated above (proximal
  to) a condyle (lateral and medial humeral
  epicondyles)
• Tuberosity A rough, elevated surface, (deltoid
  tuberosity of humerus)

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Landmarks of Bones

• Hiatus Opening gap or cleft (sacral hiatus)
• Notch Deep indentation or narrow gap in the
  edge of a structure (radial notch)
• Tubercle Small, knoblike process (lesser
  tubercle of humerus)
• Tuberosity A rough, elevated surface, (deltoid
  tuberosity of humerus)

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Pectoral Girdle
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The Clavicles
From Martini, Fundamentals of Anatomy
Physiology, 6th ed., Benjamin Cummings, 2004
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Scapula
(Supra)scapular notch
Superior Border
Angle
Inferior Angle
Orientation
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Scapula
Figure from Saladin, Anatomy Physiology,
McGraw Hill, 2007
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Upper Limb
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Humerus
Orientation
Radial fossa
Anterior, right
Posterior, right
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Radius and Ulna
U shaped trochlear notch Ulna
Anterior, right
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The Hand
Proximal phalanx
Distal phalanx
Right hand, palmer surface
Right hand, dorsal surface
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The Carpals (Wrist)
Thumb is 1st metacarpal (anatomical position)
T
L
S
P
Right hand, palmer surface
T
C
T
H
Hook
Scared Lovers Try Positions That They Cannot
Handle
Scaphoid Lunate Triquetrum Pisiform Trapezium
Trapezoid Capitate Hamate
Lateral (Thumb side) -gt Medial
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Hook of the Hamate
Remember, this will appear on the palmar surface
of the hand (like the pisiform)
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What you should do in lab today

• Mariebs Laboratory Manual
• Pages 146 150.
• Handle the bones. Use your labeled figures as
  guides to the names of the bones and structures.
  Be sure to look at how these bones articulate in
  a skeleton.
• REVIEW THE SKULL AND VERTEBRAL COLUMN from last
  two labs!!
• Make no bones about it you should get tested on
  todays bones before you leave today! ?

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What you should be able to do after lab today

• Know the names of all the bones and structures we
  covered today (in Laboratory Guide Exercises 8
  and 9 up to and including phalanges of hand
  only)
• Be able to give the definition of the bone
  landmarks described for todays and last the lab
• You should be able to recognize and distinguish
  disarticulated bones based on their unique
  characteristics!!

DONT GET BEHIND!! Theres a lot to know.
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For next lab

• For Bones Pelvic Girdle and Lower Limb
• Read pp. 150 156 in Mariebs Lab Manual
• Suggestion Do Exercise Review Sheet 11, numbers
  1 through 6 for the bones of the pectoral girdle
  and upper limb youll do today.