Presentation on theme: "Chap 7 – Part II (Continuation) The Vertebral Column, Thoracic Cage & Pectoral Girdle Learning Objectives *continued from last lesson."— Presentation transcript:
Chap 7 – Part II (Continuation) The Vertebral Column, Thoracic Cage & Pectoral Girdle Learning Objectives *continued from last lesson
Can you Guess What’s Wrong? (Problems with the Spine) What’s the condition causing the spine to twist? What’s this condition? And, this condition?
Exploring the Spine, page 135 Instructions: Number & count how many vertebrae in each region. How many total bones in the spine?
General Vertebral Bone Markings, pg 136 a.Spinous process b.Vertebral foramen c.Pedicle d.Transverse process e.Body Instructions: Match the bone marking with its anatomical name. 1 2 3 4 (opening) 5
Cervical Vertebrae, pg 137 All vertebrae have a common structural pattern (as seen in previous slide). Vertebrae of each region also have certain characteristics. C1 (atlas), for example, has no body or spinous process C2 (axis) has a typical body & spine but also features a knoblike tooth called a “dens” dens
Cervical Vertebrae continued C3 – C7 have the following distinguishable characteristics (fill in your notes as I discuss): 1. The_____ is oval – wider from side to side. 2. Except for C7, the ________ ________ is short and split at the top. 3. Vertebral _____ is large and __________. 4. Each transverse process contains a _________ __________ through which the vertebral arteries pass to service the brain.
Thoracic Vertebrae, pg 138 All ________ with the ribs and have 5 other characteristics: 1. Body is heart-shaped and bears two small ______ (small joints) 2. Vertebral _______ is circular. 3. Spinous _______ is long & points sharply downward. 4. With the exception of T11 – T12, the transverse _______ have facets.’ 5. Sup. & inf. articular facets lie in the frontal plane (preventing ________ & extension but allows for rotation).
Lumbar Vertebrae, pg 139-140 Sturdy & larger with 4 other notable characteristics: 1. The ______ and laminae are shorter & thicker than other vertebrae. 2. The spinous ________ are short, flat, and hatchet-shaped. 3. The ______ ________ is triangular. 4.The _____ orientation helps to lock them together.
Sacrum, pg 141 Forms ___________ wall of the pelvis Formed by ___ fused vertebrae Coccyx Also known as ______________ Consists of __ fused vertebrae
Bones of the Thoracic Cage, pg 142 sternum manubrium 7 true ribs False ribs Floating ribs (11-12) Costal cartilage Xiphoid process NOTE: You may want to label pg 142 in textbook also matching it up with this slide.
Bones of the Pectoral (Shoulder) Consists of: 1. _______ (anteriorly) 2. ________ (posteriorly)
Pectoral Bones, pg 145 Label your practice diagram (all parts).
Scapula, pg 144 Label ONLY red parts.
Practice Review Instructions: Complete questions on pages 133 – 134, 135, 139, 143 – 144 in your textbook, “The Anatomy Assignment”.