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BIO 240 MODULE 1 EXAM ACTUAL EXAM LATEST UPDATE 2024 COMPLETE QUESTION AND CORRECT VERIFIED ANSWERS FROM VERIFIED SOURCES ALREADY GRADED A+$17.99
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What are the two types of bone? - ANSWER-compact and spongy
Compact bone - ANSWER-(dense/cortical bone) rigid connective bone tissue that appears white, smooth,
and solid; 80% of total bone mass
Spongy bone - ANSWER-(cancellous/trabecular bone) located internal to compact bone and appears
porous; 20% of total bone mass
cartilage - ANSWER-semirigid connective tissue that is more flexible than bone
,What are the the types of cartilage? - ANSWER-hyaline, elastic, fibrocartilage
Hyaline Cartliage - ANSWER-attaches ribs to sternum (costal cartilage), covers bone edges (articular
cartilage), withing growth plates (epiphyseal plates), and provides model for formation of fetal skeleton
Fibrocartilage - ANSWER-A weight-bearing cartilage that withstands compression; forms the
intervertebral discs, the pubic symphysis & cartilage pads of the knee joints (menisci)
Ligaments - ANSWER-dense regular connective tissue anchors bone to bone
Tendons - ANSWER-dense regular connective tissue anchors muscle to bone
What are the components of our skeletal system? - ANSWER-skeletal bones, cartilage, ligaments,
tendons, and other connective tissue
What are the basic functions of bones? - ANSWER-support and protection, levers of movement,
hematopoiesis, and storage of mineral and energy reserves.
Give an example of bones providing protection and support. - ANSWER-rib cage shielding heart and
lungs, pelvis encloses urinary and reproductive organs as well as the end of the gastrointestinal tract
Give an example of bones providing a lever for movement. - ANSWER-bones are the attachment sites for
skeletal muscles. When the muscle contracts it will pull on the skeleton which functions as a system of
levers.
, Hematopoiesis - ANSWER-blood cell formation; occurs in red bone marrow, which contain stem cells
How do bones serve as mineral and energy reserves? - ANSWER-bones store most calcium and
phosphate; Calcium is important for muscle contraction and blood clotting; Phosphate is used in ATP and
phospholipids
When needed, bone connective tissue is broken down and minerals are released into blood
Energy from lipids can be stored in yellow bone marrow
What are the four classes of bones? - ANSWER-long, short, flat, irregular
Long bones - ANSWER-long than they are wide; most common
short bones - ANSWER-length nearly equal to width; carpals and tarsals
Flat bones - ANSWER-flat, thin surface to provide for muscle attachment and protection of underlying soft
tissue; roof of skull, scapulae, sternum, ribs
Irregular bones - ANSWER-don't fit into other categories; vertebrae, ossa coxae
diaphysis of a long bone - ANSWER-the shaft of a long bone; composed of compact bone with spongy
bone interior
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