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A&P I

Bone and Muscle

QuestionAnswer
1. What is the shaft of the bone called Diaphysis
2. Where is the endosteum found thin membrane that lines the medullary cavity.
3. What cells make bone Osteoblasts
4. What cells are responsible for bone erosion Osteoclasts
5. What do osteons do permit delivery of nutrients and removal of waste products from metabolically active, but imprisoned, bone cells
6. Where is Hematopoiesis carried out bone marrow (myeloid tissue)
7. What is the first step to healing a fracture fracture hematoma
8. At what age does bone loss exceed bone growth 35-40
9. When a bone is growing what causes the medullary cavity to enlarge Osteoclasts eat away the walls of the medullary cavity while osteoblasts from periosteum build new bone around the outside of the bone
10. What bones are part of the axial skeleton The axial skeleton is composed of the 74 bones that form the upright axis of the body and 6 tiny middle ear bones: the skull, the vertebral column, the thoracic cage
11. What bones are part of the appendicular skeleton The appendicular skeleton is composed of 126 bones that form the appendages to the axial skeleton: upper and lower limbs; the bones that hold the limbs to the trunk of the body.
12. How many bones are in the axial skeleton 80
13. How many bones are in the appendicular skeleton 126
14. What suture is between the occipital and parietal Lamboidal suture
15. What is mastoiditis Inflammation of the air cells within the mastoid portion of the temporal bone; usually caused by infection.
16. What are fontanels “soft spot” where ossification in the cranium is incomplete at birth;
17. What is the other name for the clavicle Collarbone
18. What imaginary plane to the baby’s head pass through during child birth Pelvic Outlet
19. What is the longest and heavest bone in the body Femur
20. What is kyphosis an exaggerated thoracic curvature that is directed posteriorly, producing a “hunchback” look.
21. What is scoliosis an abnormal lateral curvature that sometimes results during development when both the vertebral arch and body fail to form, or form incompletely, on one side of a vertebra.  scoliosis is the most common spinal curvature deformity.
22. How much of your body weight is skeletal muscle 40-50%
23. What is the covering of the individual muscle fibers called Endomysium
24. What is aponeurosis a thin flattened sheet of tendon (connective tissue)
25. What is a synergist Muscles that contract at the same time as the prime mover (Agonist). They facilitate or complement prime mover actions so that the prime mover produces a more effective movement.
26. What are all the muscles of the thigh Rectus femoris, vastus medialis, Sartorius, vastus lateralis, vastus imtermedius, gracilis, beceps femoris, adductor longus, adductor magnus, semintendinosus and semimembraneous
27. What do the muscles in the lower leg move ankle, foot and toes, flexes knee
28. What is the plasma membrane of the muscle fiber called sarcolemma
29. What is the smallest contractile unit of the muscle called sarcomere
30. What is irritability Excitability; the ability of a muscle to be stimulated
31. What is myosin Contractile protein found in the thick filaments of skeletal muscle myofilaments
32. What is the neurotransmitter that stimulates the skeletal muscles called Acetylcholine (ACh)
33. What is the nerve that stimulates muscles called Motor neuron
34. White fibers are also called what fast fibers
35. What is the sarcolemma plasma membrane of a striated muscle fiber
38. What is rigor mortis? And What causes it? “stiffness of death” Rigor mortis refers to the stiffness of skeletal muscles sometimes observed shortly after death. It is caused by the ceasing of muscle stimulation.
Created by: malrey3
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