At what rate does bone marrow produce red blood cells - Answers -2 mill per min
What makes up the skeletal system? - Answers -The bones and joints together with
supporting connective tissue
What are the 5 functions of bones? - Answers -Form a sturdy framework
Protect delicate structures
Work as levers with attached muscles
Store calcium salts
Produce blood cells
When does the process of ossification begin? - Answers -During the second and third
months of embryonic life
When do osteoblasts become active? - Answers -During ossification
Do osteocytes produce new bone tissue? - Answers -No
When bone has to be remodeled or repaired in life where does the osteoblasts develop
from? - Answers -Stem cells in the endosteum and periosteum
Where do osteoclasts develop from? - Answers -A white blood cell (monocytes)
Both the formation and resorption of bone tissue are regulated by what? - Answers -
Hormones
What compounds are deposited in the intercellular matrix of the embryonic skeleton to
harden it? - Answers -Calcium and collagen
What is the study of a skeleton? - Answers -Osteology
What are the centers for secondary of a long bone? - Answers -Epiphyseal plates
, What are some functions of bone marking? - Answers -To form joints or serve as points
for muscle attachments and allow the passage of nerves and blood vessels
What do the frontal sinuses communicate with? - Answers -Nasal cavities
What are the sinuses and others near the nose described as? - Answers -Paranasal
sinuses
Epiphysis - Answers -The end of a long bone
Orthopedics - Answers -Branch of surgery concerned with the skeletal system
Sphenoid bone - Answers -A bone that articulated with the parietal and temporal bones
and forms the posterior inferior part of the cranium
Spongy bone - Answers -The type of bone tissue found at the end of a long bone
Medullary cavity - Answers -The hollow portion of a long bone containing yellow marrow
Central canal - Answers -The longitudinal canal in the middle of each osteon
What makes up the interior of the epiphysis of long bones? - Answers -Spongy bone
What makes up the center of a short bone? - Answers -Spongy bone
What makes up the shaft of a long bone? - Answers -Compact bone
A mesh work of small, bony plates are known as what? - Answers -Spongy bone
Where is the mastoid process located? - Answers -Of the temporal bone projects
downward immediately behind the outer ear
A very hard bone with few spaces - Answers -Compact bone
What is a joint? - Answers -The point where 2 bones meet
Extension - Answers -A movement that increases the angle between two bones
Abduction - Answers -Movement away from the midline of the body
Rotation - Answers -Motion around the central axis
Flexion - Answers -A bending motion that decreases the angle between two joints
Adduction - Answers -Movement toward the midline of the body
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