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week 5 physio

QuestionAnswer
As the activity of osteoblasts increases, the: amount of calcium in bone increases. level of calcium in the blood decreases.
The ulna articulates proximally with the: humerus
Young children’s bones have a greater risk of fracturing because of incompletely ossified bone. false
After the age of 50, the density of bone:
In bone growth, the medullary cavity is enlarged because of the activity of: osteoclasts
The cells responsible for active erosion of bone minerals are called: osteoclasts
Before childbirth, the symphysis pubis softens. true
One similarity between the structures of the foot and hand is the equivalent degrees of movement of both the thumb and the big toe. false
Which structures are unique to the fetal skull and provide additional space for molding the head shape as the baby passes through the birth canal? fontanels
The following are functions of bone except for support, protection, mineral storage, and hematopoiesis.
An age-related skeletal disease that is characterized by loss of bone mineral density and increased bone fragility is osteoporosis
An open fracture is also known as a compound fracture. true
The humerus articulates proximally with the clavicle. false
Calcification of the organic bone matrix occurs when complex calcium salts are deposited in the matrix.
Which of the following is not a characteristic of the epiphyses? Cylindrical in shape
In bone formation, the cells that produce the organic matrix are the: ostyoblast
A condition that is caused by an abnormally increased roundness in the thoracic curvature is kyphosis
The humerus articulates proximally with the scapula
Normally, bone loss will begin to exceed bone gain between the ages of _____ years. 35-40
During childbirth, a baby passes through an imaginary plane called the: pelvic outlet
When the knee is flexed, the patella can be easily distinguished. false
The human hand has greater dexterity than the forepaw of any animal because of the freely movable joint of the: thumb
Which of the following is not dependent on the proper amount of calcium ions in the blood? Blood clotting , Transmission of nerve impulses, and Contraction of cardiac muscle
The primary ossification center of a long bone is located: in the diaphysis.
The cell organelles that synthesize organic matrix substances in bone formation are: endoplasmic reticulum and Golgi apparatus.
In the epiphyseal plate, the zone of hypertrophy is in the _____ layer. 3
Which of the following is not a characteristic of the diaphysis? provides a bulbous shape for attachment of muscle
Blood calcium levels involve secretion of which two hormones? parathyroid and calcitonin
Bones act as a reservoir for which of the following minerals? calcium and phosphorus
If the cribriform plate is damaged, there is a chance of: infectious material passing from the nose to the brain
Created by: nursexandi
 

 



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