Bio 2050 - Anatomy and Physiology » Fall 2021 » Lec Quiz 3 Bones

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Question #1
Small channels extending through the bone matrix to connect lacunae are:
A.   canaliculi
B.   lacunae
C.   central canal
D.   lamellae
Question #2
Spongy bone tissue:
A.   doesn't contain concentric lamellae
B.   is very dense
C.   has many spaces and lacks osteocytes
D.   contains concentric lamellae
Question #3
Which of the following statements about bone remodeling and repair is correct?
A.   The rate of bone remodeling increases in the elderly.
B.   Exposure of a bone to increased stress can lead to bone remodeling.
C.   Bone remodeling involves removal of old bone by osteoblasts.
D.   As a long bone increases in diameter, the size of the marrow cavity decreases.
Question #4
If the collagen and minerals are removed from a bone, what happens to the bone?
A.   it becomes soft, rubbery and fragile
B.   no noticeable differences occur with the bone
C.   it breaks apart into thousands of small pieces
D.   it becomes stiff and brittle
Question #5
_____________ is the process of dissolving bone and returning its minerals to the bloodstream.
A.   Crystallization
B.   Decomposition 
C.   Mineralization
D.   Resorption
Question #6
The main storage area for adipose(fat) tissue in a long bone is:
A.   periosteum
B.   lacuna
C.   diaphysis
D.   spongy bone tissue
Question #7
Wolff's law of bone explains the effect of
A.   Mechanical stress on bone remodeling
B.   Temperature on bone growth
C.   Age on bone thickening
D.   Different diets on bone elongation
Question #8
The epiphyseal plate of a growing bone is actually a temporary joint called a
A.   synostosis.
B.   syndesmosis.
C.   synchondrosis.
D.   symphysis.
Question #9
The cell type that is responsible for maintaining bone once it has been formed is the:
A.   osteocyte
B.   osteoblast
C.   chondrocyte
D.   osteoclast
Question #10
Which of the following is NOT an effect of parathyroid hormone (PTH)?
A.   increased Ca2+ uptake by the small intestine
B.   decreased Ca2+ loss by the kidneys
C.   increases the reabsorption of phosphate from the proximal tubule of the kidney
D.   increased Ca2+ reabsorption by the kidneys

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