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

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