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.   lamellae
D.   central canal
Question #2
Spongy bone tissue:
A.   doesn't contain concentric lamellae
B.   contains concentric lamellae
C.   has many spaces and lacks osteocytes
D.   is very dense
Question #3
Which of the following statements about bone remodeling and repair is correct?
A.   Exposure of a bone to increased stress can lead to bone remodeling.
B.   As a long bone increases in diameter, the size of the marrow cavity decreases.
C.   Bone remodeling involves removal of old bone by osteoblasts.
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.   no noticeable differences occur with the bone
D.   it becomes soft, rubbery and fragile
Question #5
_____________ is the process of dissolving bone and returning its minerals to the bloodstream.
A.   Crystallization
B.   Resorption
C.   Decomposition 
D.   Mineralization
Question #6
The main storage area for adipose(fat) tissue in a long bone is:
A.   lacuna
B.   spongy bone tissue
C.   diaphysis
D.   periosteum
Question #7
Wolff's law of bone explains the effect of
A.   Age on bone thickening
B.   Mechanical stress on bone remodeling
C.   Temperature on bone growth
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.   chondrocyte
C.   osteoclast
D.   osteoblast
Question #10
Which of the following is NOT an effect of parathyroid hormone (PTH)?
A.   increased Ca2+ reabsorption by the kidneys
B.   increases the reabsorption of phosphate from the proximal tubule of the kidney
C.   increased Ca2+ uptake by the small intestine
D.   decreased Ca2+ loss by the kidneys

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