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BIO201_MH_V3
Topic 7: Bones and Skeletal System
Started on Thursday, September 9, 2021, 5:04 AM
State Finished
Completed on Thursday, September 9, 2021, 5:34 AM
Time taken 30 mins 14 secs
Grade 35.00
...
Page path
BIO201_MH_V3
Topic 7: Bones and Skeletal System
Started on Thursday, September 9, 2021, 5:04 AM
State Finished
Completed on Thursday, September 9, 2021, 5:34 AM
Time taken 30 mins 14 secs
Grade 35.00 out of 35.00 (100%)
Question 1
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Which type of bone is considered dense bone?
Select one:
a. spongy bone
b. compact bone
c. both spongy and compact
Question 2
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A passageway connecting neighboring osteocytes in an osteon is a
Select one:
a. central canal.
b. lamella.
c. canaliculus.
d. lacuna.
e. osteocanal.
Question 3
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What does structure "A" represent on the bone diagram?
Select one:
a. cancellous bone
b. diaphysis
c. epiphyseal lines
d. articular cartilage
e. epiphysis
Question 4
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The proportion of collagen to hydroxyapatite in bone determines the
Select one:
a. thickness of the bone.
b. length of the bone.
c. strength of the bone.
d. ability of the bone to heal.
e. growth rate of bone.
Question 5
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When blood calcium levels are low
Select one:
a. osteoclast activity increases.
b. calcitonin secretion increases.
c. calcium absorption is reduced.
d. bones produce more bone tissue.
e. osteoblast activity increases.
Question 6
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The connective tissue sheath of cartilage is called the
Select one:
a. matrix.
b. chondrocyte.
c. ligamentous cord.
d. lacuna.
e. perichondrium.
Question 7
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A connective tissue sheath around cartilage is the
Select one:
a. endosteum.
b. perichondrium.
c. periosteum.
d. epiphyseal line.
e. ligament.
Question 8
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This is a diagram of calcium homeostasis. What process is represented by "E"?
Select one:
a. PTH promotes calcium release into blood by osteoclast.
b. Calcium is removed from blood by osteoblasts.
c. Vitamin D promotes calcium absorption.
d. Calcium is lost in urine.
e. PTH promotes calcium reabsorption from urine.
Question 9
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Osteoclasts have projections that cause bone reabsorption called
Select one:
a. canaliculi.
b. lacunae.
c. ruffled borders.
d. lamellae.
e. crossroads.
Question 10
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How does the respiratory system contribute to osteoporosis?
Select one:
a. Lack of exposure to sunlight reduces vitamin D production and decreases calcium
absorption.
b. Immune cells resist infections and release chemicals that promote tissue repair.
c. Excessive smoking lowers estrogen levels, which increases bone loss.
d. Calcium ions released from the bones are excreted.
e. Decreased estrogen levels following menopause contribute to the disease.
Question 11
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The pelvic girdle and lower limb are part of the
Select one:
a. axial skeleton.
b. appendicular skeleton.
Question 12
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Shannon, a boxer, is informed after a fight that she has a broken ethmoid bone, and that
due to its location she may have difficulty with which of these special senses?
Select one:
a. equilibrium
b. hearing
c. vision
d. smell
Question 13
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Which of the following facial bones is correctly matched with its function?
Select one:
a. maxilla - possesses sockets for teeth
b. vomer - forms the hard palate
c. inferior nasal conchae - contain nasolacrimal canals
d. zygomatic - provides attachment point for temporalis muscle
e. temporal - is part of the orbit.
Question 14
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Which of the following is a function of the vertebral column?
Select one:
a. It supports the weight of the body.
b. It allows spinal nerves to exit the spinal cord.
c. It serves as a passageway for the cranial nerves.
d. It contains numerous foramens for the passageway of blood vessels.
e. It protects the brain.
Question 15
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The ligamentum nuchae
Select one:
a. protects the brain.
b. is a part of the nose.
c. moves the eye.
d. supports the jaw.
e. helps keep the head erect.
Question 16
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What results from damage to annulus fibrosus and release of nucleus pulposus?
Select one:
a. lordosis
b. kyphosis
c. scoliosis
d. spina bifida
e. herniated disk
Question 17
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The humerus articulates with the ulna at the
Select one:
a. medial epicondyle.
b. lateral epicondyle.
c. capitulum.
d. radial fossa.
e. trochlea.
Question 18
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The upper limb and its girdle are attached rather loosely to the rest of the body. This
arrangement
Select one:
a. results in a disjointed appearance.
b. limits fine coordination of the hands.
c. allows a wide range of movements.
d. restricts the amount of weight the upper limb can support.
e. results in a limited range of motion.
Question 19
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The loss of height that occurs with aging is due to compression of the
Select one:
a. pelvic girdle.
b. vertebral arches.
c. vertebral bodies.
d. vertebral foramen.
e. intervertebral discs.
Question 20
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A cleft palate results from incomplete development of the _______
Select one:
a. palatine bones.
b. lacrimal bones.
c. mandible.
d. vomer bone.
e. frontal bone
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