A&P 1 Straighterline Study Exam |
Answered and Graded A+ | Latest 2024
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. - Correct Answer -strength of the bone
Which of the following statements regarding calcium homeostasis is true?
Select one:
a. Parathyroid hormone inhibits osteoclast activity.
b. When blood calcium levels are too low, osteoclast activity increases.
c. Increased osteoblast activity increases blood calcium levels.
d. Parathyroid hormone increases calcium loss from the kidney.
e. Calcitonin elevates blood calcium levels - Correct Answer -When blood calcium
levels are too low, osteoclast activity increases.
The connective tissue sheath of cartilage is called the
Select one:
a. matrix.
b. chondrocyte.
,c. ligamentous cord.
d. lacuna.
e. perichondrium. - Correct Answer -perichondrium
Which of the following matrix molecules in cartilage tends to trap large quantities
of water?
Select one:
a. collagen
b. proteoglycan
c. hyaluronic acid
d. elastin
e. chondrocytes - Correct Answer -proteoglycan
The locations where ossification begins in intramembranous ossification are
known as
Select one:
a. secondary ossification centers.
b. membranous ossification centers.
c. centers of ossification.
d. medullary cavity ossification centers.
e. epiphyseal ossification centers. - Correct Answer -centers of ossification
A bone fracture generally found in children that is incomplete is a(an)
Select one:
a. complicated fracture.
,b. hairline fracture.
c. spiral fracture.
d. dentate fracture.
e. greenstick fracture. - Correct Answer -greenstick fracture
Long bones grow in length at the
Select one:
a. epiphyseal plate.
b. articular cartilage.
c. center of the shaft.
d. endosteum-periosteum junction.
e. center of the epiphysis. - Correct Answer -epiphyseal plate
The largest and most superior coxal bone is the
Select one:
a. ischium.
b. femur.
c. ilium.
d. pubic.
e. coccyx. - Correct Answer -ilium
The olecranon process is found on the
Select one:
a. ulna.
, b. radius.
c. scapula.
d. humerus.
e. clavicle. - Correct Answer -ulna
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. - Correct Answer -maxilla - possesses sockets for
teeth
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. - Correct Answer -It allows spinal nerves to exit the spinal
cord.
In a herniated ("ruptured" or "slipped") disc, the ring of fibrocartilage called the
___________ cracks and the _____________ oozes out.
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