31. All of the following statements are true of cartilage except _____. a. Carti
ID: 60436 • Letter: 3
Question
31. All of the following statements are true of cartilage except_____.
a. Cartilage is located at joints.
b. Cartilage functions to make movements smooth and relatively frictionless.
c. Cartilage is primarily epithelial tissue.
d. Cartilage functions to cushion movements.
e. Cartilage is composed of cells called chondrocytes and chondroblasts.
32. _______ is a calcium and phosphate rich molecule that functions to provide flexibility to bone.
collagen
keratin
elastin
hydroxyapatite
proteoglycan
33. ______ functions to generate electrical signals and control the activity of most cells, tissue , and organs of the body.
a. connective tissue
b. epithelial tissue
c. muscle tissue
d. nervous tissue
34. The ______ is located in the medullary cavities and in the pores of spongy bone and functions to produce red and white blood cells and platelets.
metaphysis
bone marrow
Haversian canal
canaliculi
bone matrix
35. The glands of the integumentary system originate from the ____ .
a. hypodermis
b. dermis
c. subcutaneous membrane
d. reticular layer
e. epidermis
36. Bone is composed of __________.
a. 1/3 collagen, 2/3 hydroxyapatite, 1% cellular
b. 10% collagen, 80% hydroxyapatite, 10% cellular
c. 2/3 collagen, 1/3 hydroxyapatite, 5% cellular
d. 2/3 hydroxyapetite, 1/3 collagen, 20% cellular
e. 1/4 collagen, 2/4 hydroxyapatite, 1/4 cellular
37. Which hormone does not regulate blood levels of the calcium ion?
a. human growth hormone
b. parathyroid hormone
c. thyroxine
d. epinephrine
e. estrogen
38. What is located in the medullary cavity of long bones and the pores of spongy bones?
a. bone marrow
b. water
c. osteoprogenitor cells
d. glycogen
e. calcium
39. _______ functions to make bone hard.
a. collagen
b. hydroxyapatite
c. vitamin D
d. erythropoeitin
e. elastin
40. Red bone marrow functions to _________.
a. produce osteocytes
b. produce osteoprogenitor cells
c. regulate the production of bone matrix
d. make bones light yet strong
e. produce blood cells
Explanation / Answer
31. C. Cartilage is primarily epithelial tissue. IT is primarily connective tissue
32. hydroxyapatite
33.d. nervous tissue
34. bone marrow
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