QUESTIONS AND VERIFIED SOLUTIONS
◉ This _______ gland in the axilla become ative at the time of puberty.
a. eccrine sweat
b. aprocrine sweat
c. axillary
d. sebaceous
e. ceruminous. Answer: b. aprocrine sweat
◉ Melanocytes and keratinocytes work together in protecting the
skin from UV damage when keratinocytes ________________________.
a. maintain the appropriate pH in order for the melanocyte to
synthesize melanin granules
b. accumulate the melanin granules on their superficial portion
forming a UV blocking pigment layer
c. maintain the appropriate temperature so the product of the
melanocyte will no denature
,d. provide the melanocyte with nutrients necessary for melanin
synthesis. Answer: b. accumulate the melanin granules on their
superficial portion forming a UV blocking pigment layer
◉ A group of concentric rings of bone matrix comprising the
functional unit of long bones is called a(n) ____________
a. lamella
b. osteon
c. pillar system
d. Sharpey's fibers. Answer: b. osteon
◉ What would long bone growth look like in an individual whose
cartilage in the epiphyseal disc stopped dividing?
a. the long bones would grow excessively
b. the long bones would cease to growth in length
c. the long bones would cease growth in width
,d. the long bones would appear normal. Answer: b. the long bones
would cease to growth in length
◉ Which of the following bone cell types is primarily responsible for
initiating ossification of bone?
a. osteoblasts
b. osteoclasts
c. osteocytes
d. chondroblasts. Answer: a. osteoblasts
◉ Which of the following correctly lists the three structural types of
joints?
a. Bony, cartilaginous, immovable
b. synarthrotic, diarthrotic, amphiarthrotic
c. fibrous, cartilaginous, synovial
d. sutures, syndesmoses, gomphoses. Answer: c. fibrous,
cartilaginous, synovial
◉ All synovial joints are _________
a. diarthrotic
, b. amphiarthrotic
c. synarthrotic
d. none of the above. Answer: a. diarthrotic
◉ The most common form of chronic arthritis is __________.
a. osteoarthritis
b. rheumatoid arthritis
c. gouty arthritis
d. subluxation. Answer: a. osteoarthritis
◉ Of the following muscle types which is the only one subject to
conscious control
a. smooth
b. skeletal
c. cardiac
d. all of the above. Answer: b. skeletal
◉ The time period between action potential initiation and
mechanical activity of a muscle fiber is called ______.