Practice Exam 2

Question 1

which epidermal layer is the mitotic layer?

Answer 1

stratum basale

Question 2

which skin layer is comprised of dense irregular connective tissue?

Answer 2

dermis reticular layer

Question 3

what sweat gland is widely distributed over the body?

Answer 3

merocrine (eccrine)

Question 4

long bone development from a hyaline cartilage template is what type of osteogenesis?

Answer 4

endochondral

Question 5

long bone strength is attributable to

Answer 5

lamellar collagen arrangement

Question 6

which cells have ruffled borders and secrete hydrochloric acid?

Answer 6

osteoblasts

Question 7

the weight bearing portion of a vertebrae is the

Answer 7

body

Question 8

cervical vertebra can be distinguished by its

Answer 8

transverse foramina

Question 9

sella turcica is a landmark on which bone

Answer 9

sphenoid

Question 10

knee ligament that attaches tibia to the femur in the joint capsule

Answer 10

anterior cruciate

Question 11

synovial joints are characterized by

Answer 11

fibrous capsule, synovial membrane, synovial fluid, and articular cartilage

Question 12

bending backwards at the waist is

Answer 12

hyperextension

Question 13

connective tissue sheath that wraps together fascicles

Answer 13

perimysium

Question 14

ability of skeletal muscle fibers to store and release large amounts of Ca is…

Answer 14

sarcoplasmic reticulum

Question 15

molecule that provides short-term energy storage for muscle contraction

Answer 15

creatine phosphate

Question 16

the primary determinant of contractile force generated by skeletal muscle

Answer 16

muscle fiber size and number of motor units activated

Question 17

describe the role of ATP in the process of skeletal muscle contraction

Answer 17

resetting myosin heads, calcium uptake in the SR, and actin-myosin bridge detachment

Question 18

which statement describes the events of the sliding filament model of muscle contraction

Answer 18

the actin and myosin filaments slide past each other without shortening

Question 19

what unique skeletal muscle adaptation allows instant activation of all myofibrils in muscle fiber?

Answer 19

t-tubule system

Question 20

which muscle cell is single-nucleated, has few mitochondria, and doesn’t have t-tubules and troponin?

Answer 20

visceral smooth