Practice Exam 2 Flashcards
which epidermal layer is the mitotic layer?
stratum basale
which skin layer is comprised of dense irregular connective tissue?
dermis reticular layer
what sweat gland is widely distributed over the body?
merocrine (eccrine)
long bone development from a hyaline cartilage template is what type of osteogenesis?
endochondral
long bone strength is attributable to
lamellar collagen arrangement
which cells have ruffled borders and secrete hydrochloric acid?
osteoblasts
the weight bearing portion of a vertebrae is the
body
cervical vertebra can be distinguished by its
transverse foramina
sella turcica is a landmark on which bone
sphenoid
knee ligament that attaches tibia to the femur in the joint capsule
anterior cruciate
synovial joints are characterized by
fibrous capsule, synovial membrane, synovial fluid, and articular cartilage
bending backwards at the waist is
hyperextension
connective tissue sheath that wraps together fascicles
perimysium
ability of skeletal muscle fibers to store and release large amounts of Ca is…
sarcoplasmic reticulum
molecule that provides short-term energy storage for muscle contraction
creatine phosphate
the primary determinant of contractile force generated by skeletal muscle
muscle fiber size and number of motor units activated
describe the role of ATP in the process of skeletal muscle contraction
resetting myosin heads, calcium uptake in the SR, and actin-myosin bridge detachment
which statement describes the events of the sliding filament model of muscle contraction
the actin and myosin filaments slide past each other without shortening
what unique skeletal muscle adaptation allows instant activation of all myofibrils in muscle fiber?
t-tubule system
which muscle cell is single-nucleated, has few mitochondria, and doesn’t have t-tubules and troponin?
visceral smooth
