5) reactive hyperemia is
a) lack of blood flow due to an allergic reaction.
b) increased blood flow following a period of reduced blood flow.
c) increased blood pressure after stress.
d) reflex contraction of smooth muscle in response to stress.
e) none of the answers are correct.
6) if oxygen is not available for aerobic atp production, ________ builds up on muscles.
a) glucose
b) atp
c) pyruvic acid
d) lactic acid
7) inhibitory postsynaptic potentials (ipsps )
a) result in local depolarizations.
b) result in local hyperpolarizations.
c) increase membrane permeability to sodium ions.
d) prevent the escape of potassium ions.
e) prevent the escape of calcium ions.
8) the structure that carries sperm from the epididymis to the urethra is the
a) ductus deferens.
b) rete testis.
c) seminal vesicle.
d) ejaculatory duct.
e) corpus cavernosum.
9) the tac sequence of dna is the ________ of a coding sequence that is preceded by the
________ that regulates transcription.
a) start, promoter region
b) start, intron
c) stop, promoter region
d) stop, intron