The series of membranous channels that surround each myofibril is the
A) sarcoplasmic reticulum.
B) sarcoplasm.
C) sarcomere.
D) sarcolemma.
E) endomysium.
A
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In response to high blood pressure, stretch receptors called ________ in the walls of arteries carrying blood to the head, will trigger a reflex that causes the heart to ________ its beats per minute
A) chemoreceptors; increase B) baroreceptors; decrease C) proprioceptors; increase D) baroreceptors; increase E) proprioceptors; decrease
Which term describes a cell with a full complement of chromosomes (2n)?
a. metaploid b. haploid c. diploid d. triploid
The pleura and pericardium are examples of ________ membranes that cover organs in a body cavity closed to the exterior
A) mucous B) serous C) cutaneous D) synovial
Which center bears the primary responsibility for generating the respiratory rhythm, but is influenced by several other centers?
A. PRG B. DRG C. VRG D. SRG