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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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
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
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