bios 252 comprehensive exam Questions and
Answers with Verified Solutions
When compared to a classic lever system, the synovial joins our
musculoskeletal system play the role of the______. - ANSWER
fulcrum
Which of the following events will occur when depolarizing
graded potentials reach the membrane of the axon hillock,
causing it's membrane potential to reach threshold? - ANSWER
voltage-gated Na+ channels open rapidly
The attachment of a muscle's tendon to the stationary bone is
called the___; the attachment of the muscle's other tendon to
the moveable bone is called the ____. - ANSWER origin,
insertion
Which of the following fascicular arrangements would best be
described as fascicles arranged on only one side of the tendon?
- ANSWER unipennate
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Which type of synapse involves the secretion of a
neurotransmitter across the synapse to stimulate the post-
synaptic cell? - ANSWER chemical
Your friend nods 'yes' to you. Going through flexion, extension
and hyperextension in their enthusiastic response. This
movement at t he fulcrum represents a - ANSWER first class
lever
The sarcoplasmic reticulum stores - ANSWER calcium ions
Which of the following is NOT a function of smooth muscle
tissue? - ANSWER blinking the eyelid
In a isometric contraction, the muscle develops tension but
does NOT - ANSWER shorten
_________ is the summation of postsynaptic potentials in
response to stimuli that occur at different locations in the
membrane of a postsynaptic cell at the same time - ANSWER
spatial summation