wel that completes the statement or answers Use a 2 pencil to fill in your 100-Q
ID: 3480319 • Letter: W
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wel that completes the statement or answers Use a 2 pencil to fill in your 100-Question Scantron. Tonic receptors are also known as adapting receptors. B. enxtremely fast C. slowly D. A&B; E. A, B & C Which of the following organelles stores and releases CALCIUM within skeletal muscle fibers? A. Sarcoplasmic reticulum B. Troponin C. Rough endoplasmic reticulum D. Tropomyosin E. Smooth endoplasmic reticulum ) Which of the following are effector organs are targeted by LOWER motor neurons? A. Cardiac muscle cells B. Skeletal muscle fibers C. Adipocytes, glands, cardiac muscle fibers & smooth muscle cells D. A& B E. A, B&C; BAPID depolarization phases of action potentials from pacemaker cells are generated byinfluxes. A. chloride B. sodium C. bicarbonate D. calcium E. potassium 5) Which of the following factors affects the force generated by individual skeletal musele FIBERS? A. Fiber diameter B. Changes in fiber length C. D. Frequency of stimulation A& B E. A, B&C; ) Which of the following mechanisms is displayed by microbial ANTAGONISM? A. Outcompeting human cells for available nutrients B. Altering pH & changing oxygen availability C. Producing harmful substances to the host D. All of the above E. None of the above The LNTRINSIC response to stretch of arteriolar smooth muscle is regulated by the A. total peripheral resistance B. mean arterial pressure C. myogenic response D. A & B E. A, B &C; Page 1 of 8Explanation / Answer
1. C. slowly
Tonic receptors are also known as slowly adapting receptors.
These receptors adapt very slowly to a stimulus. Example - Ruffini corpuscle.
2. A. Sarcoplasmic reticulum
Sarcoplasmic reticulum releases calcium ions required in the muscle contraction.
3. B. Skeletal muscle fibers.
Lower motor neurons target skeletal muscle fibers and control voluntary movements.
4. D. Calcium
Once due sodium ion influx, when the cells start slowly depolarizing and reach threshold, now rapid depolarization occurs as calcium ions enter inside the cells.
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