Why do human beings lose height as they reach old age?
What will be an ideal response?
In a young adult approximately twenty-five percent of the length of the spinal column is made up of the fibrocartilage pads, the intervertebral discs that are located between vertebral bodies from the axis to the sacrum. As the individual ages, the intervertebral discs lose some of their resilience and become permanently compressed, thus reducing the length of the spinal column and making the person shorter.
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The esophagus provides a passageway for substances from the larynx to the bronchi.
Answer the following statement true (T) or false (F)
Which of the erector spinae muscles is most lateral to the vertebral column?
A. Longissimus muscle B. Iliocostalis muscle C. Semispinalis muscle D. Spinalis muscle
Which neurotransmitter is released at neuromuscular junctions?
A. Acetylcholine B. Glutamate C. Dopamine D. Serotonin
________ play an important role in cell division, and they are made of ________.
A. Ribosomes; intermediate filaments B. Mitochondria; microtubules C. Inclusions; centrosomes D. Centrioles; microtubules E. Nucleoli; microfilaments