What is the function of chemoreceptor reflexes?
What will be an ideal response?
Chemoreceptor reflexes respond to decreasing pH and oxygen levels in the blood and cerebrospinal fluid (CSF) by adjusting cardiovascular and respiratory activity. These reflexes stimulate responses by the cardiovascular centers to increase blood pressure through vasoconstriction and increased cardiac output and stimulate responses by the respiratory centers to increase the respiratory rate, which increases pH and oxygen levels and decreases CO2 levels.
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Which of the following best describes the term Z line?
A) protein that accounts for elasticity of resting muscle B) repeating unit of striated myofibrils C) storage site for calcium ions D) thin filaments are anchored here E) largely made of myosin molecules
There are ________ pairs of cranial nerves
A) 2 B) 6 C) 12 D) 22 E) 31
Which is not a protein found in thin filaments?
A. Actin B. Troponin C. Tropomyosin D. Sarcomyosin E. No exceptions; all are found in thin filaments
We can touch our finger to our nose while our eyes are closed in part because we can sense the position and movement of our joints as well as the length of stretch in our muscles. These sensations create awareness of our body's positioning
The following receptors are most likely responsible for this ability. A) nociceptors B) proprioceptors C) exteroceptors D) interoceptors