The embryonic-like cells that remain in adult skeletal muscle tissue are known as satellite cells.
Answer the following statement true (T) or false (F)
True
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Though the myofibrils within a muscle fiber run the length of the cell, they are actually composed of groupings of ________ (protein filaments).
Fill in the blank(s) with the appropriate word(s).
Sensory nerve endings that are located in the carotid bodies are rich in vagal fibers. How would external stimulation of the carotid artery, such as carotid massage, affect the heart rate?
What will be an ideal response?
Catecholamines are released by the ________.
A) pancreas B) thyroid gland C) adrenal cortex D) adrenal medulla
The spinal cord begins at the ________ and ends at the ________.
A. foramen magnum; first lumbar vertebrae B. fifth cervical vertebrae; coccyx C. foramen magnum; sacrum D. second cervical vertebrae; first lumbar vertebrae