Which may be involved in an autonomic reflex?
A. Cardiac muscle contraction
B. Smooth muscle contraction
C. Secretion by glands
D. All of the choices are correct.
E. None of the choices is correct.
D
You might also like to view...
________ deafness results from conditions in the outer or middle ear that block the transfer of vibrations from the environment to the tympanic membrane or to the oval window
A) Sensory B) Nerve C) Conductive D) Mechanical E) Macular
In the retina, the __________ cells are the second-order neurons of the visual pathway whose axons form the optic nerve.
Fill in the blank(s) with the appropriate word(s).
The grooves on the surface of the cerebrum are called
A) nuclei. B) commissures. C) tracts. D) sulci. E) gyri.
The anterior boundary of the "rib cage" is/are the ________.
A. costal cartilages B. thoracic vertebrae C. sternum D. skin E. ribs