The membrane covering the axon is called the ________
A) neurolemma
B) myelin sheath
C) axolemma
D) white matter
C
Explanation:
A) The neurolemma covers Schwann cells.
B) The myelin sheath is made up of Schwann cells.
D) White matter consists of myelinated axons.
You might also like to view...
What properties does water have that make it a very versatile fluid?
What will be an ideal response?
The inferior end of the spinal cord is anchored to the coccyx by the
A) cauda equina. B) conus medullaris. C) filum terminale. D) tectum.
Define baroreceptors. Where are baroreceptors located within the body?
A) Baroreceptors are thermoreceptors that detect changes in temperature. They are primarily located in the skin and hypothalamus. B) Baroreceptors are stretch receptors that detect changes in pressure. They are located along the digestive tract, within the walls of the urinary bladder, in the carotid and aortic sinuses, and in the lungs. C) Baroreceptors are chemoreceptors that detect changes in oxygen and carbon dioxide concentrations. They are located within the medulla oblongata and in the carotid and aortic bodies. D) Baroreceptors are nociceptors that detect pain. They are located throughout the somatic and visceral systems of the body. E) Baroreceptors are chemoreceptors that detect changes in pH. They are located within the medulla oblongata and in the carotid and aortic bodies.
You hear a loud noise behind you and look back over your left shoulder. Which of the following is true?
A. This was an ipsilateral contraction of your left sternocleidomastoid muscle. B. This was a contralateral contraction of your left sternocleidomastoid muscle. C. This was a contralateral contraction of your right sternocleidomastoid muscle. D. This was an ipsilateral contraction of your right sternocleidomastoid muscle.