Examination of a tissue sample from the central nervous system reveals many darkly pigmented cells. This tissue probably came from the
A) nucleus gracilis.
B) nucleus cuneatus.
C) motor cortex.
D) substantia nigra.
E) red nucleus.
Answer: D
You might also like to view...
Which of the following is a principle of the fluid mosaic model of cell membrane structure?
A) Phospholipids form a bilayer that is largely impermeable to water-soluble molecules. B) Phospholipids consist of a polar head and a nonpolar tail made of three fatty acid chains. C) The lipid bilayer is a solid at body temperature, thus protecting the cell. D) All proteins associated with the cell membrane are contained in a fluid layer on the outside of the cell.
Which is NOT true regarding autonomic reflexes?
A) Integrating centers for autonomic reflexes in the brain include the hypothalamus, brain stem, and limbic system. B) Autonomic reflexes are all monosynaptic, with their synapse in the central nervous system. C) Many autonomic reflexes are characterized by tonic activity, a continuous stream of action potentials. D) Vomiting, sneezing, and coughing are all examples of autonomic reflexes.
Hormones are chemical messengers produced by the ________ system that helps in maintaining homeostasis
A) nervous B) endocrine C) urinary D) cardiovascular
The lumbar regions are located lateral to the umbilical region.
Answer the following statement true (T) or false (F)