Chapter 49- Nervous System

Your page rank:

Total word count: 312
Pages: 1

Calculate the Price

- -
275 words
Looking for Expert Opinion?
Let us have a look at your work and suggest how to improve it!
Get a Consultant

The fundamental excitable cell in the nervous system is the _____.

Neuron. [This excitable cell utilizes electrochemical mechanisms to transmit signals from one location in the body to another.]

The central canal of the spinal cord and the ventricles of the human brain contain a filtrate of the blood, called _____.

Cerebrospinal fluid [The arterial blood in the brain forms a filtrate that makes up the cerebrospinal fluid (CSF), which drains into the venous circulation.]

Dolphins can be awake and asleep at the same time because _____.

one side of the brain can sleep while the other side maintains swimming and breathing behaviors. [Dolphins really are half awake much of the time: while the right side of the brain sleeps, the left is active, and vice versa, in an alternating pattern.]

Emotion, motivation, olfaction, behavior, and memory, in humans, are mediated by the _____.

limbic system [controls various appetites and motivations in the brain]

As vertebrates evolved, the increasingly complex structure of the brain conferred increasingly complex function, especially apparent in the _____.

cerebral cortex, which is greatly expanded in nonhuman primates and cetaceans. [This region supports language, a very complex function, and other higher-level thinking processes.]

Motor cortex and somatosensory cortex are _____.

organized in similar manner adjacent to each other, and are anatomically similar from one person to the next. [The sensory and motor parts of these cortices are topographically matched along the border of the frontal and parietal lobes, and are predictably arranged.]

In adult humans, short-term memory relies on connections in the _____ whereas long-term memories appear to be based in the _____.

hippocampus … cerebral cortex

Addiction onset by cocaine and amphetamines is characterized by increased _____.

persistence of dopamine in the brain’s synapses. [Normally, dopamine is quickly removed from the synapses where it functions, but these addictive drugs delay dopamine removal, leading to increased influence of dopamine.]

Parkinsonism is characterized by the loss of _____.

dopaminergic neurons.

Share This

More flashcards like this

NCLEX 10000 Integumentary Disorders

When assessing a client with partial-thickness burns over 60% of the body, which finding should the nurse report immediately? a) ...

Read more


A client with amyotrophic lateral sclerosis (ALS) tells the nurse, "Sometimes I feel so frustrated. I can’t do anything without ...

Read more

NASM Flashcards

Which of the following is the process of getting oxygen from the environment to the tissues of the body? Diffusion ...

Read more

Unfinished tasks keep piling up?

Let us complete them for you. Quickly and professionally.

Check Price

Successful message