Answer These Central Nervous System Flashcards

Neural tube

The blood- and oxygen-rich red zone Each cerebral hemisphere has three basic regions: a superficial cortex of gray matter, internal white matter, and the basal nuclei.

They allow us to control our skeletal muscles The primary (somatic) motor cortex is located in the precentral gyrus of the frontal lobe of each hemisphere. Large neurons, called pyramidal cells, in these gyri allow us to consciously control the precise or skilled voluntary movements of our skeletal muscles.

Detection of odors

True

It allows us to tie information that we receive to previous experience and knowledge, and helps us decide what action to take. The multimodal association cortex allows us to give meaning to the information that we receive, store it in memory if needed, tie it to previous experience and knowledge, and decide what action to take.

Lateralization

The cerebral white matter

Perithalamus

Hypothalamus

Cerebellum From superior to inferior, the brain stem regions are midbrain, pons, and medulla oblongata.

Medulla oblongata The small size of the medulla oblongata belies its crucial role as an autonomic reflex center involved in maintaining body homeostasis. Important visceral motor nuclei found in the medulla include the following:

1. Cardiovascular center, which adjusts the force and rate of heart contraction to meet the body's needs, and changes blood vessel diameter to regulate blood pressure;
2. Respiratory center, which generates the respiratory rhythm and helps to control the rate and depth of breathing;
3. Various other centers, regulating activities such as vomiting, hiccupping, swallowing, coughing, and sneezing.

Sleep apnea

Arachnoid matter

Blood-brain barrier The blood-brain barrier is a protective mechanism that helps maintain a stable environment for the brain