Contrast the functions of the following pairs: thalamus and hypothalamus; cerebellum and basal nuclei
What will be an ideal response?
Thalamus is a relay center for sensory synaptic input, helps direct attention, has a crude awareness of sensations, and plays a minor role in consciousness. Hypothalamus has a variety of functions including: controlling body temperature, thirst, urine output, food intake, and anterior pituitary hormone secretion; producing posterior pituitary hormones that control uterine contractions and milk letdown; and being involved in the sleep-wake cycle.
Basal nuclei inhibit muscle tone, coordinate slow and sustained movements, and suppress useless patterns of movement. Limbic system controls emotions, is associated with survival and socio-sexual behavior, and is involved in motivation and leaning. The cerebellum maintains balance, enhances motor tone, and is involved in the coordination and planning of skilled, voluntary motor activity.
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A. Follicle-stimulating hormone (FSH) B. Adrenocorticotropic hormone (ACTH) C. Growth hormone (GH) D. Cortisol E. Prolactin
What is the most common cause of blood flow turbulence?
a. weak ventricular contractions b. weak atrial contractions c. malfunction of the SA node d. valve malfunctions e. destruction of the AV node
The ________ division of the ANS is most commonly associated with the preparation of the body for emergencies.
Fill in the blank(s) with the appropriate word(s).
A condition in which stimuli occur so rapidly that there are no intervening relaxations between contractions is called
A. complete tetanus. B. incomplete tetanus. C. involuntary paralysis. D. all or none tetanus. E. treppe.