Chapter 13 HW (part 1)

Which of the following does not describe a function of the limbic system? -Bring about emotional states -Cause your heart rate and blood pressure to change when you are angry -Initiate memory formation -Initiate voluntary muscle movement -Cause changes in the body's physiology triggered by sensory input from the body

Initiate voluntary muscle movement The limbic system contains cortical areas and subcortical areas. These include sensory perceptive areas and association areas in the cortex. The subcortical areas include nuclei in the hypothalamus and the thalamus. Emotions can bring about physiological changes in the body, and sensory input can initiate memory formations. This system will also motivate us to do complex activities.

limbic system

an intercommunicating group of structures that allows us to express emotions. It triggers those physiological changes that are part of that emotional state. Many of these emotions are triggered by sensory input like sight, sound, smell, and taste. The limbic system also initiates long-term memory, retrieves those memories, and physiologically reestablishes those emotional states.

The presence of many large, highly-branched Purkinje cells in a sample of brain tissue indicates that it came from the

cerebellar cortex

The cerebrospinal fluid (CSF):

has its entire volume replaced roughly every 8 hours.

The limbic system:

is also known as the motivational system.

Superior cerebellar peduncles:

link the cerebellum with the midbrain, diencephalon, and cerebrum

The respiratory rhythmicity center is located in the

medulla oblongata

Which of the following is a secondary brain vesicle that will become the medulla oblongata of the adult brain? metencephalon myelencephalon telencephalon diencephalon

myelencephalon

Look up...

page 465; CSF flow page 466; cranial meninges & CSF page 469; pons page 470 & 471; cerebellum page 477; limbic system

The layer of the meninges that closely follows every gyrus and sulcus is the

pia mater.

The superior colliculi:

receive visual inputs from the thalamus and control the reflex movements of the eyes, head, and neck in response to these visual stimuli.

Which gray matter component of the medulla oblongata integrates and relays visceral sensory information to autonomic processing centers? nucleus gracilis solitary nucleus olivary nucleus ascending tracts

solitary nucleus

What contains a spider web-like network of cells and fibers through which cerebrospinal fluid flows?

subarachnoid space

Activity in the basal nuclei is regulated by which component of the midbrain?

substantia nigra

During embryonic development, which of the following secondary brain vesicles will form the cerebrum? telencephalon midbrain diencephalon myelencephalon metencephalon

telencephalon

The limbic system is an interconnected group of structures that work together to bring about different emotions, adjust autonomic and endocrine functioning, play a role in memory formation, and motivate our actions. Which of the following structures is NOT part of the limbic system? the hippocampus the fornix the amygdaloid body the cingulate gyrus the corpus callosum

the corpus callosum Notice that the limbic system contains structural parts that are close together, although in seemingly different portions of the brain. They are connected by conductive pathways and can therefore function in an integrated way to produce complex physiological changes in the body associated with emotional states.

Many of the emotional states that we experience bring about complex changes in our physiology and behavior. Which part of the limbic system controls the autonomic nervous system and endocrine function by controlling the pituitary gland? the hypothalamus anterior nuclei of the thalamus parahippocampal gyrus mammillary body

the hypothalamus

Terry suffers from dissociation of memories from their emotional content as the result of an automobile accident. What system of the brain is probably damaged?

the limbic system

Which structure is located in the diencephalon? lateral ventricle fourth ventricle third ventricle interventricular foramen

third ventricle

Absorption at the arachnoid granulations returns CSF to the

venous circulation