LQ6--Sagittal Brain(fig 13.9) CHAP-13 Quiz 10

commissural tracts of white matter

Myelinated axons that extend between the cerebral hemispheres are called_____________. Extend between the cerebral hemispheres through axonal bridges called commissures. The prominent commissural tracts that link the left and right cerebral hemispheres include the large, C-Shaped corpus callosum and the smaller anterior and posterior commissures.

Choroid plexus

Produces cerebrospinal fluid (CSF) in each ventricle?

Which structures are parts of the midbrain?

cerebral aqueduct corpora quadrigemina corpus callosum

The four major regions of the brain are the

cerebrum, diencephalon, brainstem, cerebellum

The pituitary gland is connected to the

hypothalamus by the infundibulum. The pituitary gland is connected directly to part of the brain called the hypothalamus. This provides a key link between the brain and the endocrine system, a collection of glands in the body that make hormones.

Primary somatosensory cortex

Cortical region responsible for the conscious awareness of touch, pressure, pain, and temperature.

Name the white matter of the cerebellum that makes a pattern resembling a tree of life.

Arbor vitae

Limbic System

Because of its major roles in controlling emotions, drives, and memory, damage to the ____________ could drastically alter an individual's personality. -Located on both sides of the thalamus, immediately beneath the medial temporal lobe of the cerebrum primarily in the forebrain. It supports a variety of functions including emotion, behavior, motivation, long-term memory, and olfaction.

Where is the arbor vitae located?

Cerebellum The white matter in the cerebellum has a branching arrangement that resembles a tree. This structure is named for its appearance. The term arbor vitae means "tree of life."

What structure connects the third and fourth ventricles?

Cerebral aquduct

interventricular foramen

Connection between lateral ventricles and third ventricle

Medulla Oblongata

Continuation of the spinal cord within the skull, forming lowest part of the brainstem and containing control centers for the heart and lungs. cone-shaped neuronal mass responsible for autonomic functions ranging from vomiting to sneezing. Contains the cardiac, respiratory, vomiting and vasomotor centers and deals with autonomic functions of breathing, heart rate and blood pressure as well as the sleep wake cycle.

Lists the cranial meninges in order from superficial to deep

From superficial to deep, these are the Dura mater, Arachnoid mater, and Pia mater. The dura mater is also termed the pachymeninx (thick meninx). The term cranial meninges refers to the three tissue layers that unsheathe the brain deep to the skull.

The primary motor cortex is located in which cerebral structure?

In the Precentral Gyrus, works to plan and execute movements

Hypothalamus

Region of the diencephalon that controls the ANS and endocrine system, body temperature, circadian rhythms, and various emotions and behavioral drives. One of the most important functions of the hypothalamus is to link the nervous system to the endocrine system via the pituitary gland. The hypothalamus is located below the thalamus and is part of the limbic system.

Spinal cord

The __________ __________ is a part of the central nervous system, but it is not a part of the brain.

The major right and left divisions of the cerebrum are called

The cerebrum is the largest and most developed of the five major divisions of the brain. The brain contains two hemispheres, the left and the right, connected by a bundle of nerve fibers called the corpus callosum.

interthalamic adhesion

The right and left lobes of the thalamus are connect together at the_____________. A small, midline mass of gray matter that connects the right and left thalamic bodies

Cerebral nuclei

The term for the clusters of gray matter found deep inside each cerebral hemisphere, within the white matter of the brain.

Pons and Medulla oblongata

Two parts of the brain most directly control normal breathing, control respiration, heart rhythms, and blood glucose levels. The medulla oblongata is connected by the pons to the midbrain and is continuous posteriorly with the spinal cord, with which it merges at the opening (foramen magnum) at the base of the skull.

What structure acts as a passageway between the lateral and third ventricles? (Hint: The lateral ventricles are not shown on the figure because they are lateral to a midsagittal section of the brain.)

interventricular foramen