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| Question | Answer |
|---|
| In which of the cerebral lobes are the following functional areas found?
|
|
| auditory cortex
| temporal
|
| primary motor cortex
| frontal
|
| primary sensory cortex
| parietal
|
| olfactory cortex
| temporal
|
| visual cortex
| occipital
|
| brocas area
| frontal
|
| what structures are part of the brain stem?
| pons, medulla, midbrain
|
| a-----------is an elevated ridge of cerebral tissue.
| gyrus
|
| the convolusions seen in the cerebrum are important because they increase the
| surface area
|
| gray matter is composed of
| neuron cell bodies
|
| white matter is composed of
| mylenated fibers
|
| a fiber tract that provides for communication between different parts of the same cerebral hemisphere is called an
| association tract
|
| whereas one that carries impulses from the cerebrum to lower CNS areas is called a
| projection tract
|
| the lentiform nucleus along with the caudate nuclei are collectively called the
| basil ganglia or corpus striatum
|
| site of regulatin of body temp. and water balance;most important autonomic center
| hypothalamus
|
| consciousness depends on the function of this part of the brain
| small part of cerebral hemisphere
|
| located in the midbrain;contains reflex centers for vision and audition
| corpora quadrigemina
|
| responsible for regulation of posture and coordination of complex muscular movements
| cerebellum
|
| important synapse site for afferent fibers traveling to the sensory cortex
| thalamus
|
| contains autonomic centers regulating BP, HR, and Resp. rhythm, as well as coughing,sneezing, and swallowing centers
| medulla oblongata
|
| large commissure connecting the cerebral hemispheres
| corpus callosum
|
| fiber tract involved with olfaction
| fornix
|
| connects the third and fourth ventricles
| cerebral aqueduct
|
| encloses the third ventricle
| thalamus
|
| what is the function of the basal ganglia?
| involved in regulation, modulation and refinement of voluntary motor activity
|
| what is the corpus striatum, and how is it related to the fibers of the internal capsule?
| the fibers of your internal capsule pass between the diancephalon and the basal ganglia that gives them a striped appearance b/c corpus striatum in latin means striped body
|
| a brain hemorrhage with the region of the right internal capsule results in paralysis of the left side of the body. explain why the left side (rather than the right side)is affected.
| b/c most of your motor fibers cross over the medulla oblongata
|
| explain why trauma to thte base of the brain is often much more dangerous than truama to the frontal lobe.
| b/c the base of brain has the medulla oblongata and it contains vital resp, cardiac, and vaso motor centers; also area that maintains consciousness
|
| in "split brain' experiments, the main commissure connecting the cerebral hemispheres is cut. what is it? describe what results can be anticipated in such experiments. (in terms of behavior)
| corpus collosum; have diff. putting pic to words,they do not dream, speaking on right math on left cut off from each other.
|
| outermost menix covering the brain; composed of tough fibrous connective tissue
| dura mater
|
| innermost menix covering the brain; delicate aknd highly vascular
| pia mater
|
| structures insrumental in returning cerebrospinal fluid to the venous blood in the dural sinuses
| arachnoid villi
|
| structure that forms the cerebrospinal fluid
| coroid plexus
|
| middle menix;like a cobweb in structure
| arachnoid mater
|
| its outer layer forms the periosteum of the skull
| dura mater
|
| a dural fold that attaches the cerebrum to the crista galli of the skull
| falx cerebri
|
| a dural fold separating the cerebrum from the cerebellum
| tentorium cerebelli
|
