Anaphy Lab (human brain and cranial nerves)

39問 • 2年前

問題一覧

___ is a mushroom-shaped organ which is one of the largest organs of the body whose normal weight in adults is 1,300 grams (3 lbs.)

Brain

(stalk of the mushroom)

Brainstem

3 parts of brainstem

medulla oblongata pons varolli midbrain

2 parts of diencephalon

thalamus hypothalamus

This constitutes about 7/8 of the total weight of the brain

cerebrum

This is inferior to the cerebrum and posterior to the brainstem

cerebellum

3 parts of cranial meninges

dura mater arachnoid membrane pia mater

is the outermost cranial meninx

dura mater

dura mater consists of two fused layers:

inner dura mater outer dura mater

is continuous with the spinal dura mater and extends into the fissure that divides the left and right hemispheres of the cerebrum (flax cerebri), and reaches into the fissure between the cerebrum and cerebellum (tentorium cerebelli

inner dura mater

is actually the periosteal layer of the skull bones. This is a tough, fibrous layer containing veins and arteries that nourish the bones

outer dura mater

is the middlemost layer of the meninges found between the dura mater and pia mater

arachnoid membrane

between the arachnoid membrane and the pia mater is the ___ which contains the ___ and ___

subrachnoidspace cerebrospinal fluid blood vessels

is the delicate innermost meningeal layer. It directly covers, and is attached to, the outer surface of the brain, and dips down into the fissures between the raised ridges of the brain. This has a large number of small blood vessels

pia mater

Ventricles of the brain. These are spaces / cavities in the brain that communicate with each other, with the central canal of the spinal cord and with the subarachnoid space. These ventricles include

1. Lateral ventricles (2) 2. Third ventricle (1) 3. Fourth ventricle (1) 4. Interventricular foramen (1) 5. Cerebral aqueduct (1)

This is a clear, colorless fluid of watery consistency, which is essentially an ultrafiltrate of blood

cerebrospinal fluid

cerebrospinal fluid chemically contains

proteins glucose urea salts

This formed by the filtration from the network of capillaries (choroid plexuses) located in the ___; and may be formed also by ___

ventricles ependymal cells

The entire central nervous system contains about ____ of cerebrospinal fluid

124 ml (4 oz.)

this provides a special environment in which the brain floats, cushioning it against hard blows and sudden movements; or provides a protective buoyancy for the brain;

subrachnoidspace

3 membranous layer of the brain

cranial meninges ventricles of the brain cerebrospinal fluid

The largest and most complex structure of the nervous system

cerebrum

cerebrum Consists of two cerebral hemispheres, the ____. These are separated by a deep groove called ___

right and left halves or hemispheres longitudinal fissure

Composed of outer gray matter (cerebral cortex) and inner white matter.

cerebrum

Composed of upfoldings called ___, deep downfoldings called ___; and shallow downfoldings called ___

gyri / convolutions fissures sulci / sulcus.

Internally, the two hemispheres are connected by a large bundle of transverse fibers composed of white mater called ___

corpus callosum

Its longitudinal fissure between the hemispheres is an extension of cranial dura mater called ___

falxcerebri

Each cerebral hemisphere is subdivided into lobes by fissures or sulci, namely -

frontal, parietal, temporal and occipital lobes.

separating the frontal lobe from parietal lobes

fissure of rolando

separating the frontal lobe from the temporal lobe

fissure of sylvius

found between parietal lobe and occipital lobe

parieto-occipital line

The cerebrum separates from the cerebellum by a deep groove called ___

transverse cerebral fissure.

(called the "motor lobe")

frontal lobe

is concerned with the evaluation of the general senses and of taste.

parietal lobe

is the lobe located closest to the ears

temporal lobe

contains the visual cortex and is made up of several areas organized for vision and its associated forms of expression

occipital lobe

___. This is the deep part of the cerebrum

Diencephalon

is composed of two egg-shaped masses of gray matter covered by a thin layer of white mater

thalamus

___ lies directly under the thalamus

Hypothalamus

Microbiology / Parasitology

Jholie Jean Guibone · 20問 · 2年前

Microbiology / Parasitology