The thalamus __________.

Biology

2 answers:

Dahasolnce [82]3 years ago

8 0

Answer:

D. Is a collection of approximately 12 nuclei where every type of sensory impulse except olfactory impulses synapse.

Explanation:

The thalamus is a mass in the centre of brain where the sensory impulses arrive to be processed there or to continue up to the brain, the only impulse that is not processed there is the olfactory one. This travels directly to the brain. It has 12 nuclei, each of them has a specific function as regards the processing of information.

IrinaVladis [17]3 years ago

5 0

Answer: B. is a "bridge" that relays nerve impulses between the cerebrum and cerebellum via the middle cerebellar peduncles.

Explanation:

The thalamus is a small structure in the brain that is located above the brain stem between the cerebral cortex and the midbrain. It has a lot of nerve connections to both. The major function of the thalamus is to pass motor and sensory signals to the cerebral cortex. Also, the information from the cerebellum and basal ganglia to the cerebral cortex are relayed through distinct thalamic nuclei.

You might be interested in

When working with radioactive materials you must use radiation detection instruments. Which of the following instruments require

vampirchik [111]

Geiger-Muller tube is instruments requires you test three times the background of the work area.

Explanation:

These detectors are gas filled detectors and hence requires time for responding to the value. This time is taken because during this period it collects the electric charges and features of the electric circuit. It also gets stabilized during this period. This device has thumb rule i.e one must wait or hold for at the least 3 times the time constant before getting the precise and accurate reading. The time constant order is 10 seconds for the ionization chamber but for the Geiger counter it can vary from seconds to greater than 20 seconds

6 0

2 years ago

gHow would an inhibitor of cAMP phosphodiesterase affect glucose mobilization in muscle? It would reduce cAMP levels and inhibit

Ksivusya [100]

<h2>cAMP and glucose mobilization</h2>

Explanation:

It would maintain high cAMP level and elevate glucose mobilization

Phosphodiesterase is an effector enzyme which degrades secondary messenger cAMP(cyclic adenosine monophosphate)
Here in this case an inhibitor is inhibiting the phosphodiesterase therefore cAMP level will increase
As cAMP level rise it activates a protein called protein kinase A which phosphorylates phosphorylase kinase and activates it
Phosphorylase kinase becomes active that phosphorylates glycogen phosphorylase and makes it active,glycogen phosphorylase catalyse breakdown of glycogen(in liver and muscle cells)
In liver cells breakdown of glycogen occurs and glucose 1 phosphate gets converted into glucose and supplied to whole body through blood