Aresearcher has decided to lesion different parts of a cat’s brain and observe the effects on the cat’s behavior. after the surgery, the researcher notices that the cat is having trouble walking in a straight line. the cat also does not respond to the researcher randomly blowing a whistle like it did before the surgery. the researcher also noted that the cat’s sleep/wake cycle has changed since the surgery. what part of the brain did the researcher most likely lesion?

reticular formation

Explanation:

In brief this region controls the following :

1. somatic motor control

2. cardiovascular control

3. sleep

4. consciousness

5. habituation

6. pain modulation

Since the cat is having problems with the sleep-wake cycle, does not respond to the researcher, there is a change in behavior and inability to walk on straight line. This points out to damage in the reticular formation.

the oxygenated blood then leaves the lungs through pulmonary veins, which return it to the left heart, completing the pulmonary cycle. this blood then enters the left atrium, which pumps it through the mitral valve into the left ventricle. from the left ventricle, the blood passes through the aortic valve to the aorta.

deoxygenated blood leaves through the right ventricle through the pulmonary artery. from the right atrium, the blood is pumped through the tricuspid valve (or right atrioventricular valve), into the right ventricle.