Question

pls answer correct but don't answer wrong ly​

Answer 1

................................HEY BUDDY...........................

........................................HERE IS YOUR ANSWER....................................

(1.)Peristalsis is the movement of the intestine or other tubular structure, characterized by waves of alternate circular contraction and relaxation of the tube by which the contents are propelled onward. Medulla is responsible for the peristaltic movement of food.

The medulla contains the cardiac, respiratory, vomiting and vasomotor centers and deals with autonomic, involuntary functions such as breathing, heart rate and blood pressure.

Therefore, the correct answer is option d.

(2.)The brain is subdivided into telencephalon (also called as cerebrum), diencephalon (thalamus and hypothalamus), cerebellum and brain stem (midbrain, pons and medulla oblongata). The medulla oblongata is the lowest part of the brain stem (the lowest part of the brain). The spinal cord is a cylinder of nervous tissues which originates at medulla at the base of the skull and extends within the vertebral column from medulla oblongata to lumber region. Thus, the correct answer is option d.

(3.) Cerebrum serves to receive sensory inputs, to bring about integration before commanding voluntary motor responses, to coordinate the activities of another part of the brain, and to carry out higher thought processes for learning, memory, language and speech.  

(4.)Involuntary Actions involve : salivating when food is put in the mouth, breathing , defecation, heart-beat etc...

(5.) (a.)The forebrain is mainly involved in the controlling of voluntary actions. The cerebrum of forebrain controls all the voluntary actions. In addition the cerebellum is concerned with the voluntary muscle movements.

    (b.)The medulla oblongata is part of the brain stem that controls most of these involuntary actions (The brain stem is the posterior part of the brain that is continuous with the spinal cord. It is made up of three segments; the medulla oblongata, the midbrain and the pons).

..............................HOPE THIS HELPS....................................

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