Question

Which of the following structures or regions is incorrectly paired with its functions?
A. Hypothalamus: production of releasing hormones and regulation of temperature, hunger, and thirst
B. Medulla oblongata: controls respiration and cardiovascular reflexes
C. Corpus callosum: band of fibers connecting left and right cerebral hemispheres
D. Limbic system: consist of fiber tracts that interconnect different regions of brain; controls movements

Answer 1

Brain controls all the important functions of the body. Every part of the brain has its specific function. Hypothalamus controls functioning of endocrine glands. The involuntary movements in the body are controlled by the medulla oblongata. The frontal lobe of the brain controls movement of the body.

Complete answer:
Brain is the part of the central nervous system. It performs all the body functions. It is divided mainly into three parts: forebrain, midbrain and hindbrain. It contains two endocrine glands that are hypothalamus and pituitary gland.
Hypothalamus is very small in size and located at the base of the brain. It plays a very important role in many important functions such as releasing hormones, regulating temperature, hunger and thirst.
Medulla oblongata is located in the base of the brain, anterior to the cerebellum. It is cone shaped mass in the hindbrain. It controls the involuntary functions. It controls the cardiac reflexes, respiration, heartbeat, vomiting, and blood pressure.
The thick bundle of nerve fibers in the brain is called corpus callosum. It connects two hemispheres of the brain. It ensures that both sides of the brain can communicate and send signals to each other.
The limbic system consists of nuclei, paths, and cortical areas that cover the brain. It also surrounds the thalamus. It mainly deals with three functions: emotions, memories, and arousal. It does not have any role in movement.
The Limbic system does not control movement so it is an incorrect match.

Therefore, the correct answer is option D.

Note:
Hypothalamus gland also controls blood pressure, metabolism and also adrenaline levels through the release of endocrine signals throughout the body. It also helps in distribution of hormones throughout the body via the bloodstream. Pituitary gland is also present in the brain which is also known as the master gland.