Question

List the functions of following parts of a brain: a) Forebrain b) Midbrain c) Hindbrain

Answer 1

Answer:

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Explanation:

Forebrain Function:

Controls the reproductive functions, body temperature, emotions, hunger and sleep.

Fact: The largest among the forebrain parts is the cerebrum.It is also the largest part of all vertebrate brains.

Midbrain:

Smallest and central part of the brain

The midbrain consists of:

Tectum

Tegmentum

Hindbrain function:

The three regions of the hindbrain coordinates all processes necessary for survival. These induce breathing, heartbeat, sleep, wakefulness and motor learning.

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Answer 2

Answer:

Hindbrain (Parts and Function)

The hindbrain has three parts: medulla oblongata; cerebellum; and pons. The medulla oblongata, also called medulla or myelencephalon, is an enlargement where the spinal cord enters the brain. It contains centres that control several visceral (autonomic homeostatic) functions, such as breathing, heart and blood vessel activity, swallowing, vomiting, and digestion (gastric secretions). It serves as a screen for information that leaves or enters the brain. The medulla oblongata is well developed in all the vertebrates

The midbrain or mesencephalon, originally a centre for coordinating reflex responses to visual output, has taken an added function related to touch (tactile) and auditory (hearing) input. The roof of the midbrain is called optic tectum, which is a thickened region of gray matter that integrates visual and auditory signals. The lateral outgrowths from it form the optic lobes. Fig. 2.13, 2.14

The forebrain has two main parts: the diencephalon and telencephalon. During evolution both the diencephalon and telencephalon progressively increased in size and complexity to handle more and more sensory and motor functions, which are most sophisticated