Question

Biological Basis of Behavior

Nervous system

1) why is it important to study the nervous system in an evolutionary context?

2)Describe functions of the midbrain and hindbrain ?

Answer 1

Answer: Changing a brain's structure changes how that brain behaves and what kind of mind emerges from its interaction with the environment. We have clear evidence of this from people who have endured swift and dramatic changes to their brains through traumatic injury, stroke and neurodegenerative diseases like Alzheimer's. The brain's most basic building blocks have existed for billions of years: some of the simplest and oldest single-celled organisms use the same chemical messengers that our own brain and nervous system depend on.

Answer: The brain is made of three main parts: the forebrain, midbrain, and hindbrain. The forebrain consists of the cerebrum, thalamus, and hypothalamus (part of the limbic system). The midbrain consists of the tectum and tegmentum. The hindbrain is made of the cerebellum, pons and medulla.

Midbrain, also called mesencephalon, region of the developing vertebrate brain that is composed of the tectum and tegmentum. The midbrain serves important functions in motor movement, particularly movements of the eye, and in auditory and visual processing.

The medulla lies next to the spinal cord and controls functions outside conscious control, such as breathing and blood flow.