1.
Neurons communicate with one another through long protoplasmic fibers called ______________
Correct Answer
B. Axons
Explanation
Neurons communicate with one another through long protoplasmic fibers called axons. Axons are responsible for transmitting electrical impulses and information from one neuron to another, allowing for the exchange of signals and communication within the nervous system. Unlike arteries, which are blood vessels that transport oxygenated blood, furrows, which are shallow grooves, and the nucleus, which is the central part of a cell, axons are specifically designed for neuronal communication.
2.
Which of these is not a fungi of glial cells?
Correct Answer
A. Coordination of impulses
Explanation
Coordination of impulses is not a function of glial cells. Glial cells, also known as neuroglia, are non-neuronal cells that provide support and protection to neurons in the central nervous system. They play a crucial role in metabolic support, structural support, and insulation of neurons. However, the coordination of impulses is primarily carried out by neurons, not glial cells. Neurons are responsible for transmitting and coordinating electrical signals in the nervous system.
3.
What part of the brain concerned with intelligence?
Correct Answer
D. Cerebrum
Explanation
The cerebrum is the part of the brain that is concerned with intelligence. It is responsible for higher cognitive functions such as thinking, reasoning, problem-solving, and memory. It is the largest and most developed part of the brain, consisting of two hemispheres that are responsible for different functions. The cerebrum plays a crucial role in intelligence as it processes sensory information, integrates it with past experiences, and allows for complex cognitive processes to occur.
4.
What part of the brain coordinates endocrine functions?
Correct Answer
B. Hypothalamus
Explanation
The hypothalamus is responsible for coordinating endocrine functions in the brain. It acts as a link between the nervous system and the endocrine system, regulating hormone production and release from the pituitary gland. It controls various bodily functions such as body temperature, hunger, thirst, and sleep, through the release of hormones. The hypothalamus plays a crucial role in maintaining homeostasis and overall hormonal balance in the body.
5.
Concerning the development of the brain, which of these is odd?
Correct Answer
D. Archiosencephalon
Explanation
The correct answer is Archiosencephalon. The other options (rhombencephalon, mesencephalon, and prosencephalon) are all parts of the embryonic brain. The archiosencephalon is not a recognized term in the field of neuroscience or developmental biology.
6.
The connective tissue membranes that surround the brain are called _________
Correct Answer
B. Meninges
Explanation
The connective tissue membranes that surround the brain are called meninges. These membranes provide protection and support to the brain and spinal cord. The meninges consist of three layers: the dura mater, the arachnoid mater, and the pia mater. They help cushion the brain from impact, contain cerebrospinal fluid, and provide a barrier against infections.
7.
Which of these is not a function of medulla?
Correct Answer
B. Control of sneezing
Explanation
The medulla is responsible for controlling various involuntary functions in the body, such as vomiting, heartbeat, and digestion. However, sneezing is not directly controlled by the medulla. Sneezing is a reflex action triggered by irritation in the nasal passages, and it is controlled by the trigeminal nerve.
8.
The part of the brain found only in mammals is the _______
Correct Answer
D. Pons
Explanation
The pons is a part of the brainstem that is found only in mammals. It is responsible for relaying signals between the cerebrum and the cerebellum, as well as controlling various autonomic functions such as breathing and sleeping. The basal ganglia, hypothalamus, and medulla oblongata are all also parts of the brain, but they are not exclusive to mammals.
9.
The olfactory bulb helps us to _______
Correct Answer
C. Perceive odors
Explanation
The olfactory bulb is responsible for our sense of smell, so it helps us perceive odors. It receives signals from the olfactory receptors in our nose and sends them to the brain for interpretation. Without the olfactory bulb, we would not be able to detect and identify different smells in our environment.
10.
The doctor who treats diseases of the brain is called a ________
Correct Answer
B. Neurologist
Explanation
A neurologist is a doctor who specializes in treating diseases and disorders of the brain and nervous system. They are trained to diagnose and treat conditions such as epilepsy, stroke, multiple sclerosis, Alzheimer's disease, and Parkinson's disease. They often work closely with other specialists, such as neurosurgeons and psychiatrists, to provide comprehensive care for patients with neurological conditions.